Minecraft wiki entry for Development_versions, associated text: MC-13823 – Leads are incorrectly positioned on certain entities.
MC-14680 – Lead is shifted upwards or downwards based on leashed entity height.
MC-27535 – Mobs can sometimes still despawn, even if named with a name tag.
MC-84610 – Off-hand hotkey does not work in inventories.
MC-103462 – Some translucent parts of entities are rendered behind translucent blocks, block entities and some entities (depending on loading order).
MC-131286 – Attack will use right hand instead of left hand when swimming (main hand: left).
MC-134608 – Certain spawner tag conditions induce game crash.
MC-139313 – Ascending and descending simultaneously in lava while flying in Creative mode causes the player to float upwards.
MC-139361 – Skull model positioned out of bounding.
MC-143473 – Teleporting a mob while it is pathfinding will make it navigate back to where it was originally going.
MC-152157 – "Marie Stålkrantz" is not the right color in game credits.
MC-159371 – Leads are incorrectly positioned on bees.
MC-159502 – Bees do not avoid water; killing themselves.
MC-160520 – Bees' wandering AI tries to go through three-way corners.
MC-163254 – Block entities, transparent blocks, water, and clouds always render in front of lightning.
MC-163921 – Placing a block while looking at redstone ore plays no sound.
MC-166346 – Transparent blocks do not render properly with tripwire above.
MC-167043 – Enchantment glint only applies to the handle of shields with banners.
MC-169008 – Using end portal in the nether teleports the player to the end, but at the same coordinates the player was in the nether.
MC-171618 – Players wearing armor take less damage from burning when standing in fire under certain conditions.
MC-171969 – Fall damage is negated when stepping up after falling.
MC-177712 – Nether portal blocks do not have loot tables.
MC-182076 – Horse jumping sound is unused.
MC-182249 – Problems with potted_cactus.json block model file.
MC-185616 – Turtle eggs cannot hatch on red sand.
MC-185949 – Copy "C" in "Click to Copy to Clipboard" is not capitalized.
MC-186353 – The "s" and "m" in "Edit sign message" are uncapitalized.