- kubeadm deprecates the use of the hyperkube image ([#85094](https://github.com/kubernetes/kubernetes/pull/85094), [@rosti](https://github.com/rosti))
## Metrics Changes
### Added metrics
- Add `scheduler_goroutines` metric to track number of kube-scheduler binding and prioritizing goroutines ([#83535](https://github.com/kubernetes/kubernetes/pull/83535), [@wgliang](https://github.com/wgliang))

### Serverside Apply - Beta 2

Server-side Apply was promoted to Beta in 1.16, but is now introducing a second Beta in 1.18. This new version will track and manage changes to fields of all new Kubernetes objects, allowing you to know what changed your resources and when.

### Extending Ingress with and replacing a deprecated annotation with IngressClass

- ACTION_REQUIRED

* Fixed issue 63608, which is that under rare circumstances the ResourceQuota admission controller could lose track of an request in progress and time out after waiting 10 seconds for a decision to be made. ([#64598](https://github.com/kubernetes/kubernetes/pull/64598), [@MikeSpreitzer](https://github.com/MikeSpreitzer))

- cloud.google.com/go/speech: v1.15.0
- cloud.google.com/go/storagetransfer: v1.8.0
- cloud.google.com/go/talent: v1.5.0
- cloud.google.com/go/texttospeech: v1.6.0
- cloud.google.com/go/tpu: v1.5.0
- cloud.google.com/go/trace: v1.9.0
- cloud.google.com/go/translate: v1.7.0
- cloud.google.com/go/video: v1.15.0
- cloud.google.com/go/videointelligence: v1.10.0
- cloud.google.com/go/vision/v2: v2.7.0
- cloud.google.com/go/vmmigration: v1.6.0

- Registered metric `apiserver_request_body_size_bytes` to track the size distribution of requests by `resource` and `verb`. ([#120474](https://github.com/kubernetes/kubernetes/pull/120474), [@YaoC](https://github.com/YaoC)) [SIG API Machinery and Instrumentation]

## API Changes

- [CRI] Added a new field called `runtime_handler` into `PodSandbox` and `PodSandboxStatus` to track the `RuntimeClass` information of a pod. ([#73833](https://github.com/kubernetes/kubernetes/pull/73833), [@haiyanmeng](https://github.com/haiyanmeng))

## Detailed Bug Fixes And Changes

### API Machinery

- Added feature gate `MutatingAdmissionPolicy` for enabling mutation policy in admission chain. ([#123425](https://github.com/kubernetes/kubernetes/pull/123425), [@cici37](https://github.com/cici37))
- Added kubelet metrics to track the memory manager allocation and pinning. ([#121778](https://github.com/kubernetes/kubernetes/pull/121778), [@Tal-or](https://github.com/Tal-or))

* no ([#75820](https://github.com/kubernetes/kubernetes/pull/75820), [@YoubingLi](https://github.com/YoubingLi))
* Use stdlib to log stack trace when a panic occurs ([#75853](https://github.com/kubernetes/kubernetes/pull/75853), [@roycaihw](https://github.com/roycaihw))

### Feature

- A client-go metric, rest_client_exec_plugin_call_total, has been added to track total calls to client-go credential plugins. ([#98892](https://github.com/kubernetes/kubernetes/pull/98892), [@ankeesler](https://github.com/ankeesler)) [SIG API Machinery, Auth, Cluster Lifecycle and Instrumentation]