I don't think it's possible, but you can try to install 4.3.10 which will allow you to bump the cluster version. Why don't you reinstall one of the nodes on EL8 with 4.4 and then reinstall the second one ? Best Regards,Strahil Nikolov On Thu, Apr 28, 2022 at 12:53, Andrei Verovski<andreil1(a)starlett.lv> wrote: Hi, I have quite old nodes from early 4.x era (with CentOS 7.6, cluster compatibility 4.2 level), and oVirt Engine 4.4. 2 nodes have ovirt-release42. Upgrade to oVirt Engine 4.5 engine required cluster compatibility >= 4.3 level. Nodes have been installed with stock CentOS 7.6, not oVirt node image, their upgrade is quite problematic right now. Is it possible to upgrade to cluster compatibility 4.3 while having old 4.2 nodes? Thanks in advance. Andrei _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/L4GODZKGD7W...