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4.18.38

Download the installer for your operating system or run

oc adm release extract --tools quay.io/openshift-release-dev/ocp-release:4.18.38-x86_64
Team Approvals:

Tests:

Upgrades from:

Untested upgrades: 4.17.14, 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, 4.17.25, 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, 4.17.36, 4.17.37, 4.17.38, 4.17.40, 4.17.41, 4.17.42, 4.17.43, 4.17.44, 4.17.45, 4.17.46, 4.17.47, 4.17.48, 4.17.49, 4.18.10, 4.18.11, 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, 4.18.24, 4.18.25, 4.18.26, 4.18.28, 4.18.29, 4.18.30, 4.18.31, 4.18.32, 4.18.33, 4.18.34, 4.18.4, 4.18.5, 4.18.6, 4.18.8, 4.18.9

Upgrades to:


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Changes from 4.18.27

Created: 2026-04-17 07:41:43 +0000 UTC

Image Digest: sha256:deacb4132f024a8c364ab8589b7b3f391b887ca4ae92bd4b37df2efa5b1e2145

Components

FeatureGate Changes

FeatureGate Default
Hypershift
Default
SelfManagedHA
DevPreviewNoUpgrade
Hypershift
DevPreviewNoUpgrade
SelfManagedHA
TechPreviewNoUpgrade
Hypershift
TechPreviewNoUpgrade
SelfManagedHA
StreamingCollectionEncodingToJSON
(0 tests)
Enabled
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Enabled
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Enabled
(New)
Enabled
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Enabled
(New)
Enabled
(New)
StreamingCollectionEncodingToProtobuf
(0 tests)
Enabled
(New)
Enabled
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Enabled
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Enabled
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Enabled
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Enabled
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Rebuilt images without code change

agent-installer-api-server

agent-installer-node-agent

agent-installer-utils

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-machine-controllers

azure-cluster-api-controllers

azure-machine-controllers

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

baremetal-operator

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-config-operator

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

console-operator

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

csi-node-driver-registrar

docker-builder

docker-registry

gcp-cluster-api-controllers

gcp-pd-csi-driver

haproxy-router

hyperkube, kube-proxy, pod

hypershift

ibm-vpc-block-csi-driver

ibmcloud-cluster-api-controllers

ibmcloud-machine-controllers

insights-operator

insights-runtime-exporter, insights-runtime-extractor

ironic

ironic-agent

kube-state-metrics

kube-storage-version-migrator

kubevirt-csi-driver

libvirt-machine-controllers

machine-api-operator

machine-config-operator

machine-image-customization-controller

metallb-frr

monitoring-plugin

multus-cni, multus-cni-microshift

networking-console-plugin

oauth-apiserver

oc-mirror

openshift-apiserver

openstack-cluster-api-controllers

openstack-machine-api-provider

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

operator-marketplace

ovirt-csi-driver-operator

ovn-kubernetes, ovn-kubernetes-microshift

powervs-block-csi-driver

prometheus-alertmanager

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

tests

vsphere-cloud-controller-manager

vsphere-cluster-api-controllers

vsphere-csi-driver, vsphere-csi-driver-syncer

vsphere-problem-detector


Node Image Info

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Red Hat Enterprise Linux CoreOS (rhel-coreos)

Package List

Full list (564 packages)

Changed:

Extensions

Full list (0 packages)


Red Hat Enterprise Linux CoreOS base layer: 418.94.202604140044-0 (diff)

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