1.21.4

Item drops sometimes appear at the wrong location

Minecarts that occupy the same space maintain their momentum

Player data and region files not written/saved to disk simultaneously, causing item loss/duplication

Field of Vision does not turn at all with a turning minecart

Blocks don't retain their names, enchantments, or attributes after being placed and picked up again

In the world selection screen, world names/versions/timestamps can overflow the list to the right

Mouse buttons block all inventory controls that are not default

Some entities are displayed outside of their spawner

Detector Rail switches junction before Minecart passes detector (happens only with minecarts of certain speed)

Powered rails do not update when additional power sources are added or removed

Entities standing on mud or soul sand next to lava are set on fire and take damage

Smooth lighting doesn't work on item frames and paintings

Sprinting / falling on level 1 and 2 snow, lily pads and carpet use the block below for the particles

Breaking some blocks produces wrong particles

Axolotls, endermen, and enchantment glint animations continue playing when the game is paused

Adjusted speed does not affect sprint-jumping/falling/floating with levitation/floating with NoGravity

Particles emitted from dragon egg when teleporting are not pointing in the correct direction

Ender pearls can teleport entities inside solid blocks

Beacons keep higher level effects when partially destroyed

Minecarts pass through non-full-height blocks when snapping to rails

Several blocks made of wood (Signs, Ladders, Chests, Trapdoors, Doors...) won't burn

Enchantments from items held in the main hand are applied to other items when entities are killed

Entities floating in water don't receive vertical knockback upon being hit

Block cracks don't appear on the lower halves of doors when zombies are breaking them

Firework light flash rendered too dark

Large amount of chests and shulker boxes creates FPS drop

Text can extend beyond the edges of some GUIs

The white markers on maps created in the nether or end dimensions don't disappear when viewing the maps in the overworld until the world is reloaded

TNT minecarts sometimes detonate when going around corners