Apple has just released iOS 9.2.1 and Mac OS X 10.11.3, which is good news for most iOS and Mac users. This is the fifth update for Apple iOS 9, this update is very small, only about 40MB. From the what's new of iOS 9.2.1, it is mainly to solve the iOS 9.2 bugs and fix some security issues prior to 9.2. With Apple will hold a conference in March 2016, iOS 9.3 will be accompanied by a new version of the iPhone, so iOS 9.2.1 will probably be the last iOS 9.2 version.

Before you upgrading iOS 9.2.1

After each upgrade is complete, due to the reasons for the new version is not compatible, some app may not be able to use normal. If you have some very important app you must use every day, before you upgrade to ensure that it supports the latest version of the iOS.

Although this is a small upgrade, but there is no guarantee that the upgrade process will not be an accident, so you need connect iPhone to the computer, make an iTunes backup, or use iCloud to do a backup, it is necessary.

About Fireebok Studio

Our article content is to provide solutions to solve the technical issue when we are using iPhone, macOS, WhatsApp and more. If you are interested in the content, you can subscribe to us. And We also develop some high quality applications to provide fully integrated solutions to handle more complex problems. They are free trials and you can access download center to download them at any time.

Articles you may be interested in:

How to Clean up Your iOS and Boost Your Device's Performance?

How to Reclaim Storage Space Taken By Apps on an iPhone?