Dark Forest
Sooty Pigs and Cluckshrooms in a dark forest
Cows
Various cows that can spawn in place of the usual temperate cow
Pale Animals
Both of these sun-bleached mobs can rarely spawn in the Pale Garden
Magma Cow
I'm not convinced these guys actually spawn properly but IDK how to fix it lol
Skeleton Wolves
Chickens
Flower Cows
Moolips and Mooblooms in a flower forest
Muddy Pigs
Aren't they cute?
Config Menu
The config menu can be accessed from the pause screen as long as you have access to commands. If you're looking for a more vanilla experience, some features can be toggled from here.
Moon Cow
This colorful fella spawns in the outer reaches of the end. They say there's an achievement in store for anyone who can bring one back to the overworld...
Fluffy Cows
Both of these fuzzy friends are more than willing to give you the wool off their backs
Jolly Llamas
The regular grey llama has been replaced with the jolly llama, and you can craft the jolly carpet to complete the look!
Cats
At long last, the dyed cat joins the cast, along with a few friends
Earthly Items
All of the new items that can be obtained
Swampy Mobs
Both types of Spotted pigs can be found wandering the swamps
Forest Pigs
Three new pig variants can be found spawning in forests