)

func (cc *http2ClientConn) logf(format string, args ...interface{}) {
	cc.t.logf(format, args...)
}

func (cc *http2ClientConn) vlogf(format string, args ...interface{}) {
	cc.t.vlogf(format, args...)
}

func (t *http2Transport) vlogf(format string, args ...interface{}) {
	if http2VerboseLogs {
		t.logf(format, args...)
	}
}

- 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))

### Runtime log sanitation

Logs can now be configured to use runtime protection from leaking sensitive data. [Details for this experimental feature is available in documentation](https://docs.k8s.io/concepts/cluster-administration/system-logs/#log-sanitization).

### Pod resource metrics

- github.com/go-bindata/go-bindata: [v3.1.1+incompatible](https://github.com/go-bindata/go-bindata/tree/v3.1.1)
- github.com/go-logr/logr: [v0.1.0](https://github.com/go-logr/logr/tree/v0.1.0)
- github.com/google/martian: [v2.1.0+incompatible](https://github.com/google/martian/tree/v2.1.0)
- github.com/google/pprof: [3ea8567](https://github.com/google/pprof/tree/3ea8567)

// PodLogOptions is the query options for a Pod's logs REST call
type PodLogOptions struct {
	metav1.TypeMeta

	// Container for which to return logs
	Container string
	// If true, follow the logs for the pod
	Follow bool
	// If true, return previous terminated container logs
	Previous bool
	// A relative time in seconds before the current time from which to show logs. If this value

- 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

  - cAdvisor json endpoints have been deprecated. ([#78504](https://github.com/kubernetes/kubernetes/pull/78504), [@dashpole](https://github.com/dashpole))

- kube-apiserver
  - The `--enable-logs-handler` flag and log-serving functionality is deprecated, and scheduled to be removed in v1.19. ([#77611](https://github.com/kubernetes/kubernetes/pull/77611), [@rohitsardesai83](https://github.com/rohitsardesai83))

- kube-proxy

    * 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.

- Kube-proxy: on dual-stack mode, if it is not able to get the IP Family of an endpoint, logs it with level InfoV(4) instead of Warning, avoiding flooding the logs for endpoints without addresses ([#88934](https://github.com/kubernetes/kubernetes/pull/88934), [@aojea](https://github.com/aojea)) [SIG Network]

- github.com/fatih/color: [v1.7.0](https://github.com/fatih/color/tree/v1.7.0)
- github.com/go-gl/glfw: [e6da0ac](https://github.com/go-gl/glfw/tree/e6da0ac)
- github.com/go-logr/stdr: [v1.2.2](https://github.com/go-logr/stdr/tree/v1.2.2)
- github.com/google/martian: [v2.1.0+incompatible](https://github.com/google/martian/tree/v2.1.0)