Minecraft 1.5.1

Player facing changes when passing through nether portals in certain cases

Mobs temporarily glitch out of fenced areas / into blocks

Having FOV over 100 and sleeping in bed will cause you to look inside your head

SMP Sound Lag

Chickens suffocate when spawning

Green arrow bug on maps in frames

When scaling a map with paper, shift-clicking on it won't apply the correct scale level.

Slab and stairs lighting incorrect

Potion of night vision: total blackout

Droppers, Dispensers and Pistons activate when blocks are providing power diagonally or two blocks above

Blocks/entities above beds push players out of bed

Mobs visually sinking through solid blocks

3rd person view reverts to 1st person view if head inside a block (corner a one block wide tunnel in a minecart, ride on a horse through a block, piston...)

Chunks not loading surface, revealing caves, etc.

Mob heads darker or lighter on the left side

"/spawnpoint" command fails directly on Pressure Plates, Cobwebs, Signs, Open Fence Gates

Powered pistons drop as items in creative

Ghost boats

Non latin renamed items have ? instead of characters

When reaching the other side of a nether portal the animation plays forever until stepped out of

Creating or loading a singleplayer world shows the main menu for a brief second

Bats flying over lava sometimes catch on fire

Paintings & item frames can overlap / Z-fighting when overlapping

Fall damage is ignored for a couple of seconds when reloading into LAN or singleplayer worlds

The fullscreen/windowed mode toggle status is inconsistent when using hotkeys

Digging straight down glitches out the breaking animation (Z-fighting)

Various events are no longer logged

Player facing changes when passing through nether portals in certain cases

Mobs temporarily glitch out of fenced areas / into blocks

Having FOV over 100 and sleeping in bed will cause you to look inside your head

SMP Sound Lag

Chickens suffocate when spawning

Green arrow bug on maps in frames

When scaling a map with paper, shift-clicking on it won't apply the correct scale level.

Slab and stairs lighting incorrect

Potion of night vision: total blackout

Droppers, Dispensers and Pistons activate when blocks are providing power diagonally or two blocks above

Blocks/entities above beds push players out of bed

Mobs visually sinking through solid blocks

3rd person view reverts to 1st person view if head inside a block (corner a one block wide tunnel in a minecart, ride on a horse through a block, piston...)

Chunks not loading surface, revealing caves, etc.

Mob heads darker or lighter on the left side

"/spawnpoint" command fails directly on Pressure Plates, Cobwebs, Signs, Open Fence Gates

Powered pistons drop as items in creative

Ghost boats

Non latin renamed items have ? instead of characters

When reaching the other side of a nether portal the animation plays forever until stepped out of

Creating or loading a singleplayer world shows the main menu for a brief second

Bats flying over lava sometimes catch on fire

Paintings & item frames can overlap / Z-fighting when overlapping

Fall damage is ignored for a couple of seconds when reloading into LAN or singleplayer worlds

The fullscreen/windowed mode toggle status is inconsistent when using hotkeys

Digging straight down glitches out the breaking animation (Z-fighting)

Various events are no longer logged