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4.21.0-0.nightly-2025-08-21-174556

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-2025-08-21-174556
Team Approvals:

Tests:

Upgrades from:


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Changes from 4.20.0-0.nightly-2025-08-18-192426

Created: 2025-08-21 17:55:03 +0000 UTC

Image Digest: sha256:2c9f867863813b20f9f9138399ebff3fbb6a26e3820a3aae975d0e05bd726793

Components

FeatureGate Changes

FeatureGate Default
Hypershift
Default
SelfManagedHA
DevPreviewNoUpgrade
Hypershift
DevPreviewNoUpgrade
SelfManagedHA
TechPreviewNoUpgrade
Hypershift
TechPreviewNoUpgrade
SelfManagedHA
InsightsRuntimeExtractor
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
SigstoreImageVerification
(5 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
StoragePerformantSecurityPolicy
(0 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
UpgradeStatus
(1 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled

Rebuilt images without code change

agent-installer-api-server

agent-installer-utils

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

baremetal-installer, installer, installer-artifacts

cli, cli-artifacts, deployer, tools

cloud-credential-operator

cluster-authentication-operator

cluster-config-api

cluster-csi-snapshot-controller-operator

cluster-etcd-operator

cluster-ingress-operator

cluster-kube-apiserver-operator

cluster-kube-controller-manager-operator

cluster-monitoring-operator

cluster-network-operator

cluster-node-tuning-operator

cluster-openshift-apiserver-operator

cluster-samples-operator

cluster-storage-operator

console

console-operator

egress-router-cni

gcp-cloud-controller-manager

hyperkube, kube-proxy, pod

hypershift

monitoring-plugin

network-tools

oauth-apiserver

oc-mirror

olm-catalogd

olm-operator-controller

openshift-apiserver

openshift-controller-manager

ovn-kubernetes, ovn-kubernetes-microshift

service-ca-operator

tests


Node Image Info

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Package List

Full list (564 packages)

Extensions

Full list (162 packages)


Red Hat Enterprise Linux CoreOS base layer: 9.6.20250815-0

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