Minecraft wiki entry for Development_versions, associated text: MC-112 – Blocks/entities above beds push players out of bed.
MC-749 – Villager can have all trades disabled
MC-926 – When sleeping on a bed, particle effects are slanted or don't appear at all.
MC-2376 – Wolves shaking fur dry while dying.
MC-13497 – Wither skeletons and zombie pigmen won't go through lava to get to enemies, even though they can't burn.
MC-30845 – Camera is glitching through tall grass, seagrass, and kelp in F5 (third-person) mode.
MC-44471 – Difficulty lock appears to be unlocked if switching dimensions.
MC-45489 – Villager Spawn is Unbalanced/Broken
MC-46445 – Spectator mode particles and sounds computed from where you have been before
MC-60772 – Draw order of translucent blocks based on head position (not POV).
MC-63070 – Chunks do not render behind the player in F5. Perhaps culling should calculate from camera POV instead of presuming head position.
MC-71256 – Endermen immediately start moving after being looked at instead of freezing and staring back at you.
MC-76416 – Player can interact with dying mobs.
MC-80658 – Note blocks: Gray color for certain music notes.
MC-96932 – Minecart and boat shadows are too small.
MC-99255 – Mobs killed by dogs give wrong loot tables.
MC-102514 – Moon has orange light.
MC-105099 – Slimes & Magma Cubes can still attack players when they are in their death animation.
MC-109954 – Saddled pigs/horses still move when in their death animation.
MC-114559 – Lightning converts dying mobs.
MC-114560 – Dying zombie villager converts to an alive villager.
MC-118764 – Items inside the villager trading GUI drop when the interface is closed.
MC-127016 – Waterlogged wooden slabs/stairs/fences/scaffoldings can still catch fire.
MC-129481 – Water Backface Culling in F5 Mode
MC-131845 – Scroll bar resets when selecting a language.
MC-132351 – Plants don't grow when there is block above them.
MC-132478 – Entering a bed while in 3rd-person view will show the point of view as 1st-person while in the bed
MC-133188 – Cannot climb waterlogged ladders or scaffolds.
MC-135157 – Crops cannot be planted by aiming at the side of a block.
MC-137308 – selectWorld.edit.backupFailed has no translation.
MC-144928 – Endermen don't try to avoid fireworks.