Today, Apple released major updates bearing No. 16.6 for all its systems on its various devices, and although there are no features in this update other than fixing some errors in the system and important security updates, it is said that Apple has significantly improved battery performance in this update.
New in iOS 16.6 according to Apple ...
This update provides important bug fixes and security updates and is recommended for all users.
Before updating, make sure to take a backup copy of the contents of your device, whether on iCloud or on the iTunes application
To update your device, take the following steps ...
Go to Settings -> General -> Software Update, it will show you that an update is available.
You can click on Learn more to view the update details
To download the update, you must connect to Wi-Fi and preferably connect your device to the charger, then press the “Download and Install” button.
The passcode entry screen will appear.
You may see the Terms and Conditions screen, accept them.
After the update is finished, the device will restart. After several steps, the update will be completed.