4.21.0-0.nightly-2026-05-28-110248

Download the installer for your operating system or run

oc adm release extract --tools registry.ci.openshift.org/ocp/release:4.21.0-0.nightly-2026-05-28-110248

Team Approvals:

Tests:

Blocking jobs
- aws-ovn-serial-1of2 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-serial-1of2
- aws-ovn-serial-2of2 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-serial-2of2
- aws-ovn-single-node-upgrade-4.21-micro Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-aws-upgrade-ovn-single-node
- aws-ovn-upgrade-4.21-micro-fips Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-upgrade-fips
- aws-ovn-upgrade-4.21-micro-fips-no-nat-instance Succeeded (1 retry) periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-upgrade-fips-no-nat-instance
  - Attempt 1 Failed
  - Attempt 2 Succeeded
- azure-ovn-upgrade-4.21-micro Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-azure-ovn-upgrade
- driver-toolkit Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-driver-toolkit
- fips-scan Succeeded periodic-ci-openshift-release-main-nightly-4.21-fips-payload-scan
- gcp-ovn-rt-upgrade-4.21-minor Succeeded periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-gcp-ovn-rt-upgrade
- hypershift-ovn-conformance-4.21 Succeeded (1 retry) periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-aws-ovn-conformance
  - Attempt 1 Failed
  - Attempt 2 Succeeded
- install-analysis-all Succeeded periodic-ci-openshift-release-main-nightly-4.21-install-analysis-all
- metal-ipi-ovn-bm Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-bm
- metal-ipi-ovn-ipv6 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-ipv6
- microshift-ovn-conformance-parallel Succeeded periodic-ci-openshift-microshift-release-4.21-periodics-e2e-aws-ovn-ocp-conformance
- microshift-ovn-conformance-serial Succeeded periodic-ci-openshift-microshift-release-4.21-periodics-e2e-aws-ovn-ocp-conformance-serial
- overall-analysis-all Succeeded (1 retry) periodic-ci-openshift-release-main-nightly-4.21-overall-analysis-all
  - Attempt 1 Failed
  - Attempt 2 Succeeded
Informing jobs
- aws-console Failed periodic-ci-openshift-release-main-nightly-4.21-console-aws
- aws-control-plane-machine-set-operator Succeeded periodic-ci-openshift-cluster-control-plane-machine-set-operator-release-4.21-periodics-e2e-aws
- aws-csi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-csi
- aws-ovn Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-aws-ovn
- aws-ovn-cgroupsv2 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-cgroupsv2
- aws-ovn-fips Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-fips
- aws-ovn-single-node Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-single-node
- aws-ovn-single-node-csi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-single-node-csi
- aws-ovn-single-node-serial Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-single-node-serial
- aws-ovn-single-node-upgrade-minor Succeeded periodic-ci-openshift-release-main-nightly-4.21-upgrade-from-stable-4.20-e2e-aws-upgrade-ovn-single-node
- aws-ovn-upgrade-out-of-change Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-aws-ovn-upgrade-out-of-change
- aws-upi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-upi
- azure-control-plane-machine-set-operator Failed periodic-ci-openshift-cluster-control-plane-machine-set-operator-release-4.21-periodics-e2e-azure
- azure-csi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-azure-csi
- azure-ovn Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-azure-ovn
- azure-ovn-serial Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-azure-ovn-serial
- azure-ovn-upgrade-out-of-change Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-azure-ovn-upgrade-out-of-change
- cnv Succeeded periodic-ci-openshift-release-main-cnv-nightly-4.21-deploy-azure-kubevirt-ovn
