The summer update is rolling out to Xbox One users from today.
Preview Program members have been able to play around with the update since June.
Xbox One users will find Cortana is now available along with the ability to play Background Music through music apps like Pandora.
A Games Hub has been added to Xbox Live for the top ten most played PC games on Window 10 and Microsoft is starting to combine the "best of Xbox Store and Windows Store" into a "single experience" across devices.
Nearly all of the features included Preview in early June are part of today’s update and a few additions have been added since, according to Major Nelson.
These include Language Region Independence and the Xbox App on both iOS and Android.
Other additions include: Improved sharing, Facebook friend finder, 60 fps game clip recording with the Game Bar on Windows 10 with full-screen support.
If you head through the link to Major Nelson's blog you will find more details.