- Removed deprecated gogo protocol definitions from `k8s.io/kms/apis` in favor of `google.golang.org/protobuf`. ([#132833](https://github.com/kubernetes/kubernetes/pull/132833), [@saschagrunert](https://github.com/saschagrunert)) [SIG API Machinery, Auth and Testing]

* The kube-apiserver discovery APIs (for example, `/apis`) return information about the API groups being served, and can change dynamically.
During server startup, prior to the server reporting healthy (via `/healthz`), not all API groups may be reported.
Wait for the server to report healthy (via `/healthz`) before depending on the information provided by the discovery APIs.

  The `flowcontrol.apiserver.k8s.io/v1beta3` APIs are deprecated and will no longer be served in v1.32. All existing objects are available via the `v1` APIs. Transition clients and manifests to use the `v1` APIs before upgrading to `v1.32`. ([#121089](https://github.com/kubernetes/kubernetes/pull/121089), [@tkashem](https://github.com/tkashem))

- Fixes the replacement tag in APIs to not be a selector for storage version ([#135197](https://github.com/kubernetes/kubernetes/pull/135197), [@Jefftree](https://github.com/Jefftree)) [SIG API Machinery]

## Changelog since v1.21.0

## What's New (Major Themes)

### Removal of several beta Kubernetes APIs

[Sig API Machinery]: https://github.com/kubernetes/community/tree/master/sig-api-machinery

### SIG Apps

[SIG Apps][] focuses on the Kubernetes APIs and the external tools that are required to deploy and operate Kubernetes workloads.

- External facing APIs in plugin registration and device plugin packages are now available under k8s.io/kubelet/pkg/apis/ ([#83551](https://github.com/kubernetes/kubernetes/pull/83551), [@dims](https://github.com/dims))
### Release

### SIG Cloud Provider

## Changelog since v1.16.3

### Other notable changes

* Fixed issue with addon-resizer using deprecated extensions APIs ([#85793](https://github.com/kubernetes/kubernetes/pull/85793), [@bskiba](https://github.com/bskiba))

- kube-apiserver: