For metrics `etcd_request_duration_seconds`, `etcd_requests_total` and `etcd_request_errors_total` replace `type` label with API `resource` and `group` label.
  For metric `apiserver_selfrequest_total` add a API `group` label.
  For metrics `apiserver_watch_events_sizes` and `apiserver_watch_events_total` replace API `kind` label with `resource` label.

Indian/Comoro Indian/Kerguelen Indian/Mahe Indian/Maldives Indian/Mauritius Indian/Mayotte Indian/Reunion Iran Israel Jamaica Japan Kwajalein Libya MET MST MST7MDT Mexico/BajaNorte Mexico/BajaSur Mexico/General NZ NZ-CHAT Navajo PRC PST8PDT Pacific/Apia Pacific/Auckland Pacific/Bougainville Pacific/Chatham Pacific/Chuuk Pacific/Easter Pacific/Efate Pacific/Enderbury Pacific/Fakaofo Pacific/Fiji Pacific/Funafuti Pacific/Galapagos Pacific/Gambier Pacific/Guadalcanal Pacific/Guam Pacific/Honolulu Pacific/Johnston...

can be aggregated (served along with) the rest of the Kubernetes API. See [Extending the Kubernetes API with the aggregation layer](https://kubernetes.io/docs/concepts/api-extension/apiserver-aggregation/), [Configure the aggregation layer](https://kubernetes.io/docs/tasks/access-kubernetes-api/configure-aggregation-layer/), and [Setup an extension API server](https://kubernetes.io/docs/tasks/access-kubernetes-api/setup-extension-api-server/).

* [alpha] Adding admissionregistration API...

    - [Scheduling](#scheduling)
  - [Notable Features](#notable-features)
    - [Workloads API (apps/v1beta2)](#workloads-api-appsv1beta2)
      - [API Object Additions and Migrations](#api-object-additions-and-migrations)
      - [Behavioral Changes](#behavioral-changes)
      - [Defaults](#defaults)
    - [Workloads API (batch)](#workloads-api-batch)
      - [CLI Changes](#cli-changes)
      - [Scheduling](#scheduling-1)

- OpenAPI will no longer duplicate these schemas:
  - `io.k8s.apimachinery.pkg.apis.meta.v1.DeleteOptions_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.OwnerReference_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.StatusDetails_v2`

### Kubernetes API Reference Documentation

The API reference is now generated with [`gen-resourcesdocs`](https://github.com/kubernetes-sigs/reference-docs/tree/c96658d89fb21037b7d00d27e6dbbe6b32375837/gen-resourcesdocs) and it is moving to [Kubernetes API](https://docs.k8s.io/reference/kubernetes-api/)

### Kustomize Updates in Kubectl

- The node.k8s.io/v1alpha1 RuntimeClass API is no longer served. Use the node.k8s.io/v1 API version, available since v1.20 ([#103061](https://github.com/kubernetes/kubernetes/pull/103061), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev)) [SIG API Machinery, CLI, Node and Testing]

### API Change

- Add 2 new options for kube-proxy running in winkernel mode. 

done in conjunction with SIG Cloud Provider, is focusing on moving internal APIs that the OpenStack (and other providers) depends upon to staging to guarantee API stability. This work also included abstracting the in-tree Cinder API and refactoring code to the external Cinder provider to remove additional Cinder volume provider code.

Additional work was also done to implement an OpenStack driver for the Cluster API effort lead by SIG Cluster Lifecycle. For the external Cloud-Provider-OpenStack...

- The kube-apiserver will no longer serve APIs that should have been deleted in GA non-alpha levels.  Alpha levels will continue to serve the removed APIs so that CI doesn't immediately break. ([#96525](https://github.com/kubernetes/kubernetes/pull/96525), [@deads2k](https://github.com/deads2k)) [SIG API Machinery]

- The v1 Endpoints API is now officially deprecated (though still fully supported). The API will not be removed, but all users should use the EndpointSlice API instead. ([#130098](https://github.com/kubernetes/kubernetes/pull/130098), [@danwinship](https://github.com/danwinship)) [SIG API Machinery and Network]

### API Change