iOS 6.1 was released by Apple on Jan 28, 2013. iOS 6.1 is an SDK used for building and developing apps for iPhone and iPad.
iOS 6.1 was released by Apple on Jan 28, 2013. It supports the same devices like ios6 and brought some updates, like larger "Report a Problem" button in Maps and new music controls on the lock screen when you double-press the home button.