[Tsiklon]

Rocky aim for “bug for bug” compatibility with RHEL.

Red Hat target RHEL to a conservative, enterprise audience who look for a long lived well supported operating system, Rocky (and CentOS before it) court the same audience.

The primary difference being that RHEL is a premium product differentiated by the Red Hat support, training and documentation offering.

Support in so far as Red Hat will work with you to troubleshoot your OS issues, and issue custom patches to the packages they supply that you’re encountering issues with etc etc.

Training in that Red Hat offer many training courses and certifications in the usage and deployment of their many software packages and collections (System Administration, Troubleshooting & Diagnosis, High Availability Cluster administration etc etc)

If you look at Microsoft’s offering for Windows server you’ll see many parallels in the offerings that Red Hat present.