v4.0.0

Overall status

GA

Supported CSI spec versions

1.0-1.9

Minimum Kubernetes version

1.20

Recommended Kubernetes version

1.27: For ReadWriteOncePod, CSINodeExpandSecret beta
1.29: For VolumeAttributesClass alpha

Container

docker pull registry.k8s.io/sig-storage/csi-provisioner:v4.0.0

Urgent Upgrade Notes

(No, really, you MUST read this before you upgrade)

• Enable prevent-volume-mode-conversion feature flag by default.

  Volume mode change will be rejected when creating a PVC from a VolumeSnapshot unless the AllowVolumeModeChange annotation has been set to true. Applications relying on volume mode change when creating a PVC from VolumeSnapshot need to be updated accordingly. (#1126, @akalenyu)

Feature status

Feature	Status	Default	Description	Provisioner Feature Gate Required
Snapshots	GA	On	Snapshots and Restore.	No
CSIMigration	GA	On	Migrating in-tree volume plugins to CSI.	No
CSIStorageCapacity	GA	On	Publish capacity information for the Kubernetes scheduler.	No
ReadWriteOncePod	GA	On	Single pod access mode for PersistentVolumes.	No
CSINodeExpandSecret	GA	On	CSI node expansion secret.	No
HonorPVReclaimPolicy	Alpha	Off	Ensures PV honors the Reclaim policy irrespective of deletion order.	Yes
PreventVolumeModeConversion	Beta	On	Prevent unauthorized conversion of source volume mode	--prevent-volume-mode-conversion (no in-tree feature gate)
CrossNamespaceVolumeDataSource	Alpha	Off	Cross-namespace volume data source	--feature-gates=CrossNamespaceVolumeDataSource=true
VolumeAttributesClass	Alpha	Off	Kubernetes VolumeAttributesClass ModifyVolume	--feature-gates=VolumeAttributesClass=true

Full Changelog

https://github.com/kubernetes-csi/external-provisioner/blob/v4.0.0/CHANGELOG/CHANGELOG-4.0.md