Update changelog

Author: thomaseizinger

CHANGELOG.md

@@ -7,8 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+-   A whitelist of which users can trigger the release workflow.
+
 ## [1.3.0] - 2020-02-22
 
+### Added
+
+-   Automatically close the release issue after the release branch was merged.
+
 ## [1.2.0] - 2020-02-17
 
 ### Changed