Today the Xbox One got a new system software update, numbered 6.2.13194.0 (xb_rel_1507.150702-2154). The update includes no new user-facing feature, but prepares for the future of the console, as you can read in the official patch notes.

OS version: 6.2.13194.0 (xb_rel_1507.150702-2154) fre
Release date 7/7/2015 New or updated features This release provides updates to Game Streaming and Xbox One Backwards Compatibility functionality, both of which are currently available to our Xbox One preview community. The Xbox team is hard at work building and fine tuning the new Xbox One user experience that will be unveiled to the preview community this Fall.
While backwards compatibility will take a few months to be released, we're only twenty days away from the launch of Windows 10, that will bring game streaming from Xbox One to PC.