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4.18.31

Download the installer for your operating system or run

oc adm release extract --tools quay.io/openshift-release-dev/ocp-release:4.18.31-x86_64
Team Approvals:

Tests:

Upgrades from:

Untested upgrades: 4.17.15, 4.17.16, 4.17.17, 4.17.18, 4.17.19, 4.17.20, 4.17.21, 4.17.22, 4.17.23, 4.17.24, 4.17.26, 4.17.27, 4.17.28, 4.17.29, 4.17.30, 4.17.31, 4.17.32, 4.17.33, 4.17.34, 4.17.35, 4.17.36, 4.17.37, 4.17.38, 4.17.39, 4.17.40, 4.17.41, 4.17.43, 4.18.10, 4.18.11, 4.18.12, 4.18.13, 4.18.14, 4.18.15, 4.18.16, 4.18.17, 4.18.18, 4.18.19, 4.18.20, 4.18.21, 4.18.22, 4.18.23, 4.18.25, 4.18.27, 4.18.4, 4.18.5, 4.18.6, 4.18.8, 4.18.9

Upgrades to:


Loading changelog, this may take a while ...

Changes from 4.18.26

Created: 2026-01-08 15:00:48 +0000 UTC

Image Digest: sha256:64e8c4cbd3199beb1ebb8d6a208cb81fdfe62f4e52d7586033f534d35f981244

Components

FeatureGate Changes

FeatureGate Default
Hypershift
Default
SelfManagedHA
DevPreviewNoUpgrade
Hypershift
DevPreviewNoUpgrade
SelfManagedHA
TechPreviewNoUpgrade
Hypershift
TechPreviewNoUpgrade
SelfManagedHA
StreamingCollectionEncodingToJSON
(0 tests)
Enabled
(New)
Enabled
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Enabled
(New)
Enabled
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Enabled
(New)
Enabled
(New)
StreamingCollectionEncodingToProtobuf
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
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Enabled
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Enabled
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Enabled
(New)

Rebuilt images without code change

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-machine-controllers

azure-machine-controllers

baremetal-installer, installer, installer-altinfra, installer-artifacts

baremetal-runtimecfg

cli, cli-artifacts, deployer, tools

cloud-credential-operator

cloud-network-config-controller

cluster-baremetal-operator

cluster-cloud-controller-manager-operator

cluster-config-api

cluster-etcd-operator

cluster-ingress-operator

cluster-kube-apiserver-operator

cluster-kube-controller-manager-operator

cluster-kube-scheduler-operator

cluster-monitoring-operator

cluster-network-operator

cluster-node-tuning-operator

cluster-samples-operator

cluster-storage-operator

cluster-version-operator

console

csi-external-snapshotter, csi-snapshot-controller, csi-snapshot-validation-webhook

csi-node-driver-registrar

docker-builder

haproxy-router

hyperkube, kube-proxy, pod

hypershift

ibmcloud-cluster-api-controllers

insights-operator

ironic

ironic-agent

kubevirt-csi-driver

machine-config-operator

machine-image-customization-controller

monitoring-plugin

networking-console-plugin

oauth-apiserver

oc-mirror

olm-catalogd

olm-operator-controller

openshift-apiserver

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

operator-marketplace

ovn-kubernetes, ovn-kubernetes-microshift

powervs-block-csi-driver

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

tests


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