• If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread:
    CentOS2Alma discussion

Mail Enable 6

I know what is supported, but sometimes new versions just work ;-) I wanted to upgrade from 3 to 5 and now 6 is out I can not / don't want to upgrade to 5.
 
You can upgrade it only on your risk. We can't guarantee that unsupported third-party software will work correctly in Plesk environment.
 
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