Gordan Bobic via discuss <discuss@lists.mariadb.org> writes:
FWIW, I am actively considering taking on post-EOL maintenance of 10.4.x and backporting applicable 10.5.x patches to it. Reason being performance anomalies similar to the ones you have bumped into.
I think this is a good idea. I also think the MariaDB Foundation could take a role in this. I'll be happy to assist with the backporting of patches. I think the important thing will be to be quite restrictive about which patches are back-ported. It should only be critical fixes, mostly security fixes and regressions. There's usually a good argument for some person's favorite patch to include, but the whole purpose of this will be to provide a very stable branch, which is best facilitated by minimizing changes done. - Kristian.