4.21.0-0.nightly-2026-04-19-040314

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-2026-04-19-040314

Team Approvals:

Accepted
- QE

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 periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-upgrade-fips-no-nat-instance
- 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 (1 retry) periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-gcp-ovn-rt-upgrade
  - Attempt 1 Failed
  - Attempt 2 Succeeded
- hypershift-ovn-conformance-4.21 Succeeded periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-aws-ovn-conformance
- install-analysis-all Succeeded (1 retry) periodic-ci-openshift-release-main-nightly-4.21-install-analysis-all
  - Attempt 1 Failed
  - Attempt 2 Succeeded
- 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 Failed 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 Failed 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 Failed periodic-ci-openshift-release-main-ci-4.21-e2e-aws-ovn-upgrade-out-of-change
- aws-upi Failed 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 Failed 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 Failed 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 Failed periodic-ci-openshift-release-main-ci-4.21-e2e-gcp-ovn
- gcp-ovn-csi Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-gcp-ovn-csi
- gcp-ovn-rt Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-gcp-ovn-rt
- gcp-ovn-serial Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-gcp-ovn-serial
- gcp-ovn-upgrade-4.21-minor Failed periodic-ci-openshift-release-main-ci-4.21-upgrade-from-stable-4.20-e2e-gcp-ovn-upgrade
- gcp-ovn-upgrade-micro Failed periodic-ci-openshift-release-main-ci-4.21-e2e-gcp-ovn-upgrade
- hypershift-aks-conformance-4.21 Succeeded (1 retry) periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-azure-aks-ovn-conformance
  - Attempt 1 Failed
  - Attempt 2 Succeeded
- hypershift-kubevirt-ovn-conformance-4.21 Failed periodic-ci-openshift-hypershift-release-4.21-periodics-e2e-azure-kubevirt-ovn
- metal-ipi-ovn-dualstack Succeeded 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 Failed 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 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-serial-ovn-dualstack
- metal-ipi-upgrade-ovn-ipv6 Succeeded 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 Succeeded periodic-ci-openshift-release-main-nightly-4.21-metal-ovn-single-node-recert-cluster-rename
- openshift-dedicated-gcp-conformance Succeeded 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 Succeeded 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 Succeeded 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 Failed 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 Failed 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

Upgrades from:

4.21.0-0.nightly-2026-04-18-202122 - F S F S F F S S S S
4.20.0-0.nightly-2026-04-18-202314 (changes) - S F S F S F F S

Upgrades to:

4.22.0-0.nightly-2026-04-19-192951 (changes) - S S S S S S S
4.21.0-0.nightly-2026-04-19-143007 (changes) - F S F S F F S S S S

Loading changelog, this may take a while ...

Changes from 4.21.0-0.nightly-2026-04-18-202122

Created: 2026-04-19 04:05:09 +0000 UTC

Image Digest: sha256:e8b92f1bf908b39893ee9bc727d5d8af4a30a23df8a46638c797417aedc61918

Components

Kubectl 1.34.1
Kubernetes 1.34.6
Kubernetes Tests 1.34.1
Red Hat Enterprise Linux CoreOS 10.2.20260408-0

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 ee65fdf8 sha256:e4fadcb3f789333adda5569a69056866225fd1ee5170c92ab444bbcebf804738
cluster-node-tuning-operator git 9782f0fb sha256:e2d99568dc1ebaa3e49b71d32c0fa51697ae5b6098f98e4ceb7da2e12847cb2c
console git ad5e9758 sha256:8dc5dd0799fb458ee211b044cdb8cc2ec9c872db4ca7c0cec2c11f8b776397df
ironic-machine-os-downloader git 707c2262 sha256:4dfef982eed5e29dfa673ef32c969e5888e607210c945fa91fbb3ba413a0922e
machine-config-operator git 042006de sha256:608cbd5fdc5d387374c975bdeaaba08ffa6c116632b8e5fbb16aac1ec840f90c
monitoring-plugin git 2a248a09 sha256:09e0817cac8e55e3cc1a124b2d3636560415cb21d2248838f2173f68b01c36e7
network-tools git d6717e45 sha256:db0662bf492946b81d4a7432967d4cdda4589570d922d4fb059470533dff9100
networking-console-plugin git 75d2add0 sha256:2edce84f90dc9e0414f5708b807e297bd0ebfd4b9fb2e15c8472c8b3500994c0
rhel-coreos git 10f1a2e7 sha256:42f32c0df6c856c790d57d6819e19e571e4fc143a8f07b42cfa9eb56cd90d5c6
rhel-coreos-10 git 10f1a2e7 sha256:b7d8b208849f9bfa1d2f3cf4ff98670dc4f171465379c30c72adeefc24417af3
rhel-coreos-10-extensions git 10f1a2e7 sha256:e49fc5b7c5e513ef0e81dd5110e76b9c1620a9352da21f51aa707180a9bfd996
rhel-coreos-extensions git 10f1a2e7 sha256:53d3f793088828e4257dd9578daf4a5bda5fa6f5a60fbd9905140a866dbf9501
tests git 34379498 sha256:13d3a6f78cccdf25d261c1e9158c1995439cc44b1e81cd337dff3b263acdae97
tools git 9d9df34c sha256:fad278f95481a922bfa425b783848ff2e0e1b057a0a000ef844d4e184081e3fa

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