Question
How do I upgrade to a new version of my operating system? My Operating System vendor has released a newer major version, and/or my current Operating System has reached end-of-life and I would like to ensure my system is updated and secure.
Answer
The cPanel software does not generally support in-place operating system upgrades. Some configurations may be eligible to use the new ELevate utility.
For the most stability, we recommend acquiring a new server with a fresh supported operating system installation upon which cPanel & WHM may be installed. We can even install cPanel & WHM on your new server at your request.
What operating systems are supported by cPanel? | cPanel Docs
Installation Guide - System Requirements | cPanel Docs
Once you have a server with a supported operating system and cPanel & WHM, you may perform a cPanel to cPanel transfer using the Transfer Tool:
How do I Move All cPanel Accounts from One Server to Another?
The ELevate Project does enable in-place upgrades from CentOS 7 to AlmaLinux 8 or Rocky Linux 8; however, we only recommend this tool for experienced system administrators:
How to upgrade from CentOS 7 to AlmaLinux 8 with cPanel ELevate