//
  // +optional
  optional bool storageCapacity = 4;

  // fsGroupPolicy defines if the underlying volume supports changing ownership and
  // permission of the volume before being mounted.
  // Refer to the specific FSGroupPolicy values for additional details.
  //
  // This field is immutable.
  //

  //
  // +optional
  // +featureGate=CSIStorageCapacity
  optional bool storageCapacity = 4;

  // fsGroupPolicy defines if the underlying volume supports changing ownership and
  // permission of the volume before being mounted.
  // Refer to the specific FSGroupPolicy values for additional details.
  //
  // This field is immutable.
  //

- Users are now allowed to mutate `FSGroupPolicy` and `PodInfoOnMount` in `CSIDriver.Spec`. ([#116209](https://github.com/kubernetes/kubernetes/pull/116209), [@haoruan](https://github.com/haoruan))