14 DAY TRIAL // Apple has recently released iOS 9.3.1 to fix a number of widespread bugs in the core 9.3 version, and today the company has stopped signing the older 9.2.1 release, which means that downgrading is no longer possible.
In other words, if you’ve already updated to iOS 9.3.1, but for some reason you’re not pleased with it and you want to go back to 9.2.1, you simply can’t because Apple no longer signs this version.
The Cupertino-based company stops providing downgrading support because it wants to prevent users from going back to iOS versions that might include bugs or security issues which could expose their devices, so 9.3.1 is supposed to be the most stable, reliable, and secure edition of the operating system at the moment.
And it’s no secret that users experienced issues with iOS 9.2.1 and even 9.3, with some devices suffering from a widespread bug that crashed apps when opening links. Furthermore, many users reported battery issues and signal problems, so Apple released update 9.3.1 to correct all of them and provide smoother performance on all devices.
iOS 9.3.1 features and improvements
iOS 9.3.1 arrived only 10 days after iOS 9.3 and brought “fixed for an issue that caused apps to be unresponsive after tapping on links in Safari and other apps.”
But the core version 9.3 was the first to bring the long-praised Night Shift mode which automatically adjust display color temperature to warm up the image and thus make it easy to use the iPhone without hurting your eyes during the night.
There are also improvements for the Notes, News, and Health apps, so without a doubt, iOS 9.3.1 is a worthy update. If you’re still on an older version and your device supports 9.3.1, you can always update OTA or via iTunes (but keep in mind that in case you’re afraid of performance issues, you won’t be allowed to downgrade in case you want to go back to 9.2.1).