Minecraft 18w20b

Lily pads can be placed intersecting entities

When sleeping on a bed, particle effects are slanted or don't appear at all

A dragon head is invisible if the entity wearing it is not in view

Whether or not a player experiences some effect is calculated based on the block under the center of the player

Upper slabs with water/lava on top makes midair dripping water/lava

Snow covered grass/podzol/mycelium block side texture does not match original block

Several mobs can pop off paintings, item frames and leads and destroy minecarts, armor stands and anything in item form even when mobGriefing is turned off

Wrong rendering order of particles, hitboxes, clouds, transparent blocks, breaking animations and various other transparent textures

Saturation and Instant Health/Damage effects don't have an icon

Multiple background /title songs playing at one time / automatic music overlap (not Jukebox music)

Bad hit boxes and eye positions

Can't place redstone on sea lantern

Endermen won't turn hostile when shot with arrows and other projectiles

Endermen can attack players in the same team

Snow blocks receive (useless) random updates and can get destroyed when there is a light glitch

Bow animation broken in off-hand in third person

Slime blocks moved by pistons often fail to bounce up the player

Small slime has no jump or squish sound

Villages in other biomes don't have their respective saplings

You don't take fall damage when riding 1.9+ boat off a high area

Lily pads can be placed intersecting entities

When sleeping on a bed, particle effects are slanted or don't appear at all

A dragon head is invisible if the entity wearing it is not in view

Whether or not a player experiences some effect is calculated based on the block under the center of the player

Upper slabs with water/lava on top makes midair dripping water/lava

Snow covered grass/podzol/mycelium block side texture does not match original block

Several mobs can pop off paintings, item frames and leads and destroy minecarts, armor stands and anything in item form even when mobGriefing is turned off

Wrong rendering order of particles, hitboxes, clouds, transparent blocks, breaking animations and various other transparent textures

Saturation and Instant Health/Damage effects don't have an icon

Multiple background /title songs playing at one time / automatic music overlap (not Jukebox music)

Bad hit boxes and eye positions

Can't place redstone on sea lantern

Endermen won't turn hostile when shot with arrows and other projectiles

Endermen can attack players in the same team

Snow blocks receive (useless) random updates and can get destroyed when there is a light glitch

Bow animation broken in off-hand in third person

Slime blocks moved by pistons often fail to bounce up the player

Small slime has no jump or squish sound

Villages in other biomes don't have their respective saplings

You don't take fall damage when riding 1.9+ boat off a high area