Update CHANGELOG.md

CHANGELOG.md

@@ -4,10 +4,6 @@ All notable changes to Merlin will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
-### Changed
-- Task id is now the path to the directory
-
 ## [1.12.2b1]
 ### Added
 - Conflict handler option to the `dict_deep_merge` function in `utils.py`
@@ -30,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Applying filters for `merlin detailed-status` will now log debug statements instead of warnings
 - Modified the unit tests for the `merlin status` command to use pytest rather than unittest
 - Added fixtures for `merlin status` tests that copy the workspace to a temporary directory so you can see exactly what's run in a test
+- Task id is now the path to the directory
 
 ### Fixed
 - Bugfix for output of `merlin example openfoam_wf_singularity`