Minecraft wiki entry for Development_versions, associated text: Custom entities that use the runtime identifier field now use the custom entity's name rather than the vanilla entity's name. (MCPE-56229)
Fixed the circle_around_anchor behavior which could cause mobs to freeze when there were blocks nearby.
Dispensed splash and lingering potions now have potion effects in their projectile component.
Fixed collision box not updating from script.
The damage_sensor component will now work on non-mob actors (such as ender crystals).
A mob spawned in the air will no longer think it's on the ground once its movement is ticked.