10 Things to Know About the iPhone 4s iOS 9.2.1 Update

iOS 9.3 for iPhone 4s

The iOS 9.2.1 update might be the last iOS 9.2 update for the iPhone 4s but it won't be the last iOS 9 update. Now that iOS 9.2.1 is out, you can look toward the future and Apple's iOS 9.3 update. 

The iPhone 4s iOS 9.3 update is confirmed and it could be the update that replaces the iOS 9.2.1 update. Unlike iOS 9.2.1, iOS 9.3 will bring brand new features to iPhone users though the iPhone 4s will likely miss out on one of the most exciting additions.

Night Shift, a feature that's supposed to help iPhone users sleep better, might not make it to the iPhone 4s. Disappointing to say the least. 

For more on the iOS 9.3 update and how it will compare to iOS 9.2.1 and iOS 9.2, take a look at our detailed walkthrough.

You'll also want to monitor the iOS 9.3 beta for details about performance if you don't plan to try it yourself.