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 |
|---|---|
| 4.21 | RHEL 9.6 |
| 4.20 | RHEL 9.6 |
| 4.19 | RHEL 9.6 |
| 4.18 | RHEL 9.4 |
| 4.17 | RHEL 9.4 |
| 4.16 | RHEL 9.4 |
| 4.14 | RHEL 9.2 |
| 4.12 | RHEL 8.6 |
Additionally, the following table details EOL OCP versions.
| EOL RHCOS/OCP Versions | RHEL Versions |
|---|---|
| 4.15 | RHEL 9.2 |
| 4.13 | RHEL 9.2 |
| 4.11 | RHEL 8.6 |
| 4.10 | RHEL 8.4 |
| 4.9 | RHEL 8.4 |
| 4.8 | RHEL 8.4 |
| 4.7.24+ | RHEL 8.4 |
| 4.7.0-4.7.23 | RHEL 8.3 |
| 4.6 | RHEL 8.2 |
- Refer to CoreOS Kernel Versions in OCP4 for more details on the CoreOS kernel version in OCP4.
Note: At the time of build, each OCP z-stream consumes the latest available content from the respective RHEL / RHEL EUS channels.
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