"io.k8s.api.storage.v1.VolumeAttachmentSpec": {
        "description": "VolumeAttachmentSpec is the specification of a VolumeAttachment request.",
        "properties": {
          "attacher": {
            "default": "",
            "description": "attacher indicates the name of the volume driver that MUST handle this request. This is the name returned by GetPluginName().",
            "type": "string"
          },
          "nodeName": {

- The CSI volume plugin no longer needs an external attacher for non-attachable CSI volumes. ([#67955](https://github.com/kubernetes/kubernetes/pull/67955), [@jsafrane](https://github.com/jsafrane)) Courtesy of SIG API Machinery, SIG Node, SIG Storage, and SIG Testing

  - The built-in `system:csi-external-provisioner` and `system:csi-external-attacher` cluster roles are deprecated and will not be auto-created in a future release. CSI deployments should provide their own RBAC role definitions with required permissions. ([#69868](https://github.com/kubernetes/kubernetes/pull/69868), [@pohly]( h...

* Bug fixes

- The built-in system:csi-external-provisioner and system:csi-external-attacher cluster roles are removed as of 1.17 release ([#84282](https://github.com/kubernetes/kubernetes/pull/84282), [@tedyu](https://github.com/tedyu))

* Added default ClusterRoles for external CSI components csi-external-provisioner and csi-external-attacher ([#65073](https://github.com/kubernetes/kubernetes/pull/65073), [@davidz627](https://github.com/davidz627))