* Fix memory cgroup notifications, and reduce associated log spam. ([#63220](https://github.com/kubernetes/kubernetes/pull/63220), [@dashpole](https://github.com/dashpole))

  This is achieved by reducing the TIME-WAIT state of the connection to 1 second, instead of the defaults 60 seconds. This allows kubelet to free the socket, and free conntrack entry and ephemeral port associated. ([#115143](https://github.com/kubernetes/kubernetes/pull/115143), [@aojea](https://github.com/aojea)) [SIG Network and Node]

to the autoscalers in other clusters if required.

### Node Components

#### Autoscaling and Metrics

* Support for custom metrics in the Horizontal Pod Autoscaler is now at v1beta1. The associated metrics APIs (custom metrics and resource/master metrics) were also moved to v1beta1. For more information, see [Before Upgrading](#before-upgrading).

* `metrics-server` is now the recommended way to provide the resource

- Fixed the `observedGeneration` field in pod resize conditions to accurately reflect the associated pod generation when both `InPlacePodVerticalScaling` and `PodObservedGenerationTracking` feature gates are enabled. ([#131157](https://github.com/kubernetes/kubernetes/pull/131157), [@natasha41575](https://github.com/natasha41575))

- Support for Indexed Job: a Job that is considered completed when Pods associated to indexes from 0 to (.spec.completions-1) have succeeded. ([#98812](https://github.com/kubernetes/kubernetes/pull/98812), [@alculquicondor](https://github.com/alculquicondor)) [SIG Apps and CLI]

"repelling" pods from nodes by default, which enables use cases like dedicated nodes and reserving nodes with special features for pods that need those features. We've also added a `NoExecute` taint type that evicts already-running pods, and an associated `tolerationSeconds` field to tolerations to delay the eviction for a specified amount of time. As before, taints are created using `kubectl taint` (but internally they are now represented as a field `taints` in the NodeSpec rather than using the...

- Add a new `vSphere` metric: `cloudprovider_vsphere_vcenter_versions`. Its content shows `vCenter` hostnames with the associated server version. ([#94526](https://github.com/kubernetes/kubernetes/pull/94526), [@Danil-Grigorev](https://github.com/Danil-Grigorev)) [SIG Cloud Provider and Instrumentation]

    /**
     * Adds a CORS handler for the specified origin.
     *
     * @param origin the origin pattern (can be "*" for wildcard)
     * @param handler the CORS handler to associate with the origin
     */
    public void add(final String origin, final CorsHandler handler) {
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded CorsHandler: origin={}", origin);
        }

     * For other types of values, they are registered directly.
     *
     * @param data the RenderData object to register the value in
     * @param key the key to associate with the value
     * @param value the value to register; can be null, Entity, Collection, or any other object
     */
    public static void register(final RenderData data, final String key, final Object value) {

- The following features are now GA, and the associated feature gates are deprecated and will be removed in a future release:
  - CSIPersistentVolume
  - GCERegionalPersistentDisk
  - KubeletPluginsWatcher
  - VolumeScheduling
- kubeadm