- The `/swaggerapi/*` schema docs, deprecated since 1.7, have been removed in favor of the /openapi/v2 schema docs. ([#72924](https://github.com/kubernetes/kubernetes/pull/72924), [@liggitt](https://github.com/liggitt))

- Introduced OpenAPI format support for `k8s-short-name` and `k8s-long-name` in CustomResourceDefinition schemas. ([#132504](https://github.com/kubernetes/kubernetes/pull/132504), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Network, Node, Scheduling and Storage]

    <_comment>glob pattern typically *.xls</_comment>
  </mime-type>
  <mime-type type="application/vnd.ms-wordml">
    <root-XML localName="wordDocument" namespaceURI="http://schemas.microsoft.com/office/word/2003/wordml"/>
    <root-XML localName="wordDocument"/>
    <sub-class-of type="application/xml"/>
    <_comment>Word 2003 xml format, pre-ooxml</_comment>

jflute <******@****.***> 1437804256 +0900

## Changelog since v1.20.11

## Changes by Kind

### API Change

- Kube-apiserver: Fixes handling of CRD schemas containing literal null values in enums (#104990, @liggitt) [SIG API Machinery, Apps and Network]

### Bug or Regression

        * In responses, the `set` will be converted to a `list`.
        * The generated schema will specify that the `set` values are unique (using JSON Schema's `uniqueItems`).
* `bytes`:
    * Standard Python `bytes`.
    * In requests and responses will be treated as `str`.
    * The generated schema will specify that it's a `str` with `binary` "format".
* `Decimal`:
    * Standard Python `Decimal`.

* Add port forwarding for rkt with kvm stage1 ([#32126](https://github.com/kubernetes/kubernetes/pull/32126), [@jjlakis](https://github.com/jjlakis))

  clearing of the `terminatedEndpoints` map. ([#135146](https://github.com/kubernetes/kubernetes/pull/135146), [@princepereira](https://github.com/princepereira)) [SIG Network and Windows]
- Fixed a bug in `ValidatingAdmissionPolicy` where schemas with `additionalProperties: true` could cause the kube-controller-manager to crash with a nil pointer exception. ([#135155](https://github.com/kubernetes/kubernetes/pull/135155), [@jpbetz](https://github.com/jpbetz))

			cacheStore.Store(embeddedCacheKey, true)
			if field.EmbeddedSchema, err = getOrParse(fieldValue.Interface(), cacheStore, embeddedNamer{Table: schema.Table, Namer: schema.namer}); err != nil {
				schema.err = err
			}

			for _, ef := range field.EmbeddedSchema.Fields {
				ef.Schema = schema
				ef.OwnerSchema = field.EmbeddedSchema
				ef.BindNames = append([]string{fieldStruct.Name}, ef.BindNames...)

* Eviction thresholds set to 0% or 100% will turn off eviction. ([#59681](https://github.com/kubernetes/kubernetes/pull/59681), [@mtaufen](https://github.com/mtaufen))

* CustomResourceDefinitions: OpenAPI v3 validation schemas containing `$ref`references are no longer permitted. Before upgrading, ensure CRD definitions do not include those `$ref` fields. ([#58438](https://github.com/kubernetes/kubernetes/pull/58438), [@carlory](https://github.com/carlory))