The old update

Updated several old features that need to be updated, such as player animations, old mobs Animation (such as chickens, cows, sheep, pigs, etc.) and also gives them some additional small abilities, such as eating grass or other things, and also gives players more abilities such as being able to sit, crawl, lie down, etc. And I hope Mojang adds a special slot for using elytra, so it can be used in conjunction with chestplate armor, and change more Minecraft old featured