For some reason, no matter how I log on my steam account or try to find it from steam page, for some reason I cannot find this update or edition anywhere!
I pretty much need it so I can join my friend to one of unofficial servers and it is a must to have in there. How should I handle this?
Hey there,
Please read the Social Guidelines. This post should be in the Conan Exiles subforum, not the Mutant Year Zero: Road to Eden one. Feel free to ask a moderator to move it for you.
The Barbarian Edition and its services have been discontinued, see https://conanexiles.gamepedia.com/Barbarian_Edition.
I’ll also note that as you are able to read, there are no advantages in-game. Furthermore, anything your friend has is either something you can’t find given your experience, from a mod or pre-order (it’s not from this Edition). There is no neccesity in having these items. Ask them how he got it and try to calm down a little bit 
Hello @Peapea, welcome to the community!
We’ve moved your post to a more adequate board and, as @TheLOLxd2 mentioned, the Barbarian Edition is no longer available as it was a limited edition.
In any case, you should be able to join any server as all the game copies are the same and offer the same content.