Update CHANGELOG.md

Author: Christoph Wolfes

CHANGELOG.md

@@ -9,6 +9,8 @@ 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]
+
+## [v20.04.4-1] - 2022-05-05
 ### Added
 - Make sure scripts in /install are executable in Packer build process