- Added a new metric `apiserver_flowcontrol_request_concurrency_in_use` that shows the number of
  seats (concurrency) occupied by the currently executing requests in the API Priority and Fairness system. ([#102795](https://github.com/kubernetes/kubernetes/pull/102795), [@tkashem](https://github.com/tkashem))

plain period and slash.
Within an assembler source file, the symbols above are written as
<code>fmt·Printf</code> and <code>math∕rand·Int</code>.
The assembly listings generated by the compilers when using the <code>-S</code> flag
show the period and slash directly instead of the Unicode replacements
required by the assemblers.
</p>

<p>
Most hand-written assembly files do not include the full package path

- `kubectl describe service` now shows internal traffic policy and ip mode of load balancer IP. ([#125117](https://github.com/kubernetes/kubernetes/pull/125117), [@tnqn](https://github.com/tnqn)) [SIG CLI and Network]

## Dependencies

### Added

* Federated secret controller ([#30669](https://github.com/kubernetes/kubernetes/pull/30669), [@kshafiee](https://github.com/kshafiee))
* Add Events for operation_executor to show status of mounts, failed/successful to show in describe events ([#27778](https://github.com/kubernetes/kubernetes/pull/27778), [@screeley44](https://github.com/screeley44))

- The status of v1beta1 CRDs without "preserveUnknownFields:false" now shows a violation, "spec.preserveUnknownFields: Invalid value: true: must be false". ([#93078](https://github.com/kubernetes/kubernetes/pull/93078), [@vareti](https://github.com/vareti))

			r:            strings.NewReader("abcdefghijklmnopqrstuvwxyz"),
			n:            27,
			want:         26,
			wantErr:      io.EOF,
			wantBuffered: 0,
		},
		// Any error from filling shouldn't show up until we
		// get past the valid bytes. Here we return 5 valid bytes at the same time
		// as an error, but test that we don't see the error from Discard.
		{
			name: "fill error, discard less",

* APIserver backed by etcdv3 exports metric shows number of resources per kind. ([#59757](https://github.com/kubernetes/kubernetes/pull/59757), [@gmarek](https://github.com/gmarek))

- If a pod has a running instance, the stats of its previously terminated instances will not show up in the kubelet summary stats any more for CRI runtimes such as containerd and cri-o. This keeps the behavior consistent with Docker integration, and fixes an issue that some container Prometheus metrics don't work when there are summary stats for...

- `kube-scheduler`: Optimized implementation of null `labelSelector` in topology spreading. ([#116607](https://github.com/kubernetes/kubernetes/pull/116607), [@alculquicondor](https://github.com/alculquicondor))
- `kubeadm`: now shows a warning message when detecting that the sandbox image of the container runtime is inconsistent with that used by kubeadm ([#115610](https://github.com/kubernetes/kubernetes/pull/115610), [@SataQiu](https://github.com/SataQiu))

## Other Notable Changes

### SIG API Machinery

- `kubectl get apiservice` now shows the target service and whether the service is available ([#67747](https://github.com/kubernetes/kubernetes/pull/67747), [@smarterclayton](https://github.com/smarterclayton))