As of Enterprise Architect Release 15.2, this section of the Help presents the Release Notes identifying the changes made to the product in each release.
Where a change has been described or illustrated in the Enterprise Architect User Guide, a link is provided to the appropriate topic.
Click on the number of the release you want to check, to display the Release Notes for that release.
Release 15.2, released August 2020.
Also see the Enterprise Architect 15.2 page of the Sparx Systems website.