Minecraft wiki entry for Development_versions, associated text: MC-139693 – Blocks appear elsewhere in the world when they update
MC-139722 – Vindicators now have green eyes
MC-139764 – World generation logs warning "Empty or none existent pool : minecraft:empty"
MC-139818 – Pillager outposts spawn absurd amounts of pillagers
MC-139829 – Illager patrol won't follow the leader