- 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)

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

* Audit policy supports matching subresources and resource names, but the top level resource no longer matches the subresouce. For example "pods" no longer matches requests to the logs subresource of pods. Use "pods/logs" to match subresources. ([#48836](https://github.com/kubernetes/kubernetes/pull/48836), [@ericchiang](https://github.com/ericchiang))

    * Appropriately set log severity for k8s_container.
    * Fix detect exceptions plugin to analyze message field instead of log field.
    * Fix detect exceptions plugin to analyze streams based on local resource id.
    * Disable the metadata agent for monitored resource construction in logging.
    * Disable timestamp adjustment in logs to optimize performance.

    * Appropriately set log severity for k8s_container.
    * Fix detect exceptions plugin to analyze message field instead of log field.
    * Fix detect exceptions plugin to analyze streams based on local resource id.
    * Disable the metadata agent for monitored resource construction in logging.
    * Disable timestamp adjustment in logs to optimize performance.

* Advanced audit policy now supports matching subresources and resource names, but the top level resource no longer matches the subresouce. For example "pods" no longer matches requests to the logs subresource of pods. Use "pods/logs" to match subresources. ([#48836](https://github.com/kubernetes/kubernetes/pull/48836), [@ericchiang](https://github.com/ericchiang))

- kubelet now supports `log-file` option to write logs directly to a specific file ([#70917](https://github.com/kubernetes/kubernetes/pull/70917), [@dims](https://github.com/dims))