The full version of Microsoft’s official Xbox One Development Kit was leaked by a group called H4LT last week.
As noted by The Verge, this doesn’t mean we’re suddenly going to see tons of Xbox One apps and games coming from everywhere. Xbox One games and applications still require a development license from Microsoft, so simply possessing the development kit doesn’t mean you can put software on the system. The group has asked people with experience reverse-engineering Windows 8 files to look at the software in the name of “creativity and research,” but says there is no obvious exploit that this software allows.
Since the very early days of the Xbox One, Microsoft has said on repeated occasions that it has plans to open up licensing to allow any interested developer to use their Xbox One as devkit hardware, significantly lowering the barrier of entry for console development, but haven’t made good on that yet.
This leak could either push those plans forward by forcing Microsoft’s hand on the matter or suspend it indefinitely in the name of improved security.