* The audit log file defaults to JSON encoding when using the advanced auditing feature gate.
  * An audit policy file without either an `apiVersion` or a `kind` field may be treated as invalid.
  * The webhook and log file now output the `v1beta1` event format.

* `framework.ExpectNoError` no longer logs the error and instead relies on using the new `log.Fail` as Gomega fail handler. ([#80253](https://github.com/kubernetes/kubernetes/pull/80253), [@pohly](https://github.com/pohly))
* Audit events now log the existence and patch of mutating webhooks.  ([#77824](https://github.com/kubernetes/kubernetes/pull/77824), [@roycaihw](https://github.com/roycaihw))

  which is not allowed. ([#121666](https://github.com/kubernetes/kubernetes/pull/121666), [@kerthcet](https://github.com/kerthcet)) [SIG Scheduling]

* Enable insertId generation, and update Stackdriver Logging Agent image to 0.5-1.5.36-1-k8s. This help reduce log duplication and guarantee log order. ([#68920](https://github.com/kubernetes/kubernetes/pull/68920), [@qingling128](https://github.com/qingling128))

### Other (Cleanup or Flake)

- A v2-level info log will be added, which will output the details of the pod being preempted, including victim and preemptor ([#117214](https://github.com/kubernetes/kubernetes/pull/117214), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG Scheduling]

* Removed Alpha feature `MountContainers` ([#84365](https://github.com/kubernetes/kubernetes/pull/84365), [@codenrhoden](https://github.com/codenrhoden))

## Changelog since v1.18.4

## Changes by Kind

### API Change

- Fixed: log timestamps now include trailing zeros to maintain a fixed width ([#91207](https://github.com/kubernetes/kubernetes/pull/91207), [@iamchuckss](https://github.com/iamchuckss)) [SIG Apps and Node]

### Bug or Regression

run-time panics raised by <code>g</code>.
</p>

<pre>
func protect(g func()) {
	defer func() {
		log.Println("done")  // Println executes normally even if there is a panic
		if x := recover(); x != nil {
			log.Printf("run time panic: %v", x)
		}
	}()
	log.Println("start")
	g()
}
</pre>


<h3 id="Bootstrapping">Bootstrapping</h3>

<p>

* 👥 Update FastAPI People. PR [#9181](https://github.com/tiangolo/fastapi/pull/9181) by [@github-actions[bot]](https://github.com/apps/github-actions).
* 🔊 Log GraphQL errors in FastAPI People, because it returns 200, with a payload with an error. PR [#9171](https://github.com/tiangolo/fastapi/pull/9171) by [@tiangolo](https://github.com/tiangolo).

- [`KT-60576`](https://youtrack.jetbrains.com/issue/KT-60576) Keep supported IR signature versions in manifest
- [`KT-59136`](https://youtrack.jetbrains.com/issue/KT-59136) [PL] Lower the default PL engine messages log level down to INFO
- [`KT-59486`](https://youtrack.jetbrains.com/issue/KT-59486) klib: Serialize mangled names along with signatures

### Language Design