If you're still running CentOS 6, you know for a fact that you need to get to another operating system pronto. The folks CloudLinux/AlmaLinux know this, and have made changes to their open-source lift-and-shift tool, ELevate, so that you can now easily move from CentOS 6 to land on the latest version of just about any RHEL look-alike that you want.
Those who wish to speak at this year's Flock to Fedora conference still have until Monday, April 29 to apply.