1. 苹果文档
下面的文档位于iOS Developer Library （https://developer.apple.com/library/ios/navigation/index.html）中，通过Xcode Documentation and API Reference也可以找到。
What’s New in iOS 7
What’s New in Xcode
Xcode Continuous Integration Guide
iOS 7 UI Transition Guide（TP40013174 1.0.43）
Assets Catalog Help
2. WWDC讲座
下面的讲座视频可以在developer.apple.com找到。
WWDC 2013“Session 400: What's new in Xcode 5”
WWDC 2013“Session 402: What is new in the LLVM compiler”
WWDC 2013“Session 403: From Zero to App Store using Xcode 5”
WWDC 2013“Session 406: Taking control of Auto Layout in Xcode 5”
WWDC 2013“Session 409: Testing in Xcode 5”
WWDC 2013“Session 412: Continuous integration with Xcode 5”
