Minecraft wiki entry for Development_versions, associated text: MC-137784 – Vindicators sometimes get stuck in their attack animation.
MC-138179 – Crashes when enabling fullscreen (snapshot).
MC-139394 – Entities suffocate in glass.
MC-140469 – Paths drop down when generating.
MC-141155 – Structure block integrity solely dependent on structure location, integrity seed is ignored.
MC-141484 – Entities stay on the global list even when the chunk unloaded.
MC-142703 – Joining world outside of spawn chunks whilst riding entity results in desync
MC-145731 – Turning in boats causes extremely annoying frame issue.
MC-145864 – Villagers see players in spectator mode.
MC-146166 – Internal Java error after opening barrel (ticking error).
MC-146218 – Stuttering screen when spectating someone.