Update iPadOS
When you update to the latest version of iPadOS, your data and settings remain unchanged.
Before you update, set up iPad to back up automatically, or back up your iPad manually.
Update iPad automatically
If you didn’t turn on automatic updates when you first set up your iPad, do the following:
Go to Settings
> General > Software Update.
Tap Customize Automatic Updates (or Automatic Updates). You can choose to automatically download and install updates.
When an update is available, iPad downloads and installs the update overnight while charging and connected to Wi-Fi. You’re notified before an update is installed.
Update iPad manually
At any time, you can check for and install software updates.
Go to Settings > General > Software Update.
The screen shows the currently installed version of iPadOS and whether an update is available.
To turn off automatic updates, go to Settings > General > Software Update > Customize Automatic Updates (or Automatic Updates).
Update using your computer
Do one of the following:
In the Finder sidebar on your Mac: Select your iPad, then click General at the top of the window.
To use the Finder to update your iPad, macOS 10.15 or later is required. With earlier versions of macOS, use iTunes to update your iPad.
In the iTunes app on your Windows PC: Click the iPad button near the top left of the iTunes window, then click Summary.
Click Check for Update.
To install an available update, click Update.
See the Apple Support articles Update to the latest iOS and If you can’t update or restore your iPhone, iPad, or iPod touch.