OSDOCS-20581: Add 4.21.23 z-stream release notes

[JoeAldinger]

Summary

• Adds z-stream release notes for OpenShift 4.21.23
• Jira: https://redhat.atlassian.net/browse/OSDOCS-20581
• Shipment MR: https://gitlab.cee.redhat.com/hybrid-platforms/art/ocp-shipment-data/-/merge_requests/626
• ART Dashboard: https://art-dash.engineering.redhat.com/dashboard/release/openshift-4.21
• Errata: RHSA-2026:34769 / RHBA-2026:34759

Documented

• OCPBUGS-82146
• OCPBUGS-85550
• OCPBUGS-88295
• OCPBUGS-90553
• OCPBUGS-90554

Skipped (not documented)

Key	Reason
OCPBUGS-78330	Internal (Red Hat Employee security)
OCPBUGS-80813	CVE-only / Release Note Not Required
OCPBUGS-80831	CVE-only / Release Note Not Required
OCPBUGS-82900	CVE-only / Release Note Not Required
OCPBUGS-86806	Release Note Not Required
OCPBUGS-87964	Internal (Red Hat Employee security)
OCPBUGS-88297	Release Note Not Required
OCPBUGS-89328	Release Note Not Required
OCPBUGS-91734	Internal (Red Hat Employee security) / Release Note Not Required
OCPBUGS-92012	Release Note Not Required
OCPBUGS-93937	Release Note Not Required
OCPBUGS-95170	Internal (Red Hat Employee security) / Release Note Not Required

Scope notes

• Shipment YAML keys: 17
• Errata Fixes keys: 9
• In YAML but not errata Fixes: OCPBUGS-78330, OCPBUGS-80813, OCPBUGS-80831, OCPBUGS-82900, OCPBUGS-87964, OCPBUGS-91734, OCPBUGS-92012, OCPBUGS-95170

Test plan

• Title and issued date match access.redhat.com
• Primary + RPM advisory links correct
• Vale clean on touched files

Made with Cursor

[openshift-ci-robot]

@JoeAldinger: This pull request references OSDOCS-20581 which is a valid jira issue.

Details

In response to this:

Summary

• Adds z-stream release notes for OpenShift 4.21.23
• Jira: https://redhat.atlassian.net/browse/OSDOCS-20581
• Shipment MR: https://gitlab.cee.redhat.com/hybrid-platforms/art/ocp-shipment-data/-/merge_requests/626
• ART Dashboard: https://art-dash.engineering.redhat.com/dashboard/release/openshift-4.21
• Errata: RHSA-2026:34769 / RHBA-2026:34759

Documented

• OCPBUGS-82146
• OCPBUGS-85550
• OCPBUGS-88295
• OCPBUGS-90553
• OCPBUGS-90554

Skipped (not documented)

Key	Reason
OCPBUGS-78330	Internal (Red Hat Employee security)
OCPBUGS-80813	CVE-only / Release Note Not Required
OCPBUGS-80831	CVE-only / Release Note Not Required
OCPBUGS-82900	CVE-only / Release Note Not Required
OCPBUGS-86806	Release Note Not Required
OCPBUGS-87964	Internal (Red Hat Employee security)
OCPBUGS-88297	Release Note Not Required
OCPBUGS-89328	Release Note Not Required
OCPBUGS-91734	Internal (Red Hat Employee security) / Release Note Not Required
OCPBUGS-92012	Release Note Not Required
OCPBUGS-93937	Release Note Not Required
OCPBUGS-95170	Internal (Red Hat Employee security) / Release Note Not Required

Scope notes

• Shipment YAML keys: 17
• Errata Fixes keys: 9
• In YAML but not errata Fixes: OCPBUGS-78330, OCPBUGS-80813, OCPBUGS-80831, OCPBUGS-82900, OCPBUGS-87964, OCPBUGS-91734, OCPBUGS-92012, OCPBUGS-95170

Test plan

• Title and issued date match access.redhat.com
• Primary + RPM advisory links correct
• Vale clean on touched files

Made with Cursor

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[ocpdocs-previewbot]

🤖 Tue Jul 07 16:04:59 - Prow CI generated the docs preview:

https://114771--ocpdocs-pr.netlify.app/openshift-enterprise/latest/release_notes/ocp-4-21-release-notes.html

[ocpdocs-vale-bot]

🤖 [error] OpenShiftAsciiDoc.NoXrefInModules: Do not include xrefs in modules, only assemblies (exception: release notes modules).

[openshift-ci]

@JoeAldinger: all tests passed!

Full PR test history. Your PR dashboard.

Details

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