- Introduced new metrics removing the redundant subsystem in kube-apiserver pod logs metrics and deprecate the original ones:
  - kube_apiserver_pod_logs_pods_logs_backend_tls_failure_total becomes kube_apiserver_pod_logs_backend_tls_failure_total

- github.com/docker/docker: [bd33bbf → v20.10.2+incompatible](https://github.com/docker/docker/compare/bd33bbf...v20.10.2)
- github.com/go-logr/logr: [v0.2.0 → v0.4.0](https://github.com/go-logr/logr/compare/v0.2.0...v0.4.0)
- github.com/go-openapi/spec: [v0.19.3 → v0.19.5](https://github.com/go-openapi/spec/compare/v0.19.3...v0.19.5)

- github.com/fvbommel/sortorder: [v1.0.1 → v1.1.0](https://github.com/fvbommel/sortorder/compare/v1.0.1...v1.1.0)
- github.com/go-kit/log: [v0.2.0 → v0.2.1](https://github.com/go-kit/log/compare/v0.2.0...v0.2.1)
- github.com/go-logr/logr: [v1.2.3 → v1.2.4](https://github.com/go-logr/logr/compare/v1.2.3...v1.2.4)
- github.com/go-openapi/jsonreference: [v0.20.1 → v0.20.2](https://github.com/go-openapi/jsonreference/compare/v0.20.1...v0.20.2)

- Fixed some invalid and unimportant log calls. ([#121249](https://github.com/kubernetes/kubernetes/pull/121249), [@pohly](https://github.com/pohly)) [SIG Cloud Provider, Cluster Lifecycle and Testing]

- github.com/evanphx/json-patch: [v4.11.0+incompatible → v4.12.0+incompatible](https://github.com/evanphx/json-patch/compare/v4.11.0...v4.12.0)
- github.com/go-logr/logr: [v1.1.0 → v1.2.0](https://github.com/go-logr/logr/compare/v1.1.0...v1.2.0)
- github.com/go-logr/zapr: [v1.1.0 → v1.2.0](https://github.com/go-logr/zapr/compare/v1.1.0...v1.2.0)
- k8s.io/klog/v2: v2.20.0 → v2.30.0
- k8s.io/utils: bdf08cb → cb0fa31

### Removed
_Nothing has changed._

- Kube-apiserver: removed `apf_fd` from server logs which could contain data identifying the requesting user ([#108631](https://github.com/kubernetes/kubernetes/pull/108631), [@jupblb](https://github.com/jupblb))

s/tasks/debug/debug-cluster/audit/) is now enabled behind a featureGate in kubeadm. A user can supply their own audit policy with configuration option as well as a place for the audit logs to live. If no policy is supplied a default policy will be provided. The default policy will log all Metadata level policy logs. It is the example provided in the documentation. ([#59067](https://github.com/kubernetes/kubernetes/pull/59067), [@chuckha](https://github.com/chuckha))

* Reduce Metrics...

- A new `--prefix` flag added into kubectl logs which prepends each log line with information about it's source (pod name and container name) ([#76471](https://github.com/kubernetes/kubernetes/pull/76471), [@m1kola](https://github.com/m1kola))

## API Changes

  // +optional
  optional bool previous = 3;

  // A relative time in seconds before the current time from which to show logs. If this value
  // precedes the time a pod was started, only logs since the pod start will be returned.
  // If this value is in the future, no logs will be returned.
  // Only one of sinceSeconds or sinceTime may be specified.
  // +optional

* The kube-apiserver [basic audit log](https://kubernetes.io/docs/admin/audit/) can be enabled in GCE by exporting the environment variable `ENABLE_APISERVER_BASIC_AUDIT=true` before running `cluster/kube-up.sh`. This will log to `/var/log/kube-apiserver-audit.log` and use the same `logrotate` settings as `/var/log/kube-apiserver.log`. ([#41211](https://github.com/kubernetes/kubernetes/pull/41211), [@enisoc](https://github.com/enisoc))...