Minecraft wiki entry for Development_versions, associated text: Spore Blossom no longer has a randomly offset hitbox (MCPE-121658)
Moss Block and Moss Carpet now break when moved by Pistons and Sticky Pistons can no longer pull them (MCPE-121751, MCPE-122004)
Water dripping from Pointed Dripstone can no longer fill Cauldrons with Potions (MCPE-131180)
Measurements of hitbox of Spore Blossom now match Java Edition
Fixed issue causing Slime and Honey Block movement slowdown to not be fully applied to players