Minecraft wiki entry for Development_versions, associated text: Pistons with data values 6 and 7 can no longer be placed using slash commands. (MCPE-21558)
Using the /clear @p item now clears correctly auxiliary values.
Players can no longer use the /spawnpoint command in the Nether dimension.
Using the /replaceitem command now works correctly with barrels. (MCPE-48184)
The /clear command now works correctly with damageable items.
Running the "/clear" command message now shows correct amount of items removed. (MCPE-34750)
Carpet is now removed correctly when using the "/clear" command.