RHEL versions used by RHEL CoreOS and OpenShift

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.

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

The following table details the underlying RHEL minor versions present in currently supported versions of OpenShift:

RHCOS/OCP VersionsRHEL Versions
4.22RHEL 9.8
4.21RHEL 9.6
4.20RHEL 9.6
4.19RHEL 9.6
4.18RHEL 9.4
4.16RHEL 9.4
4.14RHEL 9.2
4.12RHEL 8.6

Additionally, the following table details EOL OpenShift versions:

EOL RHCOS/OCP VersionsRHEL Versions
4.17RHEL 9.4
4.15RHEL 9.2
4.13RHEL 9.2
4.11RHEL 8.6
4.10RHEL 8.4
4.9RHEL 8.4
4.8RHEL 8.4
4.7.24+RHEL 8.4
4.7.0-4.7.23RHEL 8.3
4.6RHEL 8.2

Refer to RHEL CoreOS Kernel versions in OpenShift 4 for more details about the Kernel version on each OpenShift 4 version.

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