- Kubectl azure authentication: fixed a regression in 1.18.0 where "spn:" prefix was unexpectedly added to the `apiserver-id` configuration in the kubeconfig file ([#89706](https://github.com/kubernetes/kubernetes/pull/89706), [@weinong](https://github.com/weinong)) [SIG API...

 *  New: `EventListener.followUpDecision()` is called each time a response is received. It notifies
    your listener if OkHttp has decided to make a follow-up request. Some common follow-ups are
    authentication challenges and redirects.

 *  New: Handy constants for `Headers.EMPTY`, `RequestBody.EMPTY`, and `ResponseBody.EMPTY`.

 *  New: OkHttp now calls `StrictMode.noteSlowCall()` when initializing TLS on Android. Use

		}
	}
}

func (s *peerRESTServer) writeErrorResponse(w http.ResponseWriter, err error) {
	w.WriteHeader(http.StatusForbidden)
	w.Write([]byte(err.Error()))
}

// IsValid - To authenticate and verify the time difference.
func (s *peerRESTServer) IsValid(w http.ResponseWriter, r *http.Request) bool {
	if err := storageServerRequestValidate(r); err != nil {
		s.writeErrorResponse(w, err)
		return false

- ACTION REQUIRED: Support for basic authentication via the --basic-auth-file flag has been removed.  Users should migrate to --token-auth-file for similar functionality. ([#89069](https://github.com/kubernetes/kubernetes/pull/89069), [@enj](https://github.com/enj)) [SIG API Machinery]

 * no mechanism to differentiate empty from absent. Neither of these components are popular in
 * practice. Typically HTTP applications use other mechanisms for user identification and
 * authentication.
 *
 * ### Host
 *
 * The host identifies the webserver that serves the URL's resource. It is either a hostname like
 * `square.com` or `localhost`, an IPv4 address like `192.168.0.1`, or an IPv6 address like `::1`.

    * If your code depended on these classes raising the old (less correct) `403` status code, check the new docs about how to override the classes, to use the same old behavior: [Use Old 403 Authentication Error Status Codes](https://fastapi.tiangolo.com/how-to/authentication-error-status-code/).

### Internal

- Fix a bug in cronjob controller where...

The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://docs.min.io/minio/baremetal/security/openid-external-identity-management/external-authentication-with-openid-identity-provider.html#minio-external-identity-management-openid for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-url/.well-known/openid-configuration" clientId: "minio" clientSecret:...

The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://docs.min.io/minio/baremetal/security/openid-external-identity-management/external-authentication-with-openid-identity-provider.html#minio-external-identity-management-openid for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-url/.well-known/openid-configuration" clientId: "minio" clientSecret:...

- fluentd-gcp is unchanged at v3.2.0 as of Kubernetes 1.13. ([#70954](https://github.com/kubernetes/kubernetes/pull/70954))
- OIDC authentication is unchanged at coreos/go-oidc v2 as of Kubernetes 1.10. ([#58544](https://github.com/kubernetes/kubernetes/pull/58544))