Minecraft wiki entry for Development_versions, associated text: Reduced the time that bees take to search for a new hive when a hive is full.
Bees no longer try and find their way home if they end up in the Nether or the End dimension.
Bees can now be tempted and fed with two-high flowers.
Bees will now attack if a player harvests honey from the hive at night.
Fixed a bug that was causing bees to not get angry when their hive was harvested.
Bees now escape from the hive when it is on fire. (MCPE-53609)
Changed return-to-home priority so that bees are more eager to go home when it's raining.
Bees no longer clip inside honey blocks when flying near them.
Bees now spawn only in blocks the player can move through (instead of getting stuck inside leaves, for example).
Bees are now able to gather nectar from flowers that have been placed in the Nether.
Bees now hover correctly over flowers, instead of beside them.
If a bee's home hive is blocked, it will no longer hover endlessly outside the hive.
Fixed an issue that was sometimes preventing bees from entering hives that are not full.
Baby pigmen now hold their swords in their hands, rather than around their necks. (MCPE-53454)