diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9784fe6e..0931c895 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.5.5
+ - Experimental support for writing to and reading from `IO` objects e.g. `jldopen(io, "r")`
+
 ## 0.5.4
  - Important correctness fix when storing very many equally sized objects
 that may get GC'ed while storing is in progress! (#603)
diff --git a/Project.toml b/Project.toml
index caaac3c2..e2669ac2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "JLD2"
 uuid = "033835bb-8acc-5ee8-8aae-3f567f8a3819"
-version = "0.5.4"
+version = "0.5.5"
 
 [deps]
 FileIO = "5789e2e9-d7fb-5bc7-8068-2c6fae9b9549"