- gcp-control-plane-machine-set-operator Failed periodic-ci-openshift-cluster-control-plane-machine-set-operator-release-4.21-periodics-e2e-gcp
- gcp-ovn Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-gcp-ovn
- gcp-ovn-csi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-gcp-ovn-csi
- gcp-ovn-rt Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-gcp-ovn-rt
- gcp-ovn-serial Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-gcp-ovn-serial
- gcp-ovn-upgrade-4.21-minor Succeeded periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-gcp-ovn-upgrade
- gcp-ovn-upgrade-micro Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-gcp-ovn-upgrade
- hypershift-aks-conformance-4.21 Succeeded periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-azure-aks-ovn-conformance
- hypershift-kubevirt-ovn-conformance-4.21 Failed periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-azure-kubevirt-ovn
- metal-ipi-ovn-dualstack Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-dualstack
- metal-ipi-ovn-serial Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-serial-ipv4
- metal-ipi-ovn-serial-virtualmedia-1of2 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-serial-virtualmedia-1of2
- metal-ipi-ovn-serial-virtualmedia-2of2 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-serial-virtualmedia-2of2
- metal-ipi-ovn-upgrade Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-upgrade
- metal-ipi-ovn-upgrade-minor Succeeded periodic-ci-openshift-release-main-nightly-4.21-upgrade-from-stable-4.20-e2e-metal-ipi-ovn-upgrade
- metal-ipi-serial-ipv6 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-serial-ovn-ipv6
- metal-ipi-serial-ovn-dualstack Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-serial-ovn-dualstack
- metal-ipi-upgrade-ovn-ipv6 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-upgrade-ovn-ipv6
- metal-ipi-upgrade-ovn-ipv6-minor Succeeded periodic-ci-openshift-release-main-nightly-4.21-upgrade-from-stable-4.20-e2e-metal-ipi-upgrade-ovn-ipv6
- metal-ovn-single-node-recert-cluster-rename Failed periodic-ci-openshift-release-main-nightly-4.21-metal-ovn-single-node-recert-cluster-rename
- openshift-dedicated-gcp-conformance Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-osd-ccs-gcp
- ovn-proxy Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-proxy
- ovn-single-node-live-iso Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ovn-single-node-live-iso
- qe-perfscale Failed periodic-ci-openshift-eng-ocp-qe-perfscale-ci-main-aws-4.21-nightly-x86-payload-control-plane-6nodes
- rosa-classic-sts-conformance Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-rosa-sts-ovn
- telcov10n-metal-single-node-spoke Failed periodic-ci-openshift-kni-eco-ci-cd-main-nightly-4.21-telcov10n-metal-single-node-spoke
- telcov10n-metal-single-node-spoke-kpis Failed periodic-ci-openshift-kni-eco-ci-cd-main-nightly-4.21-telcov10n-metal-single-node-spoke-kpis
- upgrade-analysis-all Failed (2 retries) periodic-ci-openshift-release-main-nightly-4.21-upgrade-analysis-all
- upgrade-minor-ovn Failed periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-aws-ovn-upgrade
- vsphere-ovn Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-ovn
- vsphere-ovn-csi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-ovn-csi
- vsphere-ovn-serial Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-ovn-serial
- vsphere-ovn-upgrade-micro Succeeded periodic-ci-openshift-release-main-ci-4.21-e2e-vsphere-ovn-upgrade
- vsphere-ovn-upgrade-minor Succeeded periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-vsphere-ovn-upgrade
- vsphere-ovn-upi Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-ovn-upi
- vsphere-ovn-upi-serial Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-ovn-upi-serial
- vsphere-static-ovn Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-static-ovn
Async jobs
- claude-payload-agent Succeeded periodic-ci-openshift-release-main-claude-payload-agent-no-slack

