### Promoted CSI Ephemeral Volume to Stable

- Fixed an issue where a CSI migrated volume may be prematurely detached when the CSI driver is not running on the node.

- CephRBD volume plugin ( `kubernetes.io/rbd`) was removed in this release. And its csi migration support was also removed, so the `rbd` volume type became non-functional. Alternative is to use RBD CSI driver (https://github.com/ceph/ceph-csi/) in your Kubernetes Cluster. A re-deployment of your application is required to use the new driver if you were using `kubernetes.io/rbd` volume plugin before upgrading cluster...

* Bugfix: csi plugin supporting raw block that does not need attach mounted failed ([#79920](https://github.com/kubernetes/kubernetes/pull/79920), [@cwdsuzhou](https://github.com/cwdsuzhou))

#### Storage

- When PodInfoOnMount is enabled for a CSI driver, the new csi.storage.k8s.io/ephemeral parameter in the volume context allows a driver's NodePublishVolume implementation to determine on a case-by-case basis whether the volume is ephemeral or a normal persistent volume ([#79983](https://github.com/kubernetes/kubernetes/pull/79983), [@pohly](https://github.com/pohly))

* Fixed CSI gRPC connection leak during volume operations. ([#64519](https://github.com/kubernetes/kubernetes/pull/64519), [@vladimirvivien](https://github.com/vladimirvivien))
* Fixed error reporting of CSI volumes attachment. ([#63303](https://github.com/kubernetes/kubernetes/pull/63303), [@jsafrane](https://github.com/jsafrane))

            return value;
        }
    }

    /**
     * ED (Erase in Display) / EL (Erase in Line) parameter (see
     * <a href="https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_sequences">CSI sequence J and K</a>)
     * @see Ansi#eraseScreen(Erase)
     * @see Ansi#eraseLine(Erase)
     */
    public enum Erase {
        FORWARD(0, "FORWARD"),
        BACKWARD(1, "BACKWARD"),
        ALL(2, "ALL");

  by default. The CSI drivers can make use of the `secretRef` values passed in `NodeExpansion`
  request optionally sent by the CSI Client from this release onwards. ([#121303](https://github.com/kubernetes/kubernetes/pull/121303), [@humblec](https://github.com/humblec))

 - Deprecated support for CSI migration of `Ceph RBD volumes`. Users who were relying on Kubernetes' ability

- Remove check for CSI driver running on node for CSI migration ([#115772](https://github.com/kubernetes/kubernetes/pull/115772), [@sunnylovestiramisu](https://github.com/sunnylovestiramisu)) [SIG Apps and Storage]