Deploying macOS Updates to devices in bulk is made simple by using Policies. For more information on how to use Policies, check out Policies Overview. The Policies page leverages the softwareupdate command in our Update Installer utility when deploying updates.
To start adding system updates to your policies, first navigate to the Policies page, select the policy you'd like this added to, and then click on the Updates tab:
From here, you will see the available updates that are pulled from the devices in the policy. You can see if the updates require a restart to apply as well as which Devices are showing this update as needed.
To configure the Update Settings, click the Settings link at the top right:
Here you can choose if you'd like to ignore system updates in App Store (for devices on macOS prior to Big Sur) and how updates that require updates will be deployed to devices.