Sample code is never a fixed target. It continues to evolve as Apple updates its SDK and the Cocoa Touch libraries. Get involved. You can pitch in by suggesting bug fixes and corrections, as well as by expanding the code that’s on offer. GitHub allows you to fork repositories and grow them with your own tweaks and features, and you can share those back to the main repository using a Pull Request on GitHub. If you come up with a new idea or approach, let us know. We are happy to include great suggestions both at the repository and in the next edition of this book.