The main focus has been on the compatibility with PHP 8.1, and to that end we upgraded some of the PHP libraries that CMS Made Simple depends on. During the process, we also made some fixes and performance improvements. Although all efforts have been made to ensure the release is bug free, users should test all functionality, especially that of third-party modules, in a development environment before switching PHP versions on a live site.

For further detailed information, please see the changelog where there is a full list of fixes and improvements.

As per the Dev Team's official support policy, the only versions of CMSMS currently supported are now v2.2.16 and v2.2.17. Please upgrade at your earliest convenience.

Thank you for your continued support and use of CMS Made Simple!

Your Dev Team.