4.21.0-0.ci-2026-05-23-000258

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-2026-05-23-000258

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 Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-gcp-ovn-upgrade
- hypershift-e2e-aks Failed (1 retry) periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-aks
  - Attempt 1 Failed
  - Attempt 2 Failed
- 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-2026-05-22-061857

Created: 2026-05-23 00:05:53 +0000 UTC

Image Digest: sha256:1d50480e46190d5ed672dd3966644fe3bb6aa8209a8c70951f9fa20c3d48ab96

Kubectl 1.34.1
Kubernetes 1.34.8
Kubernetes Tests 1.34.1
Red Hat Enterprise Linux CoreOS 10.2.20260521-0

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.

rhel-coreos git 10f1a2e7 sha256:12cf1cc571a29eb6feb5ace05519fe99e77a3ad20e62cd408c67f3c5e8e131c5
rhel-coreos-10 git 10f1a2e7 sha256:084ca9aab8ebcb57192b6a4fdeb7d4f26a2d3cc6d4f9b8cc2478e1c83953b352
rhel-coreos-10-extensions git 10f1a2e7 sha256:d5a5b77725a0dd15559629b8624826ae8ce7883454de9c4f78e89831c75e88b7
rhel-coreos-extensions git 10f1a2e7 sha256:560d2f74b67635fd4ee97a9e4a55a5ad6503b4df5ff7f23cf29524bbd1c6df78

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