9 things to do before installing iOS 15.4

Most people should install Apple's iOS 15.4 update, but there are some steps you need to follow before moving your iPhone from iOS 14 to iOS 15 or your current version of iOS 15 to iOS 15.4.

Apple has finally pushed its iOS 15.4 update to iPhone users and it's available to download now. The software brings new features, bug fixes, enhancements and security patches to iPhone users.

If your iPhone is currently running iOS 15.3.1, you get the shortest changelog and the smallest download. If you're upgrading from an older version of iOS, your iOS 15.4 update will be larger. This is because changes to iOS updates that you skipped are incorporated into your upgrade.

iOS 15.4 is a significant upgrade and most iPhone users should install the software in the near future. That being said, it's hard to predict how Apple's new software will impact your iPhone's performance.

While some of you might see an improvement in your iPhone's performance, others will experience frustrating bugs and performance issues. And that's precisely why it's important to do some prep work before you begin the installation. A little work up front could save you some serious trouble.

If you notice bugs or performance on iOS 15.4, note that you cannot downgrade your iPhone software. Apple stopped signing on iOS 15.3.1.

It also doesn't sign on anything older than iOS 15.3.1. So if you have good experience on iOS 15.3.1, iOS 15.3 or older software, moving your phone to iOS 15.4 is a big deal. Once you've made the move, there's no going back.

With that in mind, we want to help you prepare for the transition from iOS 14 to iOS 15 or your current version of iOS 15 to iOS 15.4. This guide will take you step by step through the process we use before pressing install.