Alongside the release of iOS 7 this morning, Apple has just pushed out Xcode 5.0 to the Mac App Store. The free app includes the SDKs for iOS 7 and Mountain Lion as well as the 64-bit app compiler:
What’s New in Version 5.0
• Includes SDKs for OS X 10.8 Mountain Lion and iOS 7.
• LLVM compiler builds 64-bit apps for iOS 7.
• Automatic Configuration enables services like iCloud and Game Center with one click.
• Test Navigator helps you quickly add, edit, and run unit tests.
• Test Assistants display tests and code side-by-side for test driven development.
• Auto Layout in IB can generate constraints automatically, or allow free-form design.
• Preview Assistant demonstrates your UI in portrait or landscape, for iOS 6 or iOS 7.
• Asset Catalog organizes all your project’s images in a single .xcassets archive.
• Debug Gauges show CPU, memory, iCloud, and OpenGL ES usage at a glance.
• Source Control top-level menu enables context sensitive branching and merging.
• Modules build setting speeds compile times, and enables auto-linking system frameworks.
The update comes in at 1.96GB, which might take awhile with all of the iOS 7 downloading traffic.