[ovirt-users] Is compatibility level change required for upgrading from 4.0 to 4.2?

Hello, we're planning an upgrade of an old 4.0 setup to 4.2, going through 4.1. What we found out is that when upgrading from major to major, cluster and datacenter compatibility upgrade has to be done at the end of the upgrade. This means that we also require to restart our VMs for adapting the compatibility level. Do we require to upgrade the compatibility level to 4.1 before starting the upgrade to 4.2? We have more than 400 vms and only few of them can be restarted at our convenience. -- "E' assurdo impiegare gli uomini di intelligenza eccellente per fare calcoli che potrebbero essere affidati a chiunque se si usassero delle macchine" Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) "Internet è la più grande biblioteca del mondo. Ma il problema è che i libri sono tutti sparsi sul pavimento" John Allen Paulos, Matematico (1945-vivente) Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com&gt;