Wither skeletons are now much more rare. The spawn rate of the packs is normal, but a lot of these consist of normal skeletons. Previously you'd find a pack that would consist of for example 3 wither skeletons and one skeleton - now it's the other way around if not worse. I can usually find packs of 2, 3 or 4 which are just skeletons.
Comments 4
Can a mod please reopened this; appears to not have been fixed or broke again in latest snapshot. Noticed while testing for blazes seeing through walls a high regular skeleton count. Tested and regular skeletons are again at a 50% or more spawn rate.
Can confirm that normal skeleton spawning is much higher than it was in 1.10.2. In 10-15 minutes of playing on my basic wither spawning platform, I average 50% or better on skeletons to wither skeletons; some groups were entirely regular skeletons.