4.20.0-0.nightly-2026-05-27-135533

Manual Override Applied

This release was manually Accepted.

Reason: Sporadic infrastructure/flaky failures, not a product regression. Zero new PRs — identical code to last accepted payload (4.20.0-0.nightly-2026-05-26-200227). Single blocking job failure (hypershift-ovn-conformance) caused by AWS VPC endpoint quota and a known kubelet CPU accounting flake (1 test failed out of 3,385). AI payload analysis independently confirms no regressions. Different blocking jobs fail across payloads — no systemic pattern. — https://redhat.enterprise.slack.com/archives/C0AMHBXQW9F/p1779914327316679

Download the installer for your operating system or run

oc adm release extract --tools registry.ci.openshift.org/ocp/release:4.20.0-0.nightly-2026-05-27-135533

Team Approvals:

Accepted
- QE

Tests:

Blocking jobs
- aws-ovn-serial-1of2 Succeeded periodic-ci-openshift-release-main-nightly-4.20-e2e-aws-ovn-serial-1of2
- aws-ovn-serial-2of2 Succeeded periodic-ci-openshift-release-main-nightly-4.20-e2e-aws-ovn-serial-2of2
- aws-ovn-single-node-upgrade-4.20-micro Succeeded periodic-ci-openshift-release-main-ci-4.20-e2e-aws-upgrade-ovn-single-node
- aws-ovn-upgrade-4.20-micro-fips Succeeded periodic-ci-openshift-release-main-nightly-4.20-e2e-aws-ovn-upgrade-fips
- azure-ovn-upgrade-4.20-micro Succeeded periodic-ci-openshift-release-main-ci-4.20-e2e-azure-ovn-upgrade
- driver-toolkit Succeeded periodic-ci-openshift-release-main-nightly-4.20-e2e-aws-driver-toolkit
- fips-scan Succeeded periodic-ci-openshift-release-main-nightly-4.20-fips-payload-scan
- gcp-ovn-rt-upgrade-4.20-minor Succeeded periodic-ci-openshift-release-main-ci-4.20-upgrade-from-stable-4.19-e2e-gcp-ovn-rt-upgrade
- hypershift-ovn-conformance-4.20 Failed (1 retry) periodic-ci-openshift-hypershift-release-4.20-periodics-e2e-aws-ovn-conformance
  - Attempt 1 Failed
  - Attempt 2 Failed
- metal-ipi-ovn-bm Succeeded periodic-ci-openshift-release-main-nightly-4.20-e2e-metal-ipi-ovn-bm
- metal-ipi-ovn-ipv6 Succeeded periodic-ci-openshift-release-main-nightly-4.20-e2e-metal-ipi-ovn-ipv6
- microshift-ovn-conformance-parallel Succeeded periodic-ci-openshift-microshift-release-4.20-periodics-e2e-aws-ovn-ocp-conformance
- microshift-ovn-conformance-serial Succeeded periodic-ci-openshift-microshift-release-4.20-periodics-e2e-aws-ovn-ocp-conformance-serial
Async jobs
- claude-payload-agent Succeeded periodic-ci-openshift-release-main-claude-payload-agent-no-slack

Upgrades from:

Upgrades to:

4.21.0-0.nightly-2026-05-28-033143 (changes) - S S F F S S S

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Changes from 4.20.0-0.nightly-2026-05-26-200227

Created: 2026-05-27 13:57:12 +0000 UTC

Image Digest: sha256:6f89c78b7cb15822dd3acba201ef219c83e9e663aaa0c3da7caa5dae411db189

Components

Kubectl 1.33.3
Kubernetes 1.33.12
Kubernetes Tests 1.33.4
Red Hat Enterprise Linux CoreOS 9.6.20260521-1

The CoreOS links above are for the base CoreOS layer used to build the OpenShift node image and do not contain OpenShift components. This is normally only useful to devs working closely with the CoreOS team. For info about the node image, see the Node Image Info section.

Rebuilt images without code change

agent-installer-ui git 1f0fec5e sha256:4e076a25647f415d202a969d3280e2c8fe29f0d76ea8a11b0d31c083ac46805b
console git 2e5d603e sha256:de57f817f26a9778169b7c2fcab98a43fc97626bec49b390e56b0030299a84c0
installer git 13a5f6b9 sha256:970beac116bb130e4529169651d2d403182e7136b785e4c86286854900042698
installer-artifacts git 13a5f6b9 sha256:5f7ecdf36150b9aba2e17be3ed6711d9275443c84eb004469def918aecbeab09
monitoring-plugin git 8e62a3b7 sha256:f7000d769dfabf260227944873dd5e00d946ca7360d070c1bb16bc4a56469d12
networking-console-plugin git c9c1a9f5 sha256:3d02c5bbd93eff16e2fcd94cca05a5fdaf2e6f728352ecb4423acf4bf6d327b9
rhel-coreos git ee943c37 sha256:7f10918e2b2e431179f5e9568b8d416f7cb177ec23d1afff587a4e93ec6c05f1
rhel-coreos-extensions git ee943c37 sha256:bcb2ebce8b770d4f9090b89399898ad7edd49688c8d4f6754a4ce1cc17000866

console-operator

OCPBUGS-84254: Redeploy console pods upon cert rotation #1142
Full changelog

gcp-pd-csi-driver

OCPBUGS-80632: Bump google.golang.org/grpc to v1.79.3 in release 4.20 #103
Full changelog

hypershift

OCPBUGS-83711: fix(kubevirt): filter link-local addresses from EndpointSlice endpoints #8271
Full changelog

machine-config-operator

OCPBUGS-86134: use --delete-if-present for karg removal #6063
OCPBUGS-86313: Apply password only if changes exist #6075
Full changelog

Node Image Info

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Unable to show node image info: too many concurrent oc adm release info --rpmdb/--rpmdb-diff operations (limit 16)

View changelog in Markdown or change previous release:

Source code for this page located on github