## Upstream Kubernetes on Rocky Linux 9 OS

In our [June 2023](https://docs.rafay.co/releasenotes/2023/june/) monthly release, we added support for lifecycle management of Rafay managed [upstream Kubernetes](https://docs.rafay.co/clusters/upstream/baremetal_vm/overview/) clusters on nodes based on [Rocky Linux](https://rockylinux.org/).

Rafay has supported CentOS as an operating system for upstream Kubernetes clusters. With the [EOL of CentOS](https://endoflife.date/centos), several customers asked us to support Rocky Linux as an **alternative**.