Within this version a CVE issue around the private messages is resolved. So we recommend to update your system if you use the private messages.
We recommend you to read our announcements for version 4.3 if you have not done before.
A full list of all new features and bugfixes can be found in our issue tracker for version 4.3 and 4.3.12!
Full Changelog: https://github.com/Admidio/admidio/compare/v4.3.11..v4.3.12
If you are new to Admidio and want to install it on your webpage than the following wikipage could help: Install Admidio
The following wiki pages maybe interesting on an Update: Update Admidio