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4.21.5

Download the installer for your operating system or run

oc adm release extract --tools quay.io/openshift-release-dev/ocp-release:4.21.5-s390x
Team Approvals:

No tests for this release

Upgrades from:

Untested upgrades: 4.20.13, 4.20.14, 4.20.15, 4.20.16, 4.21.0, 4.21.1, 4.21.2, 4.21.3, 4.21.4

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Changes from 4.21.4

Created: 2026-03-06 13:45:50 +0000 UTC

Image Digest: sha256:42dd488998bf2a911643053a19ed53ad64e8f98522187445bf3b987f419b38c2

Components

FeatureGate Changes

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

Rebuilt images without code change

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

agent-installer-utils

cli, cli-artifacts, deployer, tools

cloud-network-config-controller

cluster-autoscaler

cluster-baremetal-operator

cluster-config-api

cluster-etcd-operator

cluster-ingress-operator

cluster-kube-scheduler-operator

cluster-monitoring-operator

console

console-operator

hypershift

insights-operator

insights-runtime-exporter, insights-runtime-extractor

machine-config-operator

monitoring-plugin

multus-networkpolicy

oauth-server

oc-mirror

ovn-kubernetes, ovn-kubernetes-microshift

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

rhel-coreos, rhel-coreos-extensions


Node Image Info

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Package List

Full list (539 packages)

Changed:

Extensions

Full list (143 packages)


Red Hat Enterprise Linux CoreOS base layer: 9.6.20260303-1

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