DOC: update CHANGELOG

CHANGELOG.md

@@ -5,6 +5,24 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2] - 2022-03-25
+(Timm Fitschen)
+
+### Added
+
+* EXPERIMENTAL Access Control Management API (caosdb.acm.v1alpha1)
+* EntityACL API as extension of the Entity API (caosdb.entity.v1)
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+### Security
+
 ## [0.1] 2021-11-08
 (Timm Fitschen)