- It can be used to provide scratch storage that is different from the root disk, for example persistent memory, or a separate local disk on that node.
 - All StorageClass parameters for volume provisioning are supported.
 - All features supported with PersistentVolumeClaims are supported, such as storage capacity tracking, snapshots and restore, and volume resizing.

- The `IngressClassNamespacedParams` feature gate has graduated to beta and is enabled by default. This means IngressClass resource will now have two new fields - `spec.paramters.namespace` and `spec.parameters.scope`. ([#101711](https://github.com/kubernetes/kubernetes/pull/101711), [@hbagdi](https://github.com/hbagdi))

  * You must install the Ceph CSI driver (rbd.csi.ceph.com), v3.5.0 or above, into your Kubernetes cluster.

* NPD: Add e2e test for NPD v0.2. ([#35740](https://github.com/kubernetes/kubernetes/pull/35740), [@Random-Liu](https://github.com/Random-Liu))
* DELETE requests can now pass in their DeleteOptions as a query parameter or a body parameter, rather than just as a body parameter. ([#35806](https://github.com/kubernetes/kubernetes/pull/35806), [@bdbauer](https://github.com/bdbauer))

- kubeadm: prevent overriding of certain kubelet security configuration parameters if the user wished to modify them ([#81903](https://github.com/kubernetes/kubernetes/pull/81903), [@jfbai](https://github.com/jfbai))

- MaxUnavailable for StatefulSets, allows faster RollingUpdate by taking down more than 1 pod at a time. The number of pods you want to take down during a RollingUpdate is configurable using maxUnavailable parameter. ([#82162](https://github.com/kubernetes/kubernetes/pull/82162), [@krmayankk](https://github.com/krmayankk))

- Automatic allocation of NodePorts for services with type LoadBalancer can now be disabled by setting the (new) parameter

  Ginkgo V2 doesn't accept go test's `-parallel` flags to parallelize Ginkgo specs, please switch to use `ginkgo -p` or...

* Parameter keys in a StorageClass `parameters` map may not use the `kubernetes.io` or `k8s.io` namespaces. ([#41837](https://github.com/kubernetes/kubernetes/pull/41837), [@liggitt](https://github.com/liggitt))

* DELETE requests can now pass in their DeleteOptions as a query parameter or a body parameter, rather than just as a body parameter. ([#35806](https://github.com/kubernetes/kubernetes/pull/35806), [@bdbauer](https://github.com/bdbauer))