Apple issued a new update to iOS 7 today offering bug fixes and other improvements. The update, iOS 7.0.4, specifically notes that it fixes an issue that made FaceTime calls fail for some users. Apple doesn't otherwise detail what the update includes, but it's possible that the company is attempting to sort out some of the small glitches that found their way into iOS 7 without specifically drawing attention to their existence. The update is available now for iPhones, iPads, and iPod touches.