Apple has released iOS 6.1 and Xcode 4.6



From TUAW:

Mac and iOS developers get some update love from Apple today, too. That's because Xcode has been bumped up a notch to version 4.6 to bring support for iOS 6.1 along with some other under-the-hood improvements. Weighing in at 1.54 GB, the update is now available via Software Update and the Mac App Store.

  Xcode 4.6 released alongside iOS 6.1