This update from Apple will improve the functionality of this app. No new features are included.

Support for iOS 9, iPhone 6s, and iPhone 6s Plus

Fix a bug related to device orientation
Optimized for the iPhone 5 and iOS 6

Optimized for the iPhone 5 and iOS 6

- Optimized for the new iPad Retina display
- Anti Aliasing for all devices (4xMSAA)
- The old icon is back

Game Engine optimization