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4.21.0-0.okd-scos-2025-09-17-042247

Download installer and client with:

oc adm release extract --tools registry.ci.openshift.org/origin/release-scos:4.21.0-0.okd-scos-2025-09-17-042247
Team Approvals:

Tests:

Upgrades from:

Upgrades to:


Changes from 4.20.0-0.okd-scos-2025-09-16-025651

Created: 2025-09-17 04:24:48 +0000 UTC

Image Digest: sha256:e7b0b3f7260997396740813393350b5f85cdb7dfede7fca59e25ad1174fc8941

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
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)

Rebuilt images without code change

agent-installer-api-server

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

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-machine-controllers

baremetal-installer, installer, installer-artifacts

cli, cli-artifacts, deployer, tools

cloud-credential-operator

cluster-authentication-operator

cluster-capi-operator

cluster-cloud-controller-manager-operator

cluster-config-api

cluster-ingress-operator

cluster-kube-apiserver-operator

cluster-kube-scheduler-operator

cluster-machine-approver

cluster-monitoring-operator

cluster-network-operator

cluster-node-tuning-operator

cluster-policy-controller

console

console-operator

csi-external-attacher

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

kube-state-metrics

machine-api-operator

machine-config-operator

monitoring-plugin

network-tools

networking-console-plugin

oc-mirror

olm-catalogd, olm-operator-controller

openshift-apiserver

openshift-controller-manager

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

ovn-kubernetes, ovn-kubernetes-microshift

powervs-block-csi-driver

prom-label-proxy

prometheus-node-exporter

telemeter

tests

thanos

vsphere-cluster-api-controllers

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


Node Image Info

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Package List

Full list (575 packages)

Changed:

Extensions

Full list (48 packages)


CentOS Stream CoreOS base layer: 10.0.20250827-0

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