Minecraft wiki entry for Development_versions, associated text: Buckets can once again be used to milk cows. (MCPE-54623)
Milk buckets can again be used to craft cakes. (MCPE-52774)
Milk buckets no longer play the drinking animation continuously, when the "use" button is held down. (MCPE-54555)
Fixed an issue that was causing sugar cane to break when a nearby water source became waterlogged. (MCPE-52314)