RHEL Versions Utilized by RHEL CoreOS and OCP

Updated -

Red Hat OpenShift Container Platform (RHOCP) 4 includes a fully managed node operating system, Red Hat Enterprise Linux CoreOS, commonly referred to as RHCOS.

The OpenShift cluster updates RHCOS when applying cluster updates, including sometimes updating between RHEL minor releases. This document details the underlying RHEL minor versions present in currently supported versions of OCP.

RHCOS/OCP Versions RHEL Versions
4.6 RHEL 8.2
4.7.0-4.7.23 RHEL 8.3
4.7.24+ RHEL 8.4
4.8 RHEL 8.4
4.9 RHEL 8.4
4.10 RHEL 8.4
4.11 RHEL 8.6
4.12 RHEL 8.6
4.13 RHEL 9.2
4.14 RHEL 9.2

Note: At the time of build, each OCP z-stream consumes the latest available content from the respective RHEL / RHEL EUS channels.


When is RHEL 9.x planned to be utilized by RHEL CoreOS and OCP?

I'd also like to know when I can download a RHCOS release based on RHEL 9. This blog post mentions that a custom RHCOS 9 image exists, but I haven't found anywhere it can be downloaded.


I came here to see when RHEL9 will be the base of RHCOS. No mention of this or an "Not Yet" statement.