- Added audienceMatchPolicy field to AuthenticationConfiguration and support for configuring multiple audiences.
  The "audienceMatchPolicy" can be empty (or unset) when a single audience is specified in the "audiences" field.
  The "audienceMatchPolicy" must be set to "MatchAny" when multiple audiences are specified in the "audiences" field. ([#123165](https://github.com/kubernetes/kubernetes/pull/123165), [@aramase](https://github.com/aramase))

## Changes by Kind

### Deprecation

- API server's deprecated `--service-account-api-audiences` flag was removed.  Use `--api-audiences` instead. ([#108624](https://github.com/kubernetes/kubernetes/pull/108624), [@ialidzhikov](https://github.com/ialidzhikov))

// otherwise).
type ServiceAccountTokenProjection struct {
	// Audience is the intended audience of the token. A recipient of a token
	// must identify itself with an identifier specified in the audience of the
	// token, and otherwise should reject the token. The audience defaults to the
	// identifier of the apiserver.
	Audience string
	// ExpirationSeconds is the requested duration of validity of the service

	"audience":          "audience is the intended audience of the token. A recipient of a token must identify itself with an identifier specified in the audience of the token, and otherwise should reject the token. The audience defaults to the identifier of the apiserver.",

type ServiceAccountTokenProjection struct {
	// audience is the intended audience of the token. A recipient of a token
	// must identify itself with an identifier specified in the audience of the
	// token, and otherwise should reject the token. The audience defaults to the
	// identifier of the apiserver.
	// +optional
	Audience string `json:"audience,omitempty" protobuf:"bytes,1,rep,name=audience"`

// otherwise).
message ServiceAccountTokenProjection {
  // audience is the intended audience of the token. A recipient of a token
  // must identify itself with an identifier specified in the audience of the
  // token, and otherwise should reject the token. The audience defaults to the
  // identifier of the apiserver.
  // +optional
  optional string audience = 1;

}

func autoConvert_v1_ServiceAccountTokenProjection_To_core_ServiceAccountTokenProjection(in *v1.ServiceAccountTokenProjection, out *core.ServiceAccountTokenProjection, s conversion.Scope) error {
	out.Audience = in.Audience
	if err := metav1.Convert_Pointer_int64_To_int64(&in.ExpirationSeconds, &out.ExpirationSeconds, s); err != nil {
		return err
	}
	out.Path = in.Path
	return nil
}

        "properties": {
          "audience": {
            "description": "audience is the intended audience of the token. A recipient of a token must identify itself with an identifier specified in the audience of the token, and otherwise should reject the token. The audience defaults to the identifier of the apiserver.",
            "type": "string"
          },