New Features in Xcode 5.1
Xcode 5.1 includes SDKs for OS X v10.8, OS X v10.9, and iOS v7.1 and other enhancements.
Xcode 5.1.1 is a maintenance release addressing reported developer issues and Apple qualification testing.
Xcode 5.1 requires a Mac running OS X 10.8.4 (or later), or OS X 10.9. It includes the following highlighted features:
SDKs for OS X v10.8, OS X v10.9, and iOS v7.1
Updates to the LLVM compiler
Enhancements to Auto Layout constraints and editing tools in Interface Builder
Interface Builder supports the creation of proportional and aspect ratio constraints. Enhancements to the Attributes inspector enable the creation of cross-attribute constraints as, for example, to align the leading edge of one object with the center horizontal position of another. See Adding Layout Constraints to Objects by Control-Dragging and Editing Auto Layout Constraints.
Variables Quick Look in the Xcode debugger supporting custom object types
Developers can now provide Quick Look content for their classes. When an instance of a class is viewed with Quick Look using the variables view or a data tip, the debugger looks for a method named
debugQuickLookObjectin the class implementation. For more details, see Quick Look for Custom Types in the Xcode Debugger.
The Xcode 5.1.1 release is a maintenance release addressing reported developer issues and Apple qualification testing.
For additional details on Xcode releases, see Xcode Release Notes.