9.3 beta 4 to public tester’s just days after the release of same beta version
for developers and the final version of iOS 9.3 is expected to release to
public next month. The update is
available through the Apple Developer Center or via over-the-air (OTA) update on devices that are running
the previous iOS 9.3 beta 3.
including Night Shift mode, password protection for the Notes app, new 3D
Touch actions for stock apps like Weather, Settings, Compass, enhancements to the Health and Activity apps, iCloud
for iBooks PDF syncing, App Store, iTunes Store and much more.
mode, which also includes a toggle within Control Center. Night Shift
Mode makes the color of your iOS devices display adapt to the time of day,
warm at night and like sunlight during the day and it also prevents
eyestrain and easier to wind down.
- iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone
5s, iPhone 5c, iPhone 5, iPhone 4S
- iPad Air 2, iPad Air, iPad 4, iPad mini, iPad 3, iPad 2
- iPad mini 3, Retina iPad mini (iPad mini 2), iPad mini
- 6th & 5th generation iPod touch
then here is the link that will guide through all the process. How to enable iOS 9.3’s Night Shift mode on older iOS version