Among these features are family sharing - which allowed users to digitally share one game between 10 members of their “family” - and the ability to have your game collection available digitally through your Gamertag, wherever you go.
Although it would seem that the latter will at least still be available for those games downloaded from Xbox Live.
Speaking to Kotaku, VP of Xbox Live Marc Whitten said, "There’s a few things we won’t be able to deliver as a result of this change." "One of the things we were very excited about was 'wherever we go my games are always with me.' Now, of course your physical games won’t show up that way. The games you bought digitally will. You’ll have to bring your discs with you to have your games with you. Similarly, the sharing library [is something] we won’t be able to deliver at launch."
Whitten said of the new approach, "The way to think about it is it works the way it does with 360. You can give them, loan them, trade them, play them. They will work exactly as they do today."
Beyond that, Microsoft has also expanded upon its intention to ditch region locking. "You could buy a console in any country and use it any country," said Whitten. "You can use any disc in that console."
The Xbox Live VP concluded by saying, "We believe a lot in this digital future. We believe it builds an amazing experience—the ability to have a broader sharing platform and my content coming with me, [but] what we heard is people still wanted more choice… they wanted the familiarity of the physical disc."
Edit: It has also been confirmed that to enable Xbox One to operate properly offline, a day one patch will have to be downloaded.
