OMNI Upgrade

Dell's documentation (https://www.dell.com/support/manuals/us/en/19/dell-openmanage-network/vxrail-fabric-automation-ug-1.3/upgrade-omni-appliance?guid=guid-565fdaf8-b187-4668-8047-f53dfb146fd3&lang=en-us) states that there is an upgrade zip to upgrade the appliance.

However checking the driver page (https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=j6ft9&oscode=naa&productcode=dell-openmanage-network), including the older versions, I only see the zip holding the ova, and not the upgrade files.

Where do we obtain the upgrade zip?