Hello is there or is there coming to tool to smooth upgrades. New version of Rocky linux without fresh install.
No plans to, since Rocky recommends clean installation and restoration of data and/or restoring configuration using tools like Ansible.
There is the ELevate project which allows upgrading Rocky 8 to Rocky 9 for example, but they don’t have a current ability to upgrade to Rocky 10. So far only the ability to upgrade to CentOS 10 or Alma 10, see: ELevate Project