Merge pull request #5783 from Countly/old_changelog

Update CHANGELOG.md (old)

Author: ArtursKadikis

CHANGELOG.md

@@ -53,6 +53,7 @@ Fixes:
 - [server-stats] Fixed a data point calculation bug
 
 Enterprise fixes:
+- [ab-testing] Fixed JSON.parse issue preventing creation of AB tests
 - [push_approver] Fixed issue with the plugin not handling being "soft disabled"
 - [surveys] fixed a bug with the Survey widget where the "submit" button could become non interactable
 - [surveys] fixed issues with dashboard editor in relation to the "terms and conditions"