Microsoft is rolling out a significant update to the Xbox One today. The summer update brings a number of new features, including Microsoft's Cortana digital assistant for those in the US and UK. Cortana is designed to look and feel just like the Windows 10 variant, and most of the same queries work. You'll also be able to use Cortana to set up parties through Kinect or via a headset, see what friends are playing, and control media playback. Cortana replaces the old Xbox voice commands with "Hey Cortana," but Microsoft is keeping them available if you disable Cortana.