According to a report from BGR, a reliable source informed it that Apple has begun testing iOS 6.0.1 with U.S. carriers in anticipation of a release in the coming weeks. Also mentioned in the report is a list of fixes apparently included in the update that address many of the issues users have complained about since the launch of iOS 6. Among them is a fix for the horizontal glitches that some have experienced in the iOS keyboard and folders and a number of other bug fixes for recently reported problems.
The report said the update would also bring a fix for issues with cellular data, improved Wi-Fi, as well as “a problem with the camera’s flash not going off.” Other fixes Apple will release with iOS 6.0.1 are related to iTunes Match, Passbook, and Exchange bugs:

 
In addition, the new software will improve Wi-Fi support, fix cellular data not working in some cases, add a consolidated cellular data switch for iTunes Match, fix a bug that allowed access to Passbook pass details from the lock screen, and also finally fix the bug that caused Exchange meetings to be unexpectedly cancelled for the entire calendar invite group.
The information in the report seems like it’s originating from carrier pre-builds, so plans for the update could change slightly before its public release. The report speculated iOS 6.1 would not be shipping with the iPad mini in November, adding that Apple has just now started testing the update.