iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
iPhone OS 3.1 Features: Non-Destructive Video Editing, Voice Control Over Bluetooth and More
- Trimming video clips on the iPhone 3GS now offers the ability to save the edited version as a copy rather than simply overwriting the original file.
- Voice Control over Bluetooth is now available, allowing users to Initiate calls and control music playback via Bluetooth headsets.
- MMS is now enabled by default, but still not supported by AT&T.
- iPhone vibrates when rearranging Home screen icons.
- A "Fraud Protection" toggle is now available in Safari settings.
- iPhone startup and shutdown and app launching times have improved.
- New APIs allow developers of third-party application to access and edit videos.
- OpenGL and Quartz have seen improvements.