- Kube-apiserver: Promoted `AuthorizeWithSelectors` feature to beta, which includes field and label selector information from requests in webhook authorization calls. Promoted `AuthorizeNodeWithSelectors` feature to beta, which changes node authorizer behavior to limit requests from node API clients, so that each Node can only get / list / watch its own...

fixLoginRegisterHeight() {\n    const $body = $('body')\n    const $selector = $(`${SELECTOR_LOGIN_BOX}, ${SELECTOR_REGISTER_BOX}`)\n\n    if ($body.hasClass(CLASS_NAME_IFRAME_MODE)) {\n      $body.css('height', '100%')\n      $('.wrapper').css('height', '100%')\n      $('html').css('height', '100%')\n    } else if ($selector.length === 0) {\n      $body.css('height', 'auto')\n      $('html').css('height', 'auto')\n    } else {\n      const boxHeight = $selector.height()\n\n      if ($body.css(this._config.panelAutoHeightMode)...

### API Change

 - For all kinds in the API group version, a spec.selector default value is no longer
 available, because it's incompatible with `kubectl
 apply` and strategic merge patch. You must explicitly set the spec.selector value
 in your manifest. An object with a spec.selector value that does not match the labels in
 its spec.template is invalid.

 - Selector mutation is disabled for all kinds in the

* Improving the performance of Endpoint and EndpointSlice controllers by caching Service Selectors ([#84280](https://github.com/kubernetes/kubernetes/pull/84280), [@gongguan](https://github.com/gongguan))

 .select2-container--default .select2-selection--multiple.text-sm .select2-search.select2-search--inline .select2-search__field {\n  margin-top: 8px;\n}\n\n.text-sm .select2-container--default .select2-selection--multiple .select2-selection__choice, .select2-container--default .select2-selection--multiple.text-sm .select2-selection__choice {\n  margin-top: .4rem;\n}\n\n.select2-container--default.select2-container--focus .select2-selection--single,\n.select2-container--default.select2-container--focus...

- Services implemented a field selector for the ClusterIP and Type fields.

### API Change

  - `create service externalname` ([#34789](https://github.com/kubernetes/kubernetes/pull/34789), [@adohe](https://github.com/adohe))
- `set selector` - update selector labels ([#38966](https://github.com/kubernetes/kubernetes/pull/38966), [@kargakis](https://github.com/kargakis))

  - kube-proxy addon starts to use the label `node.kubernetes.io/kube-proxy-ds-ready` instead of `beta.kubernetes.io/kube-proxy-ds-ready` as its node selector.
  - metadata-proxy addon starts to use the label `cloud.google.com/metadata-proxy-ready` instead of `beta.kubernetes.io/metadata-proxy-ready` as its node selector.

#### Storage