Minecraft wiki entry for Development_versions, associated text: Players flying in Creative mode are no longer pushed by liquid current (MCPE-84592).
Farmer villagers can now use bone meal on crops and can turn excess seeds into bone meal at their composter (MCPE-74079).
Protection enchantment now properly works on most damage types (MCPE-40651).
Fixed a desync issue that could sometimes cause health to regenerate only visually.
Landing on a stalagmite is now properly considered fall damage (MCPE-151192).
Fixed some issues in where damage invulnerability wasn't properly being applied.
Fixed an issue where the Protection enchantments mitigated too much damage. This has been changed to match Java Edition (MCPE-113191).
Absorption hearts no longer stay yellow while under the Wither effect (MCPE-131852).
Lowered the amount of knockback resistance granted by netherite armor (MCPE-109408).
Punching deals less damage now, to better match the Java Edition (MCPE-152713).