Minecraft wiki entry for Development_versions, associated text: MC-184609 – Text renders in the wrong order.
MC-184619 – Piglins riding on other entities float.
MC-184629 – Piglins riding on hoglins or other piglins automatically dismount them.
MC-184640 – Only one piglin can ride on a boat while the other piglin dismounts the boat.
MC-184730 – Crash: java.lang.NullPointerException: mouseClicked event handler – Some Superflat presets crash immediately when trying to generate them.
MC-184740 – Structures generated in previous versions are not recognized as valid structures, causing mobs not to spawn.
MC-184778 – Redstone dust can be toggled between cross and dot in adventure mode.
MC-184907 – [Crash] java.lang.UnsupportedOperationException - Some villages cause crashes.
MC-184936 – Old Minecraft logo in the end poem/credits.
MC-185141 – Opacity of the new Minecraft logo when fading in the main menu is inconsistent with other elements.
MC-185156 – Worldgen settings are not validated and can cause crashes.