A group calling itself H4LT has leaked the full version of Microsoft's official Xbox One SDK (software development kit) from November 2014.

The leak of the SDK doesn't mean that everyone can start launching games and apps on Xbox One, developers must still register and be approved by Microsoft before doing so. But with the SDK in the hands of the public, there's the possibility that developers could create homebrew apps and modifications for the console further down the line once a hack or exploit is discovered for the Xbox One.