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>NEW FEATURES ADDED IN THE CROWN TUNDRA
>New co-op play feature
>In The Crown Tundra, you and your friends will be able to enter and explore Pokémon Dens found on The Crown Tundra in a new gameplay feature! Deep inside these dens, you’ll have a chance to encounter Legendary Pokémon from previous Pokémon series games, so work together with other Trainers to get as far as you can!
there's also this whole ass chart showing what's in what version but there's no way I'm posting the whole thing
Also as I posted before the update is up now so you can meet Klara/Avery and get your Galarian Slowpoke and there's a preorder bonus for a pikachu or eevee shirt but whatever, I'm done now