Quote:Code found in a Steam Beta update suggests that Valve and Microsoft are planning to improve cross-play between PCs and Xbox One consoles. The code refers to Xbox-related networking features, which could mean a future version of Steam will make it easier for devs to enable cross-play.

Valve hasn't officially acknowledged the code in question, but it wouldn't be surprising to learn that it's collaborating with Microsoft to help bridge the gap between PC and Xbox players. Microsoft has spent the last few years unifying the platforms by introducing Xbox Play Anywhere, making an Xbox Windows 10 app and revealing initiatives like Project xCloud that will allow people to stream Xbox titles regardless of what device they own.
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We've reached out to Valve to see if the company might offer more information about the Steam Beta update and will update this story if it responds. And it's worth remembering this is an update to the beta version of Steam--this could be something the company tests but never actually releases to the public. With the way things are trending, however, enabling native cross-play between Steam and Xbox seems more than likely.