On Tuesday, 29 November 2022, at 08:44:48 (+0000),
Mark Holliman wrote:

I mentioned Fedora 9 and CentOS 9 (Stream) simply because they tend
to be compatible, and something that works on them is likely to work
on Rocky9.

RHEL 8.x is based on Fedora 28.  RHEL 9.x is based on Fedora 34 via
CentOS Stream.  You can find this information on Wikipedia:

  
https://en.wikipedia.org/wiki/Red_Hat_Enterprise_Linux#Version_history_and_timeline

Fedora 9, on the other hand, was released in 2008.  It was between
RHEL 5 and 6; RHEL 6.x was based on Fedora 12.
(https://en.wikipedia.org/wiki/Fedora_Linux_release_history#Fedora_Linux_9)

I'm not sure where you heard/read that Fedora and RHEL versioning were
synchronized, but as you can see from the above articles, they differ
by a lot.  (And that difference is actually growing, not shrinking,
due to Fedora's much shorter release life cycle.) :-)

Michael

--
Michael E. Jennings (he/him) <m...@lanl.gov>            https://hpc.lanl.gov/
HPC Platform Integration Engineer - Platforms Design Team - HPC Design Group
Ultra-Scale Research Center (USRC), 4200 W Jemez #301-25   +1 (505) 606-0605
Los Alamos National Laboratory,  P.O. Box 1663,  Los Alamos, NM   87545-0001

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