This has been a fun tutorial but it's time to wrap it up. In this last part, Todd Kerpelman helps you finish your multiplayer game with some key tips on multiplayer networking: handling out-of-order messages, synchronizing game state and different strategies for synchronization (discrete turns vs. centralized server).
Swift certainly continues to change, sometimes for better and sometimes for worse. In this case, Swift 1.2 is definitely a change for the better. Greg Heo explains the key changes to Swift 1.2. If you do any Swift coding, this is worth a read - some of these changes are long overdue and more than welcome.