How can I play as pteranodon?

[Defenestration]

I go into the game and there's no new additions to the roster. What do I do?

[Bear]

Well, are you on the evrima branch?

[Tregrenos]

https://m.youtube.com/watch?v=clEBPkYwueI

[Waspinator]

but but but but but! when i try and do that Tregrenos it,s says i need a anti cheat
and i dont know what that means