Please update the 4.18 release notes, Known Issues, to link to the following:  https://source.redhat.com/groups/public/t3/technical_topic_torrent_blog/virtual_machine_live_migrations_and_shut_down_failing_after_upgrading_red_hat_openshift_virtualization_from_41727_to_41813     TL;DR, if you are upgrading to CNV 4.18, it needs to be CNV 4.18.17 or later. If a customer is disconnected, they'll need to refresh their internal repos to get the latest versions.