Update CHANGELOG.md

Author: Tarpsvo

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [5.8.2] - 07-11-2022
+
+### Changed
+
+- Fixed multiple panels not being filled properly in page/region edit views
+
 ## [5.7.3] - 03-11-2022
 
 ### Changed