- [Skip Volume Ownership change graduates to GA](#skip-volume-ownership-change-graduates-to-ga)
    - [Allow CSI drivers to opt-in to volume ownership and permission change graduates to GA](#allow-csi-drivers-to-opt-in-to-volume-ownership-and-permission-change-graduates-to-ga)
    - [PodSecurity graduates to Beta](#podsecurity-graduates-to-beta)

    * ACTION REQUIRED: the alpha CRDs are no longer used and drivers will need to be updated to use the beta APIs.
    * The support for `_` in the CSI driver name will be dropped as the CSI Spec does not allow that. 

### Other notable changes

- Metric names for CSI and flexvolume drivers will include the driver name as well as the CSI plugin name. ([#96474](https://github.com/kubernetes/kubernetes/pull/96474), [@mattcary](https://github.com/mattcary)) [SIG Instrumentation and Storage]

### Action Required

* ACTION REQUIRED: Removes defaulting of CSI file system type to ext4. All the production drivers listed under https://kubernetes-csi.github.io/docs/drivers.html were inspected and should not be impacted after this change. If you are using a driver not in that list, please test the drivers on an updated test cluster first. ``` ([#65499](https://github.com/kubernetes/kubernetes/pull/65499), [@krunaljain](https://github.com/krunaljain))

>     greater
>=    greater or equal
</pre>

<p>
In any comparison, the first operand
must be <a href="#Assignability">assignable</a>
to the type of the second operand, or vice versa.
</p>
<p>
The equality operators <code>==</code> and <code>!=</code> apply
to operands of <i>comparable</i> types.

pkg syscall (darwin-arm64), const IPPROTO_DGP = 86
pkg syscall (darwin-arm64), const IPPROTO_DGP ideal-int
pkg syscall (darwin-arm64), const IPPROTO_DIVERT = 254
pkg syscall (darwin-arm64), const IPPROTO_DIVERT ideal-int
pkg syscall (darwin-arm64), const IPPROTO_DONE = 257
pkg syscall (darwin-arm64), const IPPROTO_DONE ideal-int
pkg syscall (darwin-arm64), const IPPROTO_DSTOPTS = 60

* Flex volume plugin is updated to support attach/detach interfaces. It broke backward compatibility. Please update your drivers and implement the new callouts.  ([#41804](https://github.com/kubernetes/kubernetes/pull/41804), [@chakri-nelluri](https://github.com/chakri-nelluri))

## Notable Features

- NFS Drivers are now enabled to collect metrics, StatFS metrics provider is used to collect the metrics. (@brahmaroutu) ([#75805](https://github.com/kubernetes/kubernetes/pull/75805), [@brahmaroutu](https://github.com/brahmaroutu))

- Fixed bug in beta aggregated discovery endpoint which caused CRD discovery information to be temporarily missing when an Aggregated APIService with the same GroupVersion is deleted (and vice versa). ([#116770](https://github.com/kubernetes/kubernetes/pull/116770), [@alexzielenski](https://github.com/alexzielenski))

  // +optional
  optional StorageOSVolumeSource storageos = 27;

  // csi (Container Storage Interface) represents ephemeral storage that is handled by certain external CSI drivers (Beta feature).
  // +optional
  optional CSIVolumeSource csi = 28;

  // ephemeral represents a volume that is handled by a cluster storage driver.