Microsoft’s console receives the co-streaming feature through Mixer, and other changes are implemented as well.
You are probably attached to your Avatar on Xbox Live, but starting now you have the option to change it to a custom picture. No matter if you go mobile, through Windows 10 PC or directly through Xbox One, you can now add a custom Gamerpic using any (well, qualitative) picture. The same goes with Club profile pictures and backgrounds.
Mixer, the streaming service from Microsoft, is now supporting co-streaming on Xbox One. The process of inviting other players to co-stream is simple and doable directly from your console. A Mixer tab was added to Club to improve the process of discovering new and interesting streams.
Other features include seamless Sign-In with Xbox One gamepad, as well as additional changes for Arena. You’ll get a better glimpse at these through Major Nelson’s blog post.