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4.19.21

Download the installer for your operating system or run

oc adm release extract --tools quay.io/openshift-release-dev/ocp-release:4.19.21-x86_64
Team Approvals:

Tests:

Upgrades from:

Untested upgrades: 4.18.22, 4.18.23, 4.18.27, 4.19.10, 4.19.13, 4.19.14, 4.19.15, 4.19.16, 4.19.17, 4.19.3, 4.19.4, 4.19.5, 4.19.7, 4.19.8, 4.19.9

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Changes from 4.19.11

Created: 2025-12-05 06:37:08 +0000 UTC

Image Digest: sha256:7c2001c24aa550aa228cd2d0fc0b5d9ac6656cd4267cd7c156ec758d0687758e

Components

FeatureGate Changes

FeatureGate Default
Hypershift
Default
SelfManagedHA
DevPreviewNoUpgrade
Hypershift
DevPreviewNoUpgrade
SelfManagedHA
TechPreviewNoUpgrade
Hypershift
TechPreviewNoUpgrade
SelfManagedHA
MachineConfigNodes
(13 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
PinnedImages
(5 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
StreamingCollectionEncodingToJSON
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
StreamingCollectionEncodingToProtobuf
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)

Rebuilt images without code change

agent-installer-api-server

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

aws-kms-encryption-provider

aws-machine-controllers

azure-file-csi-driver

azure-machine-controllers

baremetal-installer, installer, installer-artifacts

cli, cli-artifacts, deployer, tools

cloud-credential-operator

cloud-network-config-controller

cluster-autoscaler

cluster-baremetal-operator

cluster-cloud-controller-manager-operator

cluster-config-api

cluster-etcd-operator

cluster-kube-apiserver-operator

cluster-kube-controller-manager-operator

cluster-machine-approver

cluster-monitoring-operator

cluster-network-operator

cluster-node-tuning-operator

cluster-samples-operator

cluster-storage-operator

cluster-update-keys

cluster-version-operator

console

console-operator

csi-external-resizer

csi-external-snapshotter, csi-snapshot-controller

csi-node-driver-registrar

docker-builder

etcd

hyperkube, kube-proxy, pod

hypershift

insights-operator

ironic

ironic-agent

machine-api-operator

machine-config-operator

monitoring-plugin

must-gather

network-interface-bond-cni

network-tools

oauth-apiserver

oauth-server

oc-mirror

olm-catalogd, olm-operator-controller

openshift-apiserver

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

operator-marketplace

ovn-kubernetes, ovn-kubernetes-microshift

prometheus

prometheus-config-reloader, prometheus-operator, prometheus-operator-admission-webhook

tests

vsphere-cluster-api-controllers


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: 9.6.20251203-0

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