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4.21.0-okd-scos.ec.0

Download installer and client with:

oc adm release extract --tools quay.io/okd/scos-release:4.21.0-okd-scos.ec.0

Qualifiers (status api): None

Tests:

Upgrades from:

Untested upgrades: 4.21.0-0.okd-scos-2025-09-20-081411, 4.21.0-0.okd-scos-2025-09-20-201411, 4.21.0-0.okd-scos-2025-09-21-083455, 4.21.0-0.okd-scos-2025-09-21-203455, 4.21.0-0.okd-scos-2025-09-22-083455

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Changes from 4.21.0-okd-scos.ec.19

Created: 2025-09-23 14:13:37 +0000 UTC

Image Digest: sha256:d3aadc3fb1bdd21a36b846d47f8082990c8306a32e27eae02099537a4ecf80c2

Release 4.21.0-okd-scos.ec.0 was created from registry.ci.openshift.org/origin/release-scos:4.21.0-0.okd-scos-2025-09-22-083455

Components

FeatureGate Changes

FeatureGate Default
Hypershift
Default
SelfManagedHA
DevPreviewNoUpgrade
Hypershift
DevPreviewNoUpgrade
SelfManagedHA
TechPreviewNoUpgrade
Hypershift
TechPreviewNoUpgrade
SelfManagedHA
CRDCompatibilityRequirementOperator
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
ClusterAPIMachineManagement
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
EventTTL
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
HyperShiftOnlyDynamicResourceAllocation
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
ManagedBootImagesCPMS
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
MutableCSINodeAllocatableCount
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
NewOLMBoxCutterRuntime
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
NoRegistryClusterInstall
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
OSStreams
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
OnPremDNSRecords
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
ProvisioningRequestAvailable
(0 tests)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
Unconditionally Enabled
(Changed)
ExternalOIDCWithUIDAndExtraClaimMappings
(5 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
ImageStreamImportMode
(4 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
ManagedBootImagesAzure
(0 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
ManagedBootImagesvSphere
(6 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
OpenShiftPodSecurityAdmission
(0 tests)
Enabled
(Changed)
Enabled
(Changed)
Enabled Enabled Enabled Enabled
PreconfiguredUDNAddresses
(6 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
SigstoreImageVerificationPKI
(0 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
VolumeAttributesClass
(50 tests)
Disabled
(Changed)
Disabled
(Changed)
Enabled Enabled Enabled Enabled
ExternalOIDC
(9 tests)
Enabled Disabled
(Changed)
Enabled Enabled Enabled Enabled
NewOLMWebhookProviderOpenshiftServiceCA
(0 tests)
Disabled Disabled
(Changed)
Disabled Enabled Disabled Enabled
ClientsAllowCBOR
(0 tests)
Disabled Disabled Enabled
(Changed)
Enabled
(Changed)
Enabled
(Changed)
Enabled
(Changed)
IngressControllerLBSubnetsAWS
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
SetEIPForNLBIngressController
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
BootImageSkewEnforcement
(0 tests)
Disabled Disabled Enabled Enabled Disabled
(Changed)
Disabled
(Changed)
IngressControllerDynamicConfigurationManager
(0 tests)
Disabled Disabled Enabled Enabled Enabled
(Changed)
Enabled
(Changed)
VSphereMixedNodeEnv
(0 tests)
Disabled Disabled Enabled Enabled Disabled
(Changed)
Disabled
(Changed)
DynamicResourceAllocation
(47 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)
NoRegistryClusterOperations
(0 tests)
Enabled
(New)
Enabled
(New)
NodeSwap
(0 tests)
Enabled
(New)
Enabled
(New)
Enabled
(New)
Enabled
(New)

New images

Removed images

Rebuilt images without code change

etcd, installer-etcd-artifacts


Node Image Info

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CentOS Stream CoreOS (stream-coreos)

Package List

Full list (575 packages)

Changed:

Removed:

Added:

Extensions

Full list (48 packages)


CentOS Stream CoreOS base layer: 10.0.20250827-0

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