High idle CPU usage on servers compared to earlier versions

Memory leak and crash while no players online

Travel through nether portal crashed server

Server crashes on login due to server tick taking 60 seconds

Item entities turn invisible when dropped on the ground

Game crashed while enlarging a map

Memory leak when using /tp too quickly

Render distance @32, freeze by spamming: "The save is being accessed from another location, aborting"

Guardian Elder not tracked as separate mob in stats

Chickens constantly flap their wings

Worldborder can force player to spawn underwater

Chicken jockey falls into solid block when chicken dies

Dogs attack mobs in lava

StackOverflowException on custom world generation

Lava not setting wood on fire

Items held by zombies are invisible