CentOS is not a rolling release. It has major versions and EOL dates.
> CentOS Stream defines Enterprise Linux.
> CentOS Stream is derived from Fedora Linux. It has a new major version release every three years, and each release is maintained for five years, matching the full support phase of RHEL. CentOS Stream development is open to all, but because CentOS Stream only has updates intended for RHEL, it is maintained by the RHEL team.