Minecraft wiki entry for Development_versions, associated text: MC-10901 – Various mobs can see invisible players.
MC-64581 – Game freezes a couple of seconds when changing mipmap level parameter.
MC-68563 – Barrier particles display random textures when switching resource packs.
MC-73724 – Iron golems no longer actively seek out hostile mobs.
MC-79320 – Invisible villagers and wandering traders can be seen by zombies.
MC-106430 – "Glowing" shader not reloaded on resource pack reload.
MC-116969 – Mobs look at invisible mobs/players.
MC-129855 – Turtle egg block model has stretched texture.
MC-130564 – Server resource packs can brick the client for periods of time.
MC-131368 – Snow golems attack invisible mobs.
MC-134625 – Tesselating liquid in world - NullPointerException.
MC-137009 – Shulker Detection Range Incorrect for invisible targets.