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4.21.12

Download the installer for your operating system or run

oc adm release extract --tools quay.io/openshift-release-dev/ocp-release:4.21.12-x86_64
Team Approvals:

Tests:

Upgrades from:

Untested upgrades: 4.21.3, 4.21.7, 4.21.8

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Changes from 4.21.11

Created: 2026-04-23 11:00:23 +0000 UTC

Image Digest: sha256:809c037c016c7c0cbc83ce459ed344a55d65fa6cc0d3aa4d51e9a2d9d0cf7ffa

Components

FeatureGate Changes

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

Rebuilt images without code change

agent-installer-ui

azure-disk-csi-driver

cluster-config-api

cluster-csi-snapshot-controller-operator

cluster-network-operator

cluster-storage-operator

console

console-operator

gcp-cloud-controller-manager

monitoring-plugin

networking-console-plugin

ovn-kubernetes, ovn-kubernetes-microshift

powervs-block-csi-driver

rhel-coreos, rhel-coreos-10, rhel-coreos-10-extensions, rhel-coreos-extensions

tests


Node Image Info

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