Zombie/un-dead stop burning during daylight if they're stood on lower slabs

Snow layers mess with mob attacks.

Boats floats when placed on carpet

Tripwire hook not updating

8 Snow layers will give 1 snowball when mined with a shovel with or without silk touch.

Guardians stop being rendered about 16 blocks away from the player (while in water)

No collision check for mob spawns.

Repeaters and comparators give off light

Villages don't share villagers in their caps (lacks java parity)

Villages adding doors in a 64 block radius

Placing pistons and other redstone components inconsistent in negative coordinates.

Piston retracting with no block has bounding box extending to 0,0,0