The Stray, Husk, Cat, and Horse Variants (Zombie, Skeleton, Mule, Donkey) Spawn Eggs are missing. I don't know if this is intended (If it is, please change it back), since I couldn't find any other reports.
MC-103195
Certain Spawn Eggs Missing from Creative Inventory
Resolved
Duplicate
0
Johnny Jurgington
(Unassigned)
Unconfirmed
Minecraft 1.10 Pre-Release 2
Retrieved
They got removed again.