- Introduced NodeIPAM support for multiple ClusterCIDRs ([#2593](https://github.com/kubernetes/enhancements/issues/2593)) as an alpha feature.
  Set feature gate `MultiCIDRRangeAllocator=true`, determines whether the `MultiCIDRRangeAllocator` controller can be used, while the kube-controller-manager flag below will pick the active controller.

l/alias. package alias import "unsafe" // AnyOverlap reports whether x and y share memory at any (not necessarily // corresponding) index. The memory beyond the slice length is ignored. func AnyOverlap(x, y []byte) bool { return len(x) > 0 && len(y) > 0 && uintptr(unsafe.Pointer(&x[0])) <= uintptr(unsafe.Pointer(&y[len(y)-1])) && uintptr(unsafe.Pointer(&y[0])) <= uintptr(unsafe.Pointer(&x[len(x)-1])) } // InexactOverlap reports whether x and y share memory at any non-corresponding // index. The memory...

### Bug or Regression

#### 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))

- New "field_validation_request_duration_seconds" metric, measures how long requests take, indicating the value of the fieldValidation query parameter and whether or not server-side field validation is enabled on the apiserver ([#109120](https://github.com/kubernetes/kubernetes/pull/109120), [@kevindelgado](https://github.com/kevindelgado))

     * references.
     */
    void notifyNewValue(@Nullable V newValue);

    /**
     * Returns true if a new value is currently loading, regardless of whether there is an existing
     * value. It is assumed that the return value of this method is constant for any given
     * ValueReference instance.
     */
    boolean isLoading();

    /**

([#75459](https://github.com/kubernetes/kubernetes/pull/75459), [@wk8](https://github.com/wk8))

### API Change

- `wait.PollUntilContextTimeout` function, if immediate is true, the condition
  will be invoked before waiting and guarantees that the condition is invoked at
  least once, regardless of whether the context has been cancelled. ([#118686](https://github.com/kubernetes/kubernetes/pull/118686), [@aojea](https://github.com/aojea))

### Other (Cleanup or Flake)

* The Kubelet now exports metrics that report the assigned (`node_config_assigned`), last-known-good (`node_config_last_known_good`), and active (`node_config_active`) config sources, and a metric indicating whether the node is experiencing a config-related error (`node_config_error`). The config source metrics always report the value `1`, and carry the `node_config_name`, `node_config_uid`, `node_config_resource_version`, and `node_config_kubelet_key labels`,...