Minecraft wiki entry for Development_versions, associated text: MC-132789 – Unexpected piston behavior when chaining repeaters
MC-132806 – You cannot grant/revoke specific advancement criteria because of a colon in its name.
MC-132870 – Weird lag with large amounts of entities in 1.13 compared to 1.12.2
MC-133158 – Underwater waterlogged blocks still produce water dripping particles.
MC-133842 – Crash when getting kicked while in Inventory
MC-134392 – Spawers will spawn dolphins inside of solid blocks.
MC-134402 – Statistic for cleaning shulker boxes is missing.
MC-135079 – Purpur stairs and slabs cannot be crafted using purpur pillars.
MC-135126 – Bone meal on underwater grass blocks doesn't spawn sea grass.
MC-135468 – Mooshroom disappears when sheared
MC-135791 – Mobs glitching out