We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
It's probably in preparation for WINDOWS 10. It comes out next week and they wanted to create an OS/UI which is unified across different devices like windows phone, PCs, and Xbox. And since this site is the official site for Xbox 360 and Xbox 1.