Apple has released iOS 7 beta 6 on Thursday, making the latest version of its new mobile OS build available OTA to those who have been beta testing iOS 7; it can also be downloaded via Apple's Developer Center website. There is some speculation that the update was rushed out to take care of a bug that has been afflicting those testing the previous version of the OS...
Source: http://www.phonearena.com/news/Apple-iOS-7-beta-6-released-to-repair-iTunes-bug_id46459
Source: http://www.phonearena.com/news/Apple-iOS-7-beta-6-released-to-repair-iTunes-bug_id46459