Apple has just released iTiunes 10.6.3 to support the shinny iOS 6 which released for developers few minutes ago. So in case you are gonna try iOS 6 on your iOS device, you must download iTunes 10.6.3.
Jailbreakers stay away fro iTunes 10.6.3 until confirming that it’s safe with jailbreaks. iTunes 10.6.3 is available for download to everyone.
Download iTunes for Windows / Mac