Apple has released iOS 6.0.1 which contains improvements and bug fixes, including:

• Fixes a bug that prevents iPhone 5 from installing software updates wirelessly over the air
• Fixes a bug where horizontal lines may be displayed across the keyboard
• Fixes an issue that could cause camera flash to not go off
• Improves reliability of iPhone 5 and iPod touch (5th generation) when connected to encrypted WPA2 Wi-Fi networks
• Resolves an issue that prevents iPhone from using the cellular network in some instances
• Consolidated the Use Cellular Data switch for iTunes Match
• Fixes a Passcode Lock bug which sometimes allowed access to Passbook pass details from lock screen
• Fixes a bug affecting Exchange meetings

iPhone 5 users updating from their devices are required to first install an "updater" application to fix a bug that would otherwise prevent over-the-air updates. Once the updater has been applied users can download iOS 6.0.1 from their devices.