Apple released a new version of iTunes Extras for the Apple TV.
iTunes Extras offers an extra features for movies you get on a DVD or Blu-ray. iTunes Extras offers featurettes, behind-the-scenes commentary and deleted scenes. All of the these we can watch on HD quallity.
New release has also a new Scenes feature that lets us access favourite scenes without scrolling. Photo gallery Extras has up to 4K resolution now.