diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5a8827ead32c4588d296cfb498cb54f2de57e5c..4f31d298a5f77a76e5ed1596899a09ff25410270 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Rename `setE3Env.bash` to `activate`
 * Add alias from `setE3Env.bash` to `activate`
 * Updated PV-names to be ESS compliant, and remove VERSIONS PV
+* Changed from `build number` to `revision number`
+* Added revision number parsing for test versions
 
 ## [4.0.0]