Defer Apple OS Updates

What

Apple allow users to update devices themselves, however it may be desired to delay an update, perhaps due to some incompatibility that is not yet resolved.

When/Why

When Apple release updates, devices report these updates to the users of the device; allowing them to trigger that update as soon as they desire. Apple provide a method to ‘Defer’ updates. Updates deferred will no longer be visible to the user, may be deferred up to a maximum of 90 days, yet MDM may still push updates during the deferred timeframe.

As described, this only blocks users from using Software Updates.  Preventing users from using macOS Installer Applications can be achieved with Fileset to block Apple Install macOS applications

How

The method of deferral varies between macOS and mobile devices, but both are pushed using a Configuration Profile.

iOS/iPadOS

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macOS