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Download installer and client with:

oc adm release extract --tools registry.ci.openshift.org/origin/release-scos:4.21.0-0.okd-scos-nightly-2026-03-03-195116

Team Approvals:

Tests:

• Blocking jobs
  • aws Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-e2e-aws-ovn
• Informing jobs
  • agent-single-node-ipv6 Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-e2e-agent-single-node-ipv6
  • aws-ovn-techpreview Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-e2e-aws-ovn-techpreview
  • aws-upgrade Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-e2e-aws-ovn-upgrade
  • aws-upgrade-minor Failed periodic-ci-openshift-release-main-okd-scos-4.21-upgrade-from-okd-scos-4.20-e2e-aws-ovn-upgrade
  • gcp Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-e2e-gcp
  • vsphere Succeeded periodic-ci-openshift-release-main-okd-scos-4.21-e2e-vsphere-ovn

Upgrades from:

• 4.21.0-0.okd-scos-nightly-2026-03-02-142658 - Success
• 4.20.0-0.okd-scos-2026-02-07-001639 (changes) - Failed

Upgrades to:

• 4.21.0-0.okd-scos-nightly-2026-03-04-075116 (changes) - Success

---

Changes from 4.21.0-0.okd-scos-nightly-2026-03-02-142658

Created: 2026-03-03 19:51:39 +0000 UTC

Image Digest: sha256:54823b7fd25533a559e9c47c2fa36e2774f47f227fb6ee6a4558fe6539f80a01

Components

• Kubectl 1.34.1
• Kubernetes 1.34.4
• Kubernetes Tests 1.34.1
• CentOS Stream CoreOS 10 upgraded from 10.0.20260227-0 to 10.0.20260302-0

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

• network-tools git d6717e45 sha256:4c8056ee23701e6344db6fff73bcc5059828690e94fdee1297ce22bc37f4bd69
• tests git 16f889b2 sha256:71ba6a44cc59811160d463f4270a017880fec6c2944c29ea9dc105fe2b9cef39

agent-installer-utils

• OCPBUGS-77538: (Backport) Override prefilled rendezvousIP #263
• Full changelog

cluster-config-api

• OCPBUGS-76408: Move DynamicConfigurationManager back to TPNU #2703
• Full changelog

cluster-etcd-operator

• OCPBUGS-77097: Wait for revision stability before removing etcd members #1555
• Full changelog

console

• OCPBUGS-77430: run and enforce yarn dedupe #16075
• Full changelog

hypershift

• OCPBUGS-77365: Fix ignition-server pod restarts due to MIRRORED_RELEASE_IMAGE flapping #7834
• Full changelog

insights-runtime-exporter, insights-runtime-extractor

• OCPBUGS-77491: remove dnf cache from the container images #64
• Full changelog

multus-networkpolicy

• OCPBUGS-77489: Clean up dnf cache #100
• Full changelog

ovn-kubernetes, ovn-kubernetes-microshift

• OCPBUGS-77309: Clear stale conntrack UDP entries for nodePorts #3002
• Full changelog

