Minecraft wiki entry for Combat_Update, associated text: 1 Mobs
1.1 New
1.2 Changed
2 Blocks
2.1 New
2.2 Changed
3 Items
3.1 New
3.2 Changed
4 Non-mob entities
4.1 Changed
5 Effects
5.1 New
6 Potions
6.1 New
6.2 Changed
7 Structures
7.1 New
7.2 Changed
8 Gameplay
8.1 New
8.2 Changed
9 Enchantments
9.1 New
9.2 Changed
10 Others
10.1 New