My github repo is called Programming-iOS-4-Book-Examples, because it\'s the example code from my book \"Programming iOS 4\". Now I\'ve written a new edition of the book, retitle
Given that you can have URL that link branches in a repo, you can still use branches, which INMHO are the natural and easy way for the case .
For example, you can have the following URL for iOS4 example: https://github.com/mattneub/Programming-iOS-Book-Examples/tree/ios4
And https://github.com/mattneub/Programming-iOS-Book-Examples/tree/ios5 for the iOS5 examples, where ios4
and ios5
are your branch names.