Minecraft wiki entry for Development_versions, associated text: MC-188 – doFiretick makes fire to not extinguish.
MC-607 – Running at a high resolution causes large portions of the screen to be unclickable.
MC-4266 – Death counter does not update.
MC-13559 – Pick block from inventory in creative doesn't preserve size of stacks.
MC-16075 – Entities other than the player can't leave the End.