4.21.0-0.nightly-2026-06-17-053009

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-2026-06-17-053009

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 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 periodic-ci-openshift-release-main-nightly-4.21-install-analysis-all
- metal-ipi-ovn-ipv4 Failed (1 retry) periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-ipv4
  - Attempt 1 Failed
  - Attempt 2 Failed
- metal-ipi-ovn-ipv6 Failed (1 retry) periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-ipv6
  - Attempt 1 Failed
  - Attempt 2 Failed
- 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 Succeeded 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 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-aws-ovn-single-node
- aws-ovn-single-node-csi Failed 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 Succeeded 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 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 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 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-serial-ipv4
- metal-ipi-ovn-serial-virtualmedia-1of2 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-serial-virtualmedia-1of2
- metal-ipi-ovn-serial-virtualmedia-2of2 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-ovn-serial-virtualmedia-2of2
- metal-ipi-ovn-upgrade Failed 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 Failed 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 Failed periodic-ci-openshift-release-main-nightly-4.21-e2e-metal-ipi-upgrade-ovn-ipv6
- metal-ipi-upgrade-ovn-ipv6-minor Failed 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 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
- rosa-classic-sts-conformance Failed (1 retry) periodic-ci-openshift-release-main-nightly-4.21-e2e-rosa-sts-ovn
  - Attempt 1 Failed
  - Attempt 2 Failed
- telcov10n-metal-single-node-spoke Succeeded 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 Succeeded periodic-ci-openshift-release-main-nightly-4.21-e2e-vsphere-ovn-csi
- vsphere-ovn-serial Succeeded 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-2026-06-16-000931 - S S F S S S S S F F
4.20.0-0.nightly-2026-06-16-002015 (changes) - S F S S S S F F

Loading changelog, this may take a while ...

Changes from 4.21.0-0.nightly-2026-06-16-000931

Created: 2026-06-17 05:32:04 +0000 UTC

Image Digest: sha256:42d3b860143e9819e84025631a444943e48af0e062acc9706f6926f10f602bc8

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.

FeatureGate Changes

FeatureGate	Default Hypershift	Default SelfManagedHA	DevPreviewNoUpgrade Hypershift	DevPreviewNoUpgrade SelfManagedHA	TechPreviewNoUpgrade Hypershift	TechPreviewNoUpgrade SelfManagedHA
GatewayAPIWithoutOLM (0 tests)	Disabled	Disabled	Enabled (Changed)	Enabled (Changed)	Enabled (Changed)	Enabled (Changed)

Rebuilt images without code change

agent-installer-api-server git f32dfdad sha256:20c08fb5730a3fcccbbf5b02cd4214bc17d0ed90ccca24ba2d8a18eea2fa0dad
agent-installer-ui git 0b264c7f sha256:ee4ba1505b659bcb049bb080436c8a002ff5422d650c0f50dbd2da3af576c367
agent-installer-utils git dc0bd090 sha256:3fac643abb746b79b89a49fb5d762adac833e3265b83a832cedb3c7254ab6518
ironic-machine-os-downloader git 707c2262 sha256:5eea37532e306092f4df332e1be736fccbcb6b1ec02c4edb45eb273dbade8c9b
machine-config-operator git 59524130 sha256:7c6972a744b470100971dcce952782f201306f0f0f6d72e38bee93b90e81e9cd
monitoring-plugin git f47b7a53 sha256:54bceb8a36ee1104948414e4eb20ec6d0de321de3bd2d10148b8d36e5647a820
network-tools git d6717e45 sha256:f665bd240067c113f13e9052727cbb7247304b7d6b5eb24b1692195d5988c5f4
rhel-coreos git 10f1a2e7 sha256:89dbaea89e940b6f72f41c6bd87da8ecc474030b42bfba81da99aea5a4843c25
rhel-coreos-extensions git 10f1a2e7 sha256:ef72539e6b30af11b86d010b319619cabb1a276ec9e3f8fe2dd3fe0e5f7a0d0f
tests git 9a35db21 sha256:d4db244f9d9be836015baece09a92a102954649d9f4484acad6b3ba3a2bb287c
tools git fdf8daba sha256:0cbc1f648d08c4d00ad594297fea385f1227914e2ae3289f3d1f073d2effb1e3

cluster-config-api

OCPBUGS-78330, OCPBUGS-82146, OCPBUGS-85550, OCPBUGS-88295, OCPBUGS-88297: Promote GatewayAPIWithoutOLM feature gate to TechPreview #2873
Full changelog

cluster-ingress-operator

OCPBUGS-78330, OCPBUGS-82146, OCPBUGS-85550, OCPBUGS-88295, OCPBUGS-88297: Replace OLM-based Istio install with Sail Library #1442
Full changelog

console

OCPBUGS-88358: Allow VolumeSnapshot restore when parent PVC is deleted #16602
Full changelog

networking-console-plugin

OCPBUGS-88313: Trim subnet input in UDN creation form #430
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