Upgrades from:

4.21.0-0.nightly-2026-05-27-093820 - S S S S S S F S S S F
4.20.0-0.nightly-2026-05-27-183809 (changes) - F S S S S S S

Upgrades to:

4.22.0-0.nightly-2026-06-03-200456 (changes) - P P P P P P P
4.22.0-0.nightly-2026-06-03-121300 (changes) - F F F S S S S S S
4.22.0-0.nightly-2026-06-03-044610 (changes) - S F S S S S S
4.22.0-0.nightly-2026-06-02-214116 (changes) - F F F S S S S S F
4.22.0-0.nightly-2026-06-02-145526 (changes) - S S F S S S S
4.22.0-0.nightly-2026-06-02-080317 (changes) - S S S S S S S
4.22.0-0.nightly-2026-06-01-074812 (changes) - F F F F F S F F F
4.22.0-0.nightly-2026-06-01-013201 (changes) - S S S S S S S
4.22.0-0.nightly-2026-05-31-191517 (changes) - S S F F S S S
4.22.0-0.nightly-2026-05-31-122542 (changes) - S S S F S S S
4.22.0-0.nightly-2026-05-31-061123 (changes) - S S S F F F S
4.22.0-0.nightly-2026-05-31-001416 (changes) - F S S S F S S S
4.22.0-0.nightly-2026-05-30-172459 (changes) - S S S F S S F
4.21.0-0.nightly-2026-06-03-195808 (changes) - P P P P P P P P P P
4.21.0-0.nightly-2026-06-03-102204 (changes) - S S F S S S F F F S S S
4.21.0-0.nightly-2026-06-03-010753 (changes) - S S S S F S F S S S S
4.21.0-0.nightly-2026-06-02-131158 (changes) - F S S S S S S S S S
4.21.0-0.nightly-2026-05-31-143133 (changes) - S F F S F S F F F S S F F
4.21.0-0.nightly-2026-05-29-002242 (changes) - S F S F S S S S F S F S
4.21.0-0.nightly-2026-05-28-164824 (changes) - S F F S F S F S S S S S

Loading changelog, this may take a while ...

Changes from 4.21.0-0.nightly-2026-05-27-093820

Created: 2026-05-28 11:05:53 +0000 UTC

Image Digest: sha256:165a1429a5317550ab0fb531c659f43eb61260ac627dd3e87af350e68077e268

Components

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.

Rebuilt images without code change

agent-installer-ui git 0df91b31 sha256:f0fd03105fbc8bbb63ddf5eb006101b480f8d1f8b2ebe0485da3112160ee790a
cluster-node-tuning-operator git a6f7d8ab sha256:0ef157428ded0886f7f4c8b7a6ed5126428448e35d60ef6734c8b9fc5ad37aae
ironic-machine-os-downloader git 707c2262 sha256:a22cf9b2672f578aa5b5848b196b64a53c526be1877232f708c2b68fb830b5c3
monitoring-plugin git 462c7889 sha256:b1fec204b0acf15cba7b6f26e4903bbbfc8b198c650fef6dd4739c457ef68e6b
networking-console-plugin git 268037d7 sha256:b6455cdc754b9df13d89f14e7be895a0282c037d8396d0c7de715fe247b4cc0d
rhel-coreos git 10f1a2e7 sha256:44c51762affd7ae7001f6f050901c3aa07a04d50250a7532479c744166e96cd8
rhel-coreos-10 git 10f1a2e7 sha256:0fedf5467437f0be2e57bf7ac1a8b38db0a08c0b7e881991be18c4044cd28efc
rhel-coreos-10-extensions git 10f1a2e7 sha256:e6150ca413a8ff3a4c3e86bbea117312a7967c1657b185f038e0912ee3061ac3
rhel-coreos-extensions git 10f1a2e7 sha256:ccf92a9f69c6fcc64747c92e5e6162f316fbec3830e162e870c81fe36ebaf88b
tools git fdf8daba sha256:738523584d108a29b4b88e22089d44bb99975465fd77c42ba462cf67ede7186f

aws-ebs-csi-driver-operator, azure-disk-csi-driver-operator, azure-file-csi-driver-operator, csi-driver-manila-operator, openstack-cinder-csi-driver-operator

OCPBUGS-85572: Add init container for Manila node daemonset #554
Full changelog

cluster-ingress-operator

OCPBUGS-80759: Authorization bypass due to improper HTTP/2 path validation #1441
Full changelog

console

OCPBUGS-86314: Show empty state instead of 403 error for users without projects #16478
Full changelog

console-operator

NETOBSERV-2296: add missing annotations on netobserv quickstart #1096
Full changelog

hypershift

OCPBUGS-86416: add Konflux pipeline definitions for CPO 4.21 #8607
OCPBUGS-86477: [release-4.21] add CP pull-secret watches for in-place propagation #8583
Full changelog

machine-config-operator

OCPBUGS-84481: MCS fallback to latest v3 #5883
Full changelog

Node Image Info

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