Minecraft wiki entry for Development_versions, associated text: MC-213986 – Pistons and dispensers can be used to create ghost blocks using powder snow.
MC-219018 – Ghost items can be created using /item (server doesn't update client inventory correctly).
MC-223368 – Strength and weakness potions / custom attack damage attributes does not change damage from goats.
MC-225816 – Hanging roots appear large when an item entity.
MC-226461 – Logs can be replaced with stone near lava pools.
MC-226505 – Goat's long jump is not affected by the jump boost effect.
MC-226512 – Goats do not use the damage of held items when ramming entities.
MC-226948 – Withers are now affected by potion effects.
MC-227387 – World gen datapacks will likely crash or softlock the game.
MC-227435 – Lag when placing heads of non-existent players when on servers.
MC-227483 – root_system feature config's codec uses a wrong field.
MC-227520 – Overworld Fossils always generate at bedrock level.
MC-227557 – End portal texture appears stretched after world conversion.
MC-227618 – Small dripleaf is consumed without being placed when used on tall seagrass.
MC-227651 – Group for lapis lazuli ore smelting and blasting recipes is misspelled.
MC-227821 – Client crash when trying to create/edit realm immediately after deleting previous one.
MC-227891 – Ender pearls despawn when a player logs out of a server.
MC-228219 – Thrown ender pearls disappear upon entering the exit end portal.
MC-228343 – java.lang.NullPointerException when random_selector default feature isn't found.
MC-228430 – Very long loading pause while booting the game ("Failed to add PDH Counter", caused by oshi).
MC-228828 – Specifying the --server parameter when starting the game, causes the game to crash.
MC-229299 – Blue axolotls can spawn naturally.