So many people were spamming this question on their profiles and making threads about it. ¯\_(ツ)_/¯. Thanks for clearing this concern up.
IK RIGHT! BTW could you clear up how friends work? Aren't there separate lobbies for 1.8 and 1.9+? Won't people be confused?
@Nikoshka You can message friends across both version, but you have to be on the same version to play with a friend