- CEL authorizer checks no longer raise runtime errors. Calls to "check" will always return a decision object and the authorization error (if any) can be accessed within expressions using the new decision methods "errored" and "error". ([#118804](https://github.com/kubernetes/kubernetes/pull/118804), [@benluddy](https://github.com/benluddy)) [SIG API Machinery]

depends on functionality of the <i>imported</i> package
(<a href="#Program_initialization_and_execution">§Program initialization and execution</a>)
and enables access to <a href="#Exported_identifiers">exported</a> identifiers
of that package.
The import names an identifier (PackageName) to be used for access and an ImportPath
that specifies the package to be imported.
</p>

<pre class="ebnf">

- Fix a race condition in transforming informer happening when objects were accessed during Resync operation ([#124344](https://github.com/kubernetes/kubernetes/pull/124344), [@...

- 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...

  - [Changelog since v1.20.10](#changelog-since-v12010)
  - [Important Security Information](#important-security-information)
    - [CVE-2021-25741: Symlink Exchange Can Allow Host Filesystem Access](#cve-2021-25741-symlink-exchange-can-allow-host-filesystem-access)
  - [Changes by Kind](#changes-by-kind-4)
    - [Bug or Regression](#bug-or-regression-4)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake-1)
  - [Dependencies](#dependencies-4)

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...

* Allow the system:heapster ClusterRole read access to deployments ([#48357](https://github.com/kubernetes/kubernetes/pull/48357), [@faraazkhan](https://github.com/faraazkhan))
* Ensure get_password is accessing a file that exists. ([#48351](https://github.com/kubernetes/kubernetes/pull/48351), [@ktsakalozos](https://github.com/ktsakalozos))

    *   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:

  - [Changelog since v1.21.4](#changelog-since-v1214)
  - [Important Security Information](#important-security-information)
    - [CVE-2021-25741: Symlink Exchange Can Allow Host Filesystem Access](#cve-2021-25741-symlink-exchange-can-allow-host-filesystem-access)
  - [Changes by Kind](#changes-by-kind-8)
    - [Feature](#feature-6)
    - [Bug or Regression](#bug-or-regression-8)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake-1)

* 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.