The 16th of September has only one update relating to Club Penguin so far, and that particular update did not take place in game, either. Instead, it has to do with Club Penguin’s mobile app. On the 16th of September in 2013 the My Penguin iPad app (now known as Club Penguin and for iPhone and iPod Touch too) was updated to version 1.2.1. There were no new features. Instead it only fixed bugs and some improvements to igloo editing, which was the big update in version 1.2.
Want to see and learn more? Check out these pages about the topics mentioned above.