This article will help answer this commonly asked question
With every new release, a new release note is published; all of them can be found under

kb.secomea.com Prime Release Notes - The newest release is at the bottom of the list.
kb.secomea.com - Release Notes - The newest release is at the bottom of the list.
In the release article, can you check the features and bugs fixed in the most recent version, as well as the backlog for the previous version.