Am 23.06.21 um 16:31 schrieb Daniel Noga:
In 15.2 was already conservative with 2 major versions behind to release date, in 15.3 is even more convervative with 3 major versions behind (21.1 released in may, 21.0 in march, 19.3 in december) 21.0.0 is considered a "development" release [1], and I think "stable" distributions are generally careful to use them. The first one that reasonably could have made it was 21.0.1 in April, and that might have been too late for inclusion in SLE.
Interestingly Mesa in SLE/Leap was at 20.3.3, but then came
back to Mesa 20.2.4 (bsc#1181486)
and that bug is not accessible. So we don't know what was the reason for that downgrade, and whether going to 21.0.1 would also have solved it. [1] https://www.mesa3d.org/news/releases/mesa-21-0-0-is-released/