*   [alpha] Container Storage Interface
    *   New CSIVolumeSource enables Kubernetes to use external CSI drivers to provision, attach, and mount volumes.
*   [alpha] Raw block volumes
    *   Support for surfacing volumes as raw block devices added to Kubernetes storage system.
    *   Only Fibre Channel volume plugin supports exposes this functionality, in this release.
*   [alpha] Volume resizing

  // More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistent-volumes
  // +optional
  optional PersistentVolumeSpec spec = 2;

  // status represents the current information/status for the persistent volume.
  // Populated by the system.
  // Read-only.
  // More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistent-volumes
  // +optional
  optional PersistentVolumeStatus status = 3;

    public void setRoles_Equal(String roles) {
        setRoles_Term(roles, null);
    }

    public void setRoles_Equal(String roles, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setRoles_Term(roles, opLambda);
    }

    public void setRoles_Term(String roles) {
        setRoles_Term(roles, null);
    }

    public void setRoles_Term(String roles, ConditionOptionCall<TermQueryBuilder> opLambda) {

    * see https://kubernetes.io/docs/user-guide/persistent-volumes/#class-1 for details.
* Reduce verbosity of volume reconciler when attaching volumes ([#36900](https://github.com/kubernetes/kubernetes/pull/36900), [@codablock](https://github.com/codablock))

Storage](https://github.com/kubernetes/enhancements/issues/121), which enables PersistentVolumes to be created with locally attached disks, and not just network volumes.

On the Persistent Volumes side, this release [Prevents deletion of Persistent Volume Claims that are used by a pod](https://github.com/kubernetes/enhancements/issues/498) and [Persistent Volumes that are bound to a Persistent Volume Claim](https://github.com/kubernetes/enhancements/issues/499), making it impossible to delete storage that...

- Some of the in-tree storage drivers indicate support for the `MetricsProvider` interface, but fail to configure this for BlockMode volumes. With a recent change, `Kubelet` will call `GetMetrics()` for BlockMode volumes, and the in-tree drivers that miss the support cause a Go panic. Now the in-tree storage drivers that support BlockMode volumes, will return the Capacity of the volume in the `GetMetrics()` call. ([#101587](https://github.com/kubernetes/kubernetes/pull/101587), [@nixpan...

* [stable] Mount options

  * The ability to specify mount options for volumes is moved from beta to stable.

  * A new `MountOptions` field in the `PersistentVolume` spec is available to specify mount options. This field replaces an annotation.

  * A new `MountOptions` field in the `StorageClass` spec allows configuration of mount options for dynamically provisioned volumes.

### Generic Ephemeral Volumes

#### Volume Plugins

* gitRepo volumes in pods no longer require git 1.8.5 or newer; older git versions are now supported. ([#62394](https://github.com/kubernetes/kubernetes/pull/62394), [@jsafrane](https://github.com/jsafrane))