* <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - for extra types to be used with Pydantic.

<i>Composite types</i>&mdash;array, struct, pointer, function,
interface, slice, map, and channel types&mdash;may be constructed using
type literals.
</p>

<p>
Predeclared types, defined types, and type parameters are called <i>named types</i>.
An alias denotes a named type if the type given in the alias declaration is a named type.
</p>

<h3 id="Boolean_types">Boolean types</h3>

<p>

// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// +structType=atomic
message ObjectReference {
  // Kind of the referent.
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
  // +optional
  optional string kind = 1;

* Add generate-groups.sh and generate-internal-groups.sh to k8s.io/code-generator to easily run generators against CRD or User API Server types. ([#52186](https://github.com/kubernetes/kubernetes/pull/52186), [@sttts](https://github.com/sttts))

### Feature

- A ValidatingAdmissionPolicy now has its `messageExpression` field checked against resolved types. ([#119209](https://github.com/kubernetes/kubernetes/pull/119209), [@jiahuif](https://github.com/jiahuif)) [SIG API Machinery]

- `PodSchedulingReadiness` is graduated to beta. ([#115815](https://github.com/kubernetes/kubernetes/pull/115815), [@Huang-Wei](https://github.com/Huang-Wei))
- `PodSpec.Container.Resources` became mutable for CPU and memory resource types.
  - `PodSpec.Container.ResizePolicy` (new object) gives users control over how their containers are resized.
  - `PodStatus.Resize` status describes the state of a requested Pod resize.

    /** The key of the configuration. e.g. true */
    String SMB_ROLE_FROM_FILE = "smb.role.from.file";

    /** The key of the configuration. e.g. 1,2,4:2,5:1 */
    String SMB_AVAILABLE_SID_TYPES = "smb.available.sid.types";

    /** The key of the configuration. e.g. true */
    String FILE_ROLE_FROM_FILE = "file.role.from.file";

    /** The key of the configuration. e.g. true */

- `ValidatingAdmissionPolicy` type checking now supports CRDs and API extensions types. ([#119109](https://github.com/kubernetes/kubernetes/pull/119109), [@jiahuif](https://github.com/jiahuif))