Apple has been testing iOS 9.3 since January 2011. Previously Apple has released iOS 9.2 for testing to the developers and public beta testers. Now Apple is releasing seventh beta of iOS 9.3 to the developers and public beta testers for testing. iOS 9.3 is available as OTA through Apple developer center.
iOS 9.3 includes new features like Night Shift Mode which can help user to viewing better on iPhone, iPad in night. Apple introduced iPad education program, in that program they includes multi-user login.
Apple news App also includes new features like more recommendation, faster update landscape view on iPhone. Apple news also support in-line video. Health including Apple watch style “activity” view.
Apple iOS 9.3 also support multiple Apple watch support. There are new Quick Actions for Weather, Settings, Compass, Health, App Store, and iTunes Store. This will be last version of testing, after that Apple will be planning to release iOS 9.3 to public.