Red Hat does support in-place upgrades for RHEL via Leapp, and the process around this has been improving. Granted I know in the past this process was... sub-op

Red Hat does support in-place upgrades for RHEL via Leapp, and the process around this has been improving. Granted I know in the past this process was... sub-optimal and restrictive. It is true that CentOS has not supported this. I am hoping we can achieve a "dnf system-upgrade" process on RHEL, but we'll see how that goes. RHEL 7 -> RHEL 8: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/upgrading_from_rhel_7_to_rhel_8/index https://access.redhat.com/documentation/en-us/red_hat_enterp... RHEL 8 -> RHEL 9: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/upgrading_from_rhel_8_to_rhel_9/index https://access.redhat.com/documentation/en-us/red_hat_enterp... We still recommend having strong backup, rebuild, and automation strategies regardless. I personally would rather spin up a side system, ensure everything works, and nuke the original. That would apply to either test a in-place upgrade or a from-scratch build.