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Download installer and client with:
oc adm release extract --tools quay.io/okd/scos-release:4.21.0-okd-scos.ec.11 Team Approvals:
Tests:
Blocking jobsupgrade Succeeded (1 retries) release-openshift-okd-scos-installer-e2e-aws-upgrade-from-scos-nextupgrade-minor Succeeded (1 retries) release-openshift-okd-scos-installer-e2e-aws-upgrade-from-scos-next Upgrades from:
Untested upgrades:
4.21.0-0.okd-scos-2025-11-29-090822 ,
4.21.0-0.okd-scos-2025-11-29-210822 ,
4.21.0-0.okd-scos-2025-11-30-090822 ,
4.21.0-0.okd-scos-2025-12-01-090823 ,
4.21.0-0.okd-scos-2025-12-01-210823 ,
4.21.0-okd-scos.ec.1 ,
4.21.0-okd-scos.ec.2 ,
4.21.0-okd-scos.ec.3 ,
4.21.0-okd-scos.ec.5 ,
4.21.0-okd-scos.ec.6 ,
4.21.0-okd-scos.ec.7 ,
4.21.0-okd-scos.ec.8 Upgrades to:
Created: 2025-12-03 02:19:20 +0000 UTC
Image Digest: sha256:e23911bb40ede2c33901b494e5f77f1262db7a04f50b69d44a38134914a4341f
Release 4.21.0-okd-scos.ec.11 was created from registry.ci.openshift.org/origin/release-scos:4.21.0-0.okd-scos-2025-12-01-210823
Components
Kubectl 1.34.1
Kubernetes upgraded from 1.34.1 to 1.34.2
Kubernetes Tests 1.34.1
CentOS Stream CoreOS 10.0.20251113-0
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.
FeatureGate Changes
FeatureGate
Default
Default
DevPreviewNoUpgrade
DevPreviewNoUpgrade
TechPreviewNoUpgrade
TechPreviewNoUpgrade
ImageStreamImportMode
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
NewOLMBoxCutterRuntime
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Rebuilt images without code change
AGENT-1216 : HostStage for ‘Copying registry data to disk’ #8423 MGMT-22280 : remove loki dependency from logging op #8458 NO-ISSUE: [master] Bump OCP versions: 4.18 #8456
NO-ISSUE: [master] Bump OCP versions: 4.20 #8454
MGMT-22280 : new logging operators (loki, logging) #8445 NO-ISSUE: Update go.mod Hive dependency to 715614a9f379395dbb5b5091276ec59cacfd0599 #8450
NO-ISSUE: [master] Bump OCP versions: 4.14, 4.19 #8442
MGMT-22193 : Fix dual-stack BMH NIC creation to support multiple NICs per interface #8426 MGMT-22292 : Add url label #8425 And 1 elided commits (e.g. from squash or rebase merges)
Full changelog
API-1835 : test/oauth-server-configobserver: adds a test to show which input resources are required to run the operator and the configObserver controller #785 NO-JIRA: om: add a test for the oauth-apiserver controller #811
Full changelog
TRT-2442 : revert enhance test for config_test.go and let CVO manage CMO networkpolicies” #2766 OCPBUGS-66137 : update ghcr.io/rhobs/prometheus-example-app to 0.5.1 which aligns versions #2762 MON-3940 : Add the collection of MTV migration metrics to Telemetry #2743 MON-4424 : update ghcr.io/rhobs/prometheus-example-app to 0.5.0 #2749 MON-4444 : thanos-ruler: set default retention from UWM Prometheus if present #2759 OCPBUGS-61088 : revert PR #2738, enhance test for config_test.go and let CVO manage CMO networkpolicies #2740 MON-4435 : EndpointSlice migration in UWM Prometheus Operator #2756 NO-ISSUE: update prometheus operator dependencies to v0.87.0 #2752
MON-4434 : Migrate core monitoring ServiceMonitors to EndpointSlice #2745 NO-ISSUE: Bump openshift/library-go #2751
Full changelog
Revert “CNTRLPLANE-1544: manifests: Use restricted-v3 scc for the operator” #670
Full changelog
NO-ISSUE: test(install): validate DynamicResourceAllocation field exists in CRD #7277
CNTRLPLANE-1772 : feat(audit): add persistent audit log feature with automatic snapshots #7241 NO-JIRA: chore: Add more IBM codeowner reviewers #6448
CNTRLPLANE-1956 : add logic to check control-plane to data-plane connectivity #7260 NO-JIRA: build(deps): bump golang.org/x/crypto from 0.37.0/0.41.0 to 0.45.0 #7292
NO-JIRA: fix(build): replace sysctl with getconf in Makefile #7282
CNTRLPLANE-1387 : Remove redundant RHCOSImage flag from Azure CLI #7261 CNTRLPLANE-2050 : feat(azure): update default VM size to Standard_D4s_v5 #7293 CNTRLPLANE-1551 : feat(nodepool): add HAProxy image override via annotation #7187 CNTRLPLANE-1015 : docs: add resource-based control plane autoscaling guide #7275 GCP-196 : Implement GCPPrivateServiceObserver controller #7207 CNTRLPLANE-1893 : Create an ARO HCP override test #7206 CNTRLPLANE-1934 : Add devguyio to core-approvers #7238 NO-JIRA: test(e2e): extend timeouts for Azure and KubeVirt platforms #7288
GCP-232 : refactor(rbac): apply extension-apiserver-authentication rolebinding unconditionally #7259 GCP-251 : feat(install): Add GCP provider support for external-dns with Workload Identity #7274 CNTRLPLANE-1661 : Add endpointPublishingStrategy conf for ingress controller #6974 Full changelog
TRT-2292 : Add support for test isolation #30478 TRT-2454 : allow more grace of disruption for SNO cluster #30544 OCPEDGE-2232 : degraded TNF testing - pdb + MCO reboot validation #30510 NO-ISSUE: Automated - Update synthetic test data #30511
NO-JIRA: Simplify exceptionCallback’s signature #30531
NO-JIRA: Add a new exception for CO’s Available=False in non-upgrade tests #30541
NO-JIRA: Add exception for co/baremetal on Progressing #30542
NO-JIRA: Fix highcpu intervals picking up the wrong e2etest intervals #30503
OCPBUGS-62264 : vSphere snapshot options test should wait for operator to settle #30336 NO-JIRA: net(virt) remove virtctl if not correctly retrieved #30485
TRT-2439 : Revert “TLS 1.3 / Modern profile tests” #30533 NO-JIRA: Add exception for co/kube-scheduler on Progressing #30521
NO-JIRA: Use a more general exception for co/olm becoming unavailable #30514
CORENET-6491 : Delete test namesapces for UDN testing #30500 OCPCLOUD-3042 : Added OTE binary for cpmso #30452 OTA-1585 : Register the CVO tests extension #30316 NO-JIRA: Add exception for co/authentication on scaling test #30517
NO-JIRA: Add more exceptions for CO degraded #30515
OCPNODE-3009 : nested-podman test: use nested-containers SCC #30061 OTA-1643 : Skip a couple of ClusterOperator tests in a multi-upgrade test #30516 And 1 elided commits (e.g. from squash or rebase merges)
Full changelog
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