* StorageObjectInUseProtection is now GA ([ref](https://github.com/kubernetes/enhancements/issues/498)) and ([ref](https://github.com/kubernetes/enhancements/issues/499))

#### Graduated to Beta

* Supporting out-of-tree/external cloud providers is now considered beta ([ref](https://github.com/kubernetes/enhancements/issues/88))

* 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))

### Federation

    <sub-class-of type="application/zip"/>
    <!-- Only works if the Content Types or rels file is the first zip entry -->
    <magic priority="50">
      <match value="PK\003\004" type="string" offset="0">
        <match value="[Content_Types].xml" type="string" offset="30"/>
        <match value="_rels/.rels" type="string" offset="30"/>
      </match>
    </magic>
  </mime-type>

nz.basketball

// Rochester Institute of Technology : http://www.rit.edu/
// Submitted by Jennifer Herting <******@****.***>
git-pages.rit.edu

// Rocky Enterprise Software Foundation : https://resf.org
// Submitted by Neil Hanlon <neil@resf.org>
rocky.page

// Rusnames Limited: http://rusnames.ru/
// Submitted by Sergey Zotov <******@****.***>
биз.рус
ком.рус
крым.рус
мир.рус
мск.рус

## Other notable changes

### API Machinery

- Remove `GetReference()` and `GetPartialReference()` function from `pkg/api/ref`, as the same function exists also in `staging/src/k8s.io/client-go/tools/ref` ([#80361](https://github.com/kubernetes/kubernetes/pull/80361), [@wojtek-t](https://github.com/wojtek-t))

- The default value for node-monitor-grace-period has been increased to 50s (earlier 40s) (Ref - https://github.com/kubernetes/kubernetes/issues/121793) ([#126287](https://github.com/kubernetes/kubernetes/pull/126287), [@devppratik](https://github.com/devppratik)) [SIG API Machinery, Apps and Node]

- The `kubernetes.io/created-by` annotation is deprecated and will be removed in version 1.9.
  Use [ControllerRef](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/api-machinery/controller-ref.md) instead to determine which controller, if any, owns an object.

 - The `batch/v2alpha1.CronJob` is deprecated in favor of `batch/v1beta1`.

### Other notable changes

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

<!--{
	"Title": "The Go Programming Language Specification",
	"Subtitle": "Language version go1.25 (Feb 25, 2025)",
	"Path": "/ref/spec"
}-->

<h2 id="Introduction">Introduction</h2>

<p>
This is the reference manual for the Go programming language.
For more information and other documents, see <a href="/">go.dev</a>.
</p>

<p>
Go is a general-purpose language designed with systems programming