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4.21.0-0.nightly-2026-09-02-111437

Manual Override Applied

This release was manually Accepted.


Reason: GCP infrastructure flakes — gcp-ovn-rt-upgrade-4.21-minor is the sole blocking failure across 4 consecutive rejected payloads over 3 days, with different test failures each time (VM provisioning failure, API server i/o timeout, probe deadline exceeded, LB connectivity failure). 13/14 blocking jobs passed. Same cross-release GCP RT flakiness pattern affecting 4.22. No code regression identified. — https://redhat-internal.slack.com/archives/C0AMHBXQW9F/p1788378326915679

Download the installer for your operating system or run

oc adm release extract --tools registry.ci.openshift.org/ocp/release:4.21.0-0.nightly-2026-09-02-111437

Qualifiers (status api):

QE

Tests:

Upgrades from:

Upgrades to:


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Changes from 4.21.0-0.nightly-2026-08-30-205437

Created: 2026-09-02 11:16:19 +0000 UTC

Image Digest: sha256:3efa79cf470729f42fb891d42e168ccf88312a6abc716484b8d656eaeaedef47

Components

Rebuilt images without code change

azure-disk-csi-driver

azure-kms-encryption-provider

baremetal-installer, installer, installer-artifacts

cluster-node-tuning-operator

console

ibmcloud-machine-controllers

machine-config-operator

tests

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


Node Image Info

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Red Hat Enterprise Linux CoreOS (rhel-coreos)

Package List

Full list (565 packages)

Changed:

Extensions

Full list (162 packages)

Red Hat Enterprise Linux CoreOS 10.2 (rhel-coreos-10)

Package List

Full list (489 packages)

Extensions

Full list (207 packages)


Red Hat Enterprise Linux CoreOS base layer: 10.2.20260521-0

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