message SelfSubjectRulesReviewSpec {
  // Namespace to evaluate rules for. Required.
  optional string namespace = 1;
}

// SubjectAccessReview checks whether or not a user or group can perform an action.
message SubjectAccessReview {
  // Standard list metadata.
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional

message SelfSubjectRulesReviewSpec {
  // Namespace to evaluate rules for. Required.
  optional string namespace = 1;
}

// SubjectAccessReview checks whether or not a user or group can perform an action.
message SubjectAccessReview {
  // Standard list metadata.
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional

- ValidatingAdmissionPolicy now exclude TokenReview, SelfSubjectReview, LocalSubjectAccessReview, and SubjectAccessReview from all versions of authentication.k8s.io and authorization.k8s.io group. ([#123543](https://github.com/kubernetes/kubernetes/pull/123543), [@jiahuif](https://github.com/jiahuif))

* The SubjectAccessReview API in the `authorization.k8s.io` API group now allows providing the user uid. ([#49677](https://github.com/kubernetes/kubernetes/pull/49677), [@dims](https://github.com/dims))

- Set metrics-server's metric-resolution to 15s. ([#117121](https://github.com/kubernetes/kubernetes/pull/117121), [@dgrisonnet](https://github.com/dgrisonnet)) [SIG Cloud Provider and Instrumentation]
- SubjectAccessReview requests sent to webhook authorizers now default `spec.resourceAttributes.version` to `*` if unset. ([#116937](https://github.com/kubernetes/kubernetes/pull/116937), [@AxeZhan](https://github.com/AxeZhan)) [SIG Apps and Auth]