4.21.0-0.okd-scos-2026-03-10-001240

Download installer and client with:

oc adm release extract --tools registry.ci.openshift.org/origin/release-scos:4.21.0-0.okd-scos-2026-03-10-001240

Team Approvals:

Tests:

Blocking jobs
- aws Pending (1 retry) periodic-ci-openshift-release-main-okd-scos-4.21-e2e-aws-ovn
  - Attempt 1 Failed
  - Attempt 2 Pending
Informing jobs
- aws-upgrade Pending (1 retry) periodic-ci-openshift-release-main-okd-scos-4.21-e2e-aws-ovn-upgrade
  - Attempt 1 Failed
  - Attempt 2 Pending
- aws-upgrade-minor Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-upgrade-from-okd-scos-4.20-e2e-aws-ovn-upgrade

Upgrades from:

Changes from 4.21.0-0.okd-scos-2026-03-09-121240

Created: 2026-03-10 00:14:38 +0000 UTC

Image Digest: sha256:203fb264164f3cf27df8f7fdee1a432b47d1cfea83f70c01c86b225673cf8313

Components

Kubectl 1.34.1
Kubernetes 1.34.4
Kubernetes Tests 1.34.1
CentOS Stream CoreOS 10 upgraded from 10.0.20260302-0 to 10.0.20260307-0

cluster-etcd-operator

OCPBUGS-77921: Prefer to remove members where they have another healthy machine in the same failure domain index #1563
Full changelog

console

OCPBUGS-75000: Clean up old session cookies to prevent accumulation #15985
OCPBUGS-77957: [CI] Fix the VolumeSnapshot CRUD flaky test failures #16118
Full changelog

keepalived-ipfailover

OCPBUGS-78048: openshift-enterprise-base: remove subscription-manager, dbus, systemd #226
Full changelog

monitoring-plugin

NO-JIRA: [release-4.21] e2e-monitoring fixing loop on legacy dashboard #828
OCPBUGS-77227: [openshift-4.21] CVE-2026-25639 openshift4/ose-monitoring-plugin-rhel9:Axios affected by Denial of Service via proto Key in mergeConfig #795
Full changelog

stream-coreos, stream-coreos-extensions

COS-3946: Backport rhel-10.2 support to release-4.21 branch #1898
Full changelog

tests

OCPBUGS-78064: Allow test to tolerate running on minimal images #30852
Full changelog

View changelog in Markdown or change previous release:

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