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4.21.0-0.ci-2025-09-17-141925

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-2025-09-17-141925
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Tests:

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Changes from 4.20.0-0.ci-2025-09-17-091256

Created: 2025-09-17 14:25:13 +0000 UTC

Image Digest: sha256:cad1b54f1b1891eac0897547e418da772645b2f6832ae8d429e62fad0cd7884e

Components

FeatureGate Changes

FeatureGate Default
Hypershift
Default
SelfManagedHA
DevPreviewNoUpgrade
Hypershift
DevPreviewNoUpgrade
SelfManagedHA
TechPreviewNoUpgrade
Hypershift
TechPreviewNoUpgrade
SelfManagedHA
GCPClusterHostedDNSInstall
(0 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
OpenShiftPodSecurityAdmission
(0 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
AWSDualStackInstall
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
AzureDualStackInstall
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
CBORServingAndStorage
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
ClientsAllowCBOR
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
ClientsPreferCBOR
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
ClusterAPIMachineManagementVSphere
(0 tests)
Enabled
(New)
Enabled
(New)
GCPDualStackInstall
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)

New images

Rebuilt images without code change

agent-installer-api-server

agent-installer-csr-approver, agent-installer-orchestrator

agent-installer-node-agent

agent-installer-utils

aws-cluster-api-controllers

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

azure-disk-csi-driver

azure-machine-controllers

baremetal-installer, installer, installer-artifacts

baremetal-operator

cli, cli-artifacts, deployer, tools

cloud-credential-operator

cluster-authentication-operator

cluster-baremetal-operator

cluster-capi-operator

cluster-cloud-controller-manager-operator

cluster-config-api

cluster-dns-operator

cluster-etcd-operator

cluster-ingress-operator

cluster-kube-apiserver-operator

cluster-kube-controller-manager-operator

cluster-kube-scheduler-operator

cluster-kube-storage-version-migrator-operator

cluster-machine-approver

cluster-monitoring-operator

cluster-network-operator

cluster-node-tuning-operator

cluster-openshift-apiserver-operator

cluster-openshift-controller-manager-operator

cluster-policy-controller

cluster-storage-operator

cluster-version-operator

console

console-operator

coredns

csi-external-attacher

csi-external-resizer

csi-external-snapshot-metadata

csi-external-snapshotter, csi-snapshot-controller

docker-registry

driver-toolkit

gcp-machine-controllers

gcp-pd-csi-driver-operator

haproxy-router

hyperkube, installer-kube-apiserver-artifacts, kube-proxy, pod

hypershift

insights-operator

ironic

keepalived-ipfailover

kube-rbac-proxy

kube-state-metrics

machine-api-operator

machine-config-operator

monitoring-plugin

multus-networkpolicy

network-tools

networking-console-plugin

oauth-apiserver

oc-mirror

olm-catalogd, olm-operator-controller

openshift-apiserver

openshift-controller-manager

operator-framework-tools, operator-lifecycle-manager, operator-registry

operator-marketplace

ovn-kubernetes, ovn-kubernetes-microshift

powervs-block-csi-driver

prom-label-proxy

prometheus

prometheus-node-exporter

telemeter

tests

thanos

vsphere-cloud-controller-manager

vsphere-cluster-api-controllers

vsphere-csi-driver, vsphere-csi-driver-syncer


Node Image Info

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Package List

Full list (564 packages)

Changed:

Extensions

Full list (162 packages)


Red Hat Enterprise Linux CoreOS base layer: 9.6.20250916-0

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