just migrated WHM/cPanel from a server running RHEL 7.9 to a fresh installation of AlmaLinux 8.9.0 and WordPress reports the following in its “Site Health Status”, despite the fact that PHP PECL module imagick (3.7.0) with PHP 8.2 is installed on the old server and WordPress there does not report this notification:
One or more recommended modules are missingPerformance
PHP modules perform most of the tasks on the server that make your site run. Any changes to these must be made by your server administrator.
Despite AlmaLinux now no longer aiming for bug-for-bug with RHEL,
RHEL content does still has an effect and Red Hat does backport to RHEL:
That is, package in RHEL can have different support life-cycle from same package in upstream.
The prime examples are kernel and Python:
RHEL 7 has supported kernel “3.10.0” despite upstream 3.10 having been dead for many years
Python 2.7 is dead, but both RHEL 7 and RHEL 8 do support it until next Summer (and for extra money even beyond?)
In other words, “support” for RHEL versions of PHP might be more relevant than upstream “support” – if one does use them, rather than something more directly from upstream. Naturally, whether that is “active” support, is an another question.