I went to my clan page (not clan forum) and its showing clan xp and all this other shit, when did this become a thing?

I would like to know too. Didn't see this layout so far, think it was implemented actually today.

Recently today, part of the clan update, i guess it's slowly being pushed.

The notes of the update came a little later than the update itself, but here's all about it: http://forum.toribash.com/showthread.php?t=602241
Closing