This is the first I have heard about Centos Stream. I found an announcement dated 8 December 2020 saying that CentOS Project is shifting focus to CentOS Stream, and a LOT of comments and confusion. The main thing is that Stream apparently tracks Ahead of a current RHEL release. This may be a concern because I and many others use CentOS as a stable 'tried and tested' platform not a 'cutting edge' platform. Of course, I may be just as confused as everyone else seems to be about what all this actually means. Getting a bit off topic here, so apologies if I'm upsetting anyone. Regards, Dave Bolt -----Original Message (extract) ----- From: MichaelDBA [mailto:MichaelDBA@xxxxxxxxxxx] Sent: 19 March 2021 17:18 To: Tom Lane Cc: ram pratap maurya; paul.foerster@xxxxxxxxx; pgsql-admin@xxxxxxxxxxxxxxxxxxxx Subject: Re: RHEL OS upgrade from 6.7 (Current version) to 8 version for Postgresql database On a side note, shouldn't you be upgrading to CentOS Stream instead of CentOS 8?