Just ahead of E3 2015, the Xbox One is getting a small update today. According to Major Nelson on Twitter, the small update has no new features or content, only that it is "just a few behind the scenes changes to prepare for the future." I can only assume that Microsoft is getting the Xbox One ready for Windows 10. No one knows yet what exactly Microsoft plans to announce for the Xbox One at E3, so this is just my own speculation at the moment.
Read more: Xbox One to get small update today, preparing for possible Windows 10 integration