It has been quite some time since RHEL8 was released. Red Hat has officially announced the upgrade support from RHEL6 → RHEL7 & RHEL7 → RHEL8. This is with certain conditions and limitations. One has to read the complete document from Red Hat to understand the caveats about it. As per the official documentation from Red Hat, only Server variant is supported. So, let’s first understand certain important limitations before we could plan the upgrade.