4.21.0-0.ci-2026-05-15-044155

Download the installer for your operating system or run

oc adm release extract --tools registry.ci.openshift.org/ocp/release:4.21.0-0.ci-2026-05-15-044155

Team Approvals:

Tests:

Blocking jobs
- aws-ovn-upgrade-4.21-minor Failed (1 retry) periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-aws-ovn-upgrade
  - Attempt 1 Failed
  - Attempt 2 Failed
- azure-ovn-upgrade-4.21-minor Succeeded periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-azure-ovn-upgrade
- gcp-ovn-upgrade-4.21-micro Failed (1 retry) periodic-ci-openshift-release-main-ci-4.21-e2e-gcp-ovn-upgrade
  - Attempt 1 Failed
  - Attempt 2 Failed
- hypershift-e2e-aks Succeeded (1 retry) periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-aks
  - Attempt 1 Failed
  - Attempt 2 Succeeded
- hypershift-e2e-aws Succeeded periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-aws-ovn
Async jobs
- claude-payload-agent Succeeded periodic-ci-openshift-release-main-claude-payload-agent-no-slack

Upgrades from:

Loading changelog, this may take a while ...

Changes from 4.21.0-0.ci-2026-05-14-021446

Created: 2026-05-15 04:45:07 +0000 UTC

Image Digest: sha256:071e7e3e2d2cd060e9df5e34b5465683ded7fd573f7d3223132d4d14075e24de

Kubectl 1.34.1
Kubernetes upgraded from 1.34.7 to 1.34.8
Kubernetes Tests 1.34.1
Red Hat Enterprise Linux CoreOS 10.2.20260513-0

The CoreOS links above are for the base CoreOS layer used to build the OpenShift node image and do not contain OpenShift components. This is normally only useful to devs working closely with the CoreOS team. For info about the node image, see the Node Image Info section.

ovn-kubernetes git d586f851 sha256:aee2c266bf234e7002491f7b8711f47c1cfe6a4e5f997cc83130e1438a8a8c6f
ovn-kubernetes-microshift git d586f851 sha256:8c3748d0f337bb3aa03e127d8f54ee6ae35f7a3680908fb6166ba0b8dc19260e

OCPBUGS-84169: Handle zero-worker HyperShift clusters in daemonset rollout [4.21 backport] #2972
Full changelog

Loading node image info, this may take a while ...

Unable to show node image info: too many concurrent oc adm release info --rpmdb/--rpmdb-diff operations (limit 16)

View changelog in Markdown or change previous release:

Source code for this page located on github