Minecraft wiki entry for Development_versions, associated text: MC-87949 – The shield use statistic is not working.
MC-89956 – Levitation has no effect if gliding with elytra.
MC-116293 – Functioning clock and compass in recipe book.
MC-125613 – Datapack tag #stairs does not use #wooden_stairs.
MC-132236 – When executing /reload and then pressing L to open advancements, it instead tells me that there are no advancements unless I click.
MC-145862 – Villagers try to sleep in occupied beds.
MC-152084 – Villagers occasionally stand up out of beds at night, then can never sleep in that bed again.
MC-152170 – When a villager takes the bed of another villager, then the bed's previous owner will not look for a new bed.
MC-157077 – Villagers will not sleep in beds at night.
MC-158542 – Iron golems do not stop spawning.
MC-160250 – Naturally-generated villagers are not pathfinding towards their POI; POI detection range is too small.
MC-164205 – Endermen do not spawn in the End if difficulty is set to Easy.
MC-166764 – Villagers spawned during world generation have a lower follow range than villagers spawned by other means.
MC-168139 – Enchanted armor pieces worn by entities lose their enchantment glint when looked at from certain angles.
MC-168673 – Iron golems congregate all in the same place in some villages.
MC-170612 – Villagers spawned by meeting points have frozen AI and do not move when that chunk is freshly generated.
MC-172524 – Letters of name tag render inconsistently when sneaking (within the same name tag).
MC-173115 – Mobs can spawn inside of wither roses.
MC-174568 – Rail updates are 3–4x times laggier since 1.13.
MC-174648 – You can unhighlight the recipe book button of crafting interfaces.
MC-179989 – Smithing table and anvil UI does not have "Inventory" title above player inventory.
MC-181566 – Powered redstone dust only emits particles at the center of the block.