Apple has released the second public beta of iOS 9.3 through its Apple Software Beta Program. Released to developers earlier this week, the second beta makes a number of minor changes to Night Shift mode and CarPlay enhancements to Apple Music and Maps, along with adding a new button for Night Shift mode in Control Center. Be sure to check out our updated peek at what’s new in both the latest iOS 9.3 and tvOS 9.2 betas. Users who have already…