Minecraft wiki entry for Development_versions, associated text: MC-153470 – Language map does not close internal en_us.json file after reading.
MC-154000 – When dispenser places shulker box it decreases its stack twice.
MC-154080 – Wandering trader trading GUI does not close when it changes dimensions allowing infinite trades.
MC-154081 – Opening the survival inventory when opening a world crashes the game.
MC-154328 – The zombie siege never happens.