Apple has started seeding the iOS 9.3 beta 7 release for developers and public beta testers. This is the last beta release of the OS before its expected public release next week. The iOS 9.3 beta 7 includes a new Night Shift mode that changes the display temperature at night for less eye strain. Another new feature is the Touch ID and password-protected items in the Notes app. Finally, there are new CarPlay features and expanded 3D Touch options on apps, which now includes the Settings menu. Expect more information about the latest iOS release next week at the Apple's March 21...
Source: http://www.gsmarena.com/ios_93_beta_7_is_now_available_to_developers_and_public_beta_testers-news-17241.php