Minecraft wiki entry for Development_versions, associated text: MC-30939 – Nether portal continues emitting light, even if portal is broken.
MC-45749 – Potion particles always spread from the northwest corner of a block, regardless of impact.
MC-163333 – Plains houses and decorations can generate in taiga villages.
MC-166593 – Zombie villagers in zombie villages are not persistent.
MC-167386 – Binding hotbar hotkeys to mouse thumb button will not interact the way it should.
MC-167554 – Enchantment glint on shields is rendered incorrectly.
MC-189570 – Middle mouse button does not work as a hotbar slot in inventory.