With iOS 12, you can now set your iPhone or iPad to download and install updates automatically.
With the release of iOS 12, iPhone and iPad users have a new option for getting software updates on their devices. With the automatic updates setting turned on, your iPhone or iPad will download and install the latest updates to iOS 12 and beyond when they become available. If you want to wait on a particular version, you can easily turn off automatic updates with the flip of a switch.
Here's how to turn it on.