---

View changelog in Markdown or change previous release: 4.21.0-0.okd-scos-nightly-2026-03-03-0226584.21.0-0.okd-scos-nightly-2026-03-02-1426584.21.0-0.okd-scos-nightly-2026-02-28-2125574.21.0-0.okd-scos-nightly-2026-02-28-092557───5.0.0-0.okd-scos-nightly-2026-03-04-1928295.0.0-0.okd-scos-nightly-2026-03-04-0728295.0.0-0.okd-scos-nightly-2026-03-03-1928295.0.0-0.okd-scos-nightly-2026-03-03-0153065.0.0-0.okd-scos-nightly-2026-03-02-1353065.0.0-0.okd-scos-nightly-2026-03-02-015306───5.0.0-0.okd-scos-2026-02-24-143251───4.22.0-0.okd-scos-nightly-2026-03-04-1228054.22.0-0.okd-scos-nightly-2026-03-04-0028054.22.0-0.okd-scos-nightly-2026-03-03-1102474.22.0-0.okd-scos-nightly-2026-03-02-2302474.22.0-0.okd-scos-nightly-2026-03-02-1102474.22.0-0.okd-scos-nightly-2026-03-01-230247───4.22.0-0.okd-scos-2026-03-04-2251104.22.0-0.okd-scos-2026-03-04-1051104.22.0-0.okd-scos-2026-03-03-2251104.22.0-0.okd-scos-2026-03-03-1051104.22.0-0.okd-scos-2026-03-02-2251104.22.0-0.okd-scos-2026-03-02-1051104.22.0-0.okd-scos-2026-03-01-225110───4.21.0-0.okd-scos-2026-03-04-1433374.21.0-0.okd-scos-2026-03-04-0233374.21.0-0.okd-scos-2026-03-03-1433374.21.0-0.okd-scos-2026-03-02-2108534.21.0-0.okd-scos-2026-03-02-090853───4.20.0-0.okd-scos-2026-02-10-1309514.20.0-0.okd-scos-2026-02-07-0016394.20.0-0.okd-scos-2026-02-06-1216394.20.0-0.okd-scos-2026-02-06-0016394.20.0-0.okd-scos-2026-02-05-1216384.20.0-0.okd-scos-2026-02-05-0016374.20.0-0.okd-scos-2026-02-04-121636───4.19.0-0.okd-scos-2025-10-25-0018304.19.0-0.okd-scos-2025-10-24-1218294.19.0-0.okd-scos-2025-10-24-0018284.19.0-0.okd-scos-2025-10-23-1218284.19.0-0.okd-scos-2025-10-23-001828───4.18.0-0.okd-scos-2025-05-27-0825374.18.0-0.okd-scos-2025-05-26-2025374.18.0-0.okd-scos-2025-05-26-0825374.18.0-0.okd-scos-2025-05-23-0333574.18.0-0.okd-scos-2025-05-22-153357───4.17.0-0.okd-scos-2025-02-25-0904554.17.0-0.okd-scos-2025-02-24-2104554.17.0-0.okd-scos-2025-02-24-0904544.17.0-0.okd-scos-2025-02-23-2104544.17.0-0.okd-scos-2025-02-22-211215───4.16.0-0.okd-scos-2025-01-06-1432414.16.0-0.okd-scos-2025-01-04-1456004.16.0-0.okd-scos-2025-01-04-0142364.16.0-0.okd-scos-2025-01-03-1342364.16.0-0.okd-scos-2025-01-03-0142364.16.0-0.okd-scos-2024-12-17-0222464.16.0-0.okd-scos-2024-11-24-1100454.16.0-0.okd-scos-2024-11-23-1818454.16.0-0.okd-scos-2024-11-23-0618454.16.0-0.okd-scos-2024-11-22-1818454.16.0-0.okd-scos-2024-11-22-061845───4.15.0-0.okd-scos-2024-12-16-1913164.15.0-0.okd-scos-2024-01-18-1035224.15.0-0.okd-scos-2024-01-17-2235214.15.0-0.okd-scos-2024-01-17-1035204.15.0-0.okd-scos-2024-01-16-223519───4.15.0-0.okd-2025-06-27-1341344.15.0-0.okd-2025-06-17-1652194.15.0-0.okd-2025-05-02-1402244.15.0-0.okd-2025-04-03-2126204.15.0-0.okd-2025-04-02-1800124.15.0-0.okd-2024-03-27-1109014.15.0-0.okd-2024-03-26-2309014.15.0-0.okd-2024-03-23-1640104.15.0-0.okd-2024-03-23-0440104.15.0-0.okd-2024-03-22-164010───4.21.0-okd-scos.74.21.0-okd-scos.64.21.0-okd-scos.54.21.0-okd-scos.44.21.0-okd-scos.34.21.0-okd-scos.24.21.0-okd-scos.14.21.0-okd-scos.04.20.0-okd-scos.174.20.0-okd-scos.164.20.0-okd-scos.154.20.0-okd-scos.144.20.0-okd-scos.134.20.0-okd-scos.124.20.0-okd-scos.114.20.0-okd-scos.104.20.0-okd-scos.94.20.0-okd-scos.84.20.0-okd-scos.74.20.0-okd-scos.64.20.0-okd-scos.54.20.0-okd-scos.44.20.0-okd-scos.34.20.0-okd-scos.24.20.0-okd-scos.14.20.0-okd-scos.04.19.0-okd-scos.194.19.0-okd-scos.184.19.0-okd-scos.174.19.0-okd-scos.164.19.0-okd-scos.154.19.0-okd-scos.144.19.0-okd-scos.134.19.0-okd-scos.124.19.0-okd-scos.114.19.0-okd-scos.104.19.0-okd-scos.94.19.0-okd-scos.84.19.0-okd-scos.74.19.0-okd-scos.64.19.0-okd-scos.54.19.0-okd-scos.44.19.0-okd-scos.34.19.0-okd-scos.24.19.0-okd-scos.14.19.0-okd-scos.04.18.0-okd-scos.104.18.0-okd-scos.94.18.0-okd-scos.84.18.0-okd-scos.74.18.0-okd-scos.64.18.0-okd-scos.54.18.0-okd-scos.44.18.0-okd-scos.34.18.0-okd-scos.24.18.0-okd-scos.14.18.0-okd-scos.04.17.0-okd-scos.34.17.0-okd-scos.24.17.0-okd-scos.14.17.0-okd-scos.04.16.0-okd-scos.14.16.0-okd-scos.04.16.0-0.okd-scos-2024-09-24-1517474.16.0-0.okd-scos-2024-08-21-1556134.15.0-0.okd-scos-2024-01-18-223523───4.15.0-0.okd-2024-03-10-0101164.15.0-0.okd-2024-02-23-1634104.15.0-0.okd-2024-02-10-0355344.15.0-0.okd-2024-01-27-070424───4.22.0-okd-scos.ec.84.22.0-okd-scos.ec.74.22.0-okd-scos.ec.64.22.0-okd-scos.ec.54.22.0-okd-scos.ec.44.22.0-okd-scos.ec.34.22.0-okd-scos.ec.24.22.0-okd-scos.ec.14.22.0-okd-scos.ec.04.21.0-okd-scos.ec.194.21.0-okd-scos.ec.184.21.0-okd-scos.ec.174.21.0-okd-scos.ec.164.21.0-okd-scos.ec.154.21.0-okd-scos.ec.144.21.0-okd-scos.ec.134.21.0-okd-scos.ec.124.21.0-okd-scos.ec.114.21.0-okd-scos.ec.104.21.0-okd-scos.ec.94.21.0-okd-scos.ec.84.21.0-okd-scos.ec.74.21.0-okd-scos.ec.64.21.0-okd-scos.ec.54.21.0-okd-scos.ec.44.21.0-okd-scos.ec.34.21.0-okd-scos.ec.24.21.0-okd-scos.ec.14.21.0-okd-scos.ec.0

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