iOS 16 is officially available for all iPhone and iPad users as of September 2020.
The new operating system comes with a variety of new features, including customizable iPhone Lock Screens, overhauled notifications, undo button and editing for Messages, a new Home app, iPhone as a Mac webcam, and much more.
Before upgrading your iPhone, you may want to first back it up using iCloud or your computer. Apple shows you how to do that here. https://support.apple.com/en-us/HT203977
Here’s a quick guide on how to install iOS 16 on your iPhone in just a few steps…
1) Connect your device to power. Then connect to the internet using Wi-Fi.
2) Go to Settings > General, then tap Software Update.
3) Choose the software update that you want to install. You can choose to stay on iOS or iPadOS 15 and still get important security updates. Or you can choose the option to upgrade to iOS or iPadOS 16.
4) Tap Install Now. If you see Download and Install instead, tap it to download the update, enter your passcode, then tap Install Now.

That’s it! Updating to iOS 16 is easy and can be done in just a few steps. Enjoy all the new features that iOS 16 has to offer!
iPad is 15.7
I can’t update to iOS 16 or 16.1
Is something wrong with my iPad Pro
11,,inch generation