iOS9AdaptationTips is an iOS development reference project focused on adapting apps to iOS 9 and OS X 10.11 behavior changes. It explains practical compatibility issues that developers faced when Apple introduced stricter networking and platform requirements. A major topic is App Transport Security, including the shift toward HTTPS and TLS 1.2 for network requests. The repository is useful as a historical migration guide for Objective-C and iOS developers maintaining older apps. ...