Minecraft wiki entry for Development_versions, associated text: MC-188987 – When standing on certain non-full blocks, the player gets pushed off if there is a lower area next to the block.
MC-189081 – Chains create water sources.
MC-189256 – Hoglin and zoglin tusks textures are not separate.
MC-189326 – Lecterns do not stack with other lecterns after being placed down and broken.