- Promote KEP-4191 "Split Image Filesystem" to Beta. ([#126205](https://github.com/kubernetes/kubernetes/pull/126205), [@kwilczynski](https://github.com/kwilczynski)) [SIG Node]
- Promote ProcMountType feature to Beta ([#125259](https://github.com/kubernetes/kubernetes/pull/125259), [@sohankunkerkar](https://github.com/sohankunkerkar)) [SIG Node]

- Promote aggregated discovery endpoint to beta and it will be enabled by default ([#116108](https://github.com/kubernetes/kubernetes/pull/116108), [@Jefftree](https://github.com/Jefftree))
- Promoted `OpenAPIV3` to GA ([#116235](https://github.com/kubernetes/kubernetes/pull/116235), [@Jefftree](https://github.com/Jefftree))

### SIG Openstack

  - The `ValidateProxyRedirects` feature was promoted to Beta and enabled by default. This feature restricts redirect-following from the apiserver to same-host redirects.  If nodes are configured to respond to CRI streaming requests on a different host interface than what the apiserver makes requests...

- Promoted API groups `ValidatingAdmissionPolicy` and `ValidatingAdmissionPolicyBinding` to `v1beta1`. ([#118644](https://github.com/kubernetes/kubernetes/pull/118644), [@alexzielenski](https://github.com/alexzielenski)) [SIG API Machinery, Apps and Testing]

Here is a list of some of the changes that have been made to kubeadm:

- Kubeadm internal config has been promoted to `v1alpha3`:
  - `v1alpha1` has been removed.

- The `CustomResourceDefaulting` feature is promoted to beta and enabled by default. Defaults may be specified in structural schemas via the `apiextensions.k8s.io/v1` API. See https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#specifying-a-structural-schema...

### Authentication
* The authentication.k8s.io API group was promoted to v1([#41058](https://github.com/kubernetes/kubernetes/pull/41058), [@liggitt](https://github.com/liggitt))

### Authorization
* The authorization.k8s.io API group was promoted to v1 ([#40709](https://github.com/kubernetes/kubernetes/pull/40709), [@liggitt](https://github.com/liggitt))

- Promote Cronjobs storage version to `batch/v1`. ([#102363](https://github.com/kubernetes/kubernetes/pull/102363), [@mengjiao-liu](https://github.com/mengjiao-liu))
- Promote `CronJobControllerV2` flag to GA, with removal in 1.23. ([#102529](https://github.com/kubernetes/kubernetes/pull/102529), [@soltysh](https://github.com/soltysh))

### Auth

* [GA] The RBAC API group has been promoted from v1beta1 to v1. No API changes were introduced.

* [beta] Advanced auditing has been promoted from alpha to beta. The webhook and logging policy formats have changed since alpha, and may require modification.