How to update your iPad | Apple Support

To keep your iPad up to date with the latest features and security enhancements, start by backing up your device. To update wirelessly, plug your iPad into power, connect to Wi-Fi, and check for updates in Settings under General and Software Update. You can either update immediately or schedule it for overnight. To update using a computer, connect your iPad to a Mac or Windows computer with internet access. On a Mac with macOS Catalina or later, use Finder; on macOS Mojave or earlier or a Windows PC, use iTunes. Follow the prompts, accept terms and conditions, and your iPad will restart once the update is complete.

Summary:
– Back up your iPad before updating.
– To update wirelessly, connect to power and Wi-Fi, then check for updates in Settings > General > Software Update.
– Choose to update immediately or schedule for overnight.
– To update using a computer, connect your iPad to a Mac or Windows PC with internet access and open Finder (macOS Catalina or later) or iTunes (macOS Mojave or earlier/Windows).
– Follow the prompts and accept terms and conditions; your iPad will restart when the update is complete.