Minecraft wiki entry for Development_versions, associated text: MC-172107 – Piglins and hoglins do not get zombified in the End.
MC-172899 – Piglins with blocks (pumpkins) equipped on their heads show z-fighting.
MC-173015 – Crimson roots, warped roots, and nether sprouts are not randomly offset.
MC-174024 – Spawn rates for dolphins and squid are higher than before.
MC-174909 – Endermen do not teleport when on magma blocks.
MC-175251 – Fish are spawning in with extremely high numbers. Over 200 different entities of cod every five minutes.
MC-176356 – "Distance by Strider" statistic is missing.
MC-177839 – Blackstone and blackstone walls use the blackstone side face on the bottom, while blackstone stairs and slabs use the blackstone top face on the bottom.
MC-178487 – Saddles on untamed horses no longer render.
MC-180064 – Piglins would rather use an unenchanted crossbow instead of an enchanted crossbow.
MC-180297 – Player name color in list appears too dark.
MC-180372 – Loading old beta or 1.0 worlds crashes the game.
MC-180407 – Piglin bartering is limited to dropping a single item stack from the loot table.
MC-180410 – Enderman spawn rate seems very low on upgraded worlds.
MC-180575 – Dispensers now always plays "dispenser failed" when dispensing glowstone.
MC-181353 – Warped and crimson doors have no hinges.