Xcode Update Adds OS X 10.8.3 Support

Xcode gets OS X 10.8.3 supportApple released Xcode 4.6.1 on Saturday, adding support for the recent OS X Mountain Lion 10.8.3 update. Xcode is Apple's app development environment with tools for creating and debugging code, and building app interfaces.
The 4.6.1 update also fixed a problem where ARC-enabled apps failed to launch on Snow Leopard, and improved performance in the Analyze operation.
Xcode 4.6.1 is free and is available at Apple's Mac App Store.