What does EOL mean regarding cPanel/WHM?
When a release of cPanel & WHM no longer exists in any tier and reaches End of Life (EOL), it becomes unsupported. Unsupported versions don’t receive security updates or bug fixes. It is recommended that you update cPanel/WHM as soon as possible to ensure that you continue to receive security updates and bug fixes.
You can find more information on updating cPanel/WHM here: