Apple has finished work on iOS 7 which is a pretty big (and long overdue) redesign of the iOS software, but that doesn't mean the work is done. iOS 7 has been given the label of Gold Master, which means it is out of the beta stages, but it still needs one last round of testing by developers; and, more importantly, developers need to test out app updates with the finished iOS software...Source: http://www.phonearena.com/news/iOS-7-Gold-Master-now-available-for-developers_id47331
