- Revised the kubelet API Authorization with new subresources, that allow finer-grained authorization checks and access control for kubelet endpoints.
  Provided you enable the `KubeletFineGrainedAuthz` feature gate, you can access kubelet's `/healthz` endpoint by granting the caller `nodes/helathz` permission in RBAC.

- DRA: Starting with Kubernetes 1.34, the alpha-level `resource.k8s.io/admin-access` label has been updated to `resource.kubernetes.io/admin-access`. Admins using the alpha feature and updating from 1.33 can set both labels, upgrade, then remove `resource.k8s.io/admin-access` when no downgrade is going to happen anymore. ([#131996](https://github.com/kubernetes/kubernetes/pull/131996), [@ritazh](https://github.com/ritazh))...

- The `system:aggregate-to-edit` role no longer includes write access to the Endpoints API. For new Kubernetes 1.22 clusters, the `edit` and `admin` roles will no longer include that access in newly created Kubernetes 1.22 clusters. This will have no affect on existing clusters upgrading to Kubernetes 1.22. To retain write access to Endpoints in the aggregated `edit` and `admin` roles for newly created 1.22 clusters, refer to https://github.co...

* Fix CVE-2019-11249: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory traversal ([#80436](https://github.com/kubernetes/kubernetes/pull/80436))
* Fix CVE-2019-11247: API server allows access to custom resources via wrong scope ([#80750](https://github.com/kubernetes/kubernetes/pull/80750))

- DRA: Starting Kubernetes 1.33, only users with access to an admin namespace with the `kubernetes.io/dra-admin-access` label are authorized to create ResourceClaim or ResourceClaimTemplate objects with the `adminAccess` field in this admin namespace if they want to and only they can reference these ResourceClaims or ResourceClaimTemplates...

CustomResourceDefinition](https://kubernetes.io/docs/tasks/access-kubernetes-api/migrate-third-party-resource/).

* [beta] User-provided apiservers can be aggregated (served along with) the rest of the Kubernetes API. See [Extending the Kubernetes API with the aggregation layer](https://kubernetes.io/docs/concepts/api-extension/apiserver-aggregation/), [Configure the aggregation layer](https://kubernetes.io/docs/tasks/access-kubernetes-api/configure-aggregation-layer/), and [Setup an...

    *   Pod Security Policy can now manage access to specific FlexVolume drivers.([#53179](https://github.com/kubernetes/kubernetes/pull/53179),[ @wanghaoran1988](https://github.com/wanghaoran1988))
    *   To prevent unauthorized access to CHAP Secrets, you can now set the secretNamespace storage class parameters for the following volume types:

* The kubelet API is now secured, only cluster admins are allowed to access it.
* Insecure access to the API Server over `localhost:8080` is now disabled.
* The control plane components now talk securely to each other. The API Server talks securely to the kubelets in the cluster.

* Fix user visible files creation for windows ([#62375](https://github.com/kubernetes/kubernetes/pull/62375), [@feiskyer](https://github.com/feiskyer))
* Resolves forbidden error when the `daemon-set-controller` cluster role access `controllerrevisions` resources. ([#62146](https://github.com/kubernetes/kubernetes/pull/62146), [@frodenas](https://github.com/frodenas))

functions, and on making security functions more understandable for users.

RBAC [cluster role aggregation](https://kubernetes.io/docs/reference/access-authn-authz/rbac/#aggregated-clusterroles), introduced in 1.9, graduated to stable status with no changes in 1.11, and [client-go credential plugins](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#client-go-credential-plugins)  graduated to beta status, while also adding support for obtaining TLS credentials from an external...