Released back in May, this looks to be stable.
Update is (again) super clean:
select the migration target (i.e. SLES 15 SP5), approve the EULA, wait a while.
I’ve been flagging the ease of upgrade for several years. SUSE have this nailed.
Update: except Redis got a tad confused. Needed to get it re-setup to start correctly.
Update again: openSUSE build server saves the day again: Install package openSUSE:Backports:SLE-15-SP5 / php8-redis along with https://citizix.com/how-to-install-configure-redis-6-on-opensuse-leap-15-3