Hi, This is what documentation says about updating kolla-ansible : "Inside a series, it is usually sufficient to just update the kolla-ansible package, rebuild (if needed) and pull the images, and run kolla-ansible deploy again. Please follow release notes to check if there are any issues to be aware of." So to summarize, the procedure is like this : 1 - update kolla-ansible 2 - Download the latest containers of the used version 3 - In my case publish them in the local registry 4 - launch kolla-ansible deploy My question : Can I do the update directly , especially on the compute nodes, or do I have to empty some of them by moving VMs and execute the update on the empty nodes only, then proceed with the same logic with the rest of the nodes? Regards.