definition of an interface's type set as follows:
</p>

<ul>
	<li>The type set of the empty interface is the set of all non-interface types.
	</li>

	<li>The type set of a non-empty interface is the intersection of the type sets
		of its interface elements.
	</li>

	<li>The type set of a method specification is the set of all non-interface types

  - `--service-account-issuer`, should be set to a URL identifying the API server that will be stable over the cluster lifetime.
  - `--service-account-key-file`, set to one or more files containing one or more public keys used to verify tokens.

  * Authorization sets `authorization.k8s.io/decision` and `authorization.k8s.io/reason` annotations with the authorization decision ("allow" or "forbid") and a human-readable description of why the decision was made (for example, RBAC includes the name of the role/binding/subject which allowed a request).

*   The default `auto-detect` behavior of the kubelet's `--cloud-provider` flag is removed.
    *   You can manually set `--cloud-provider=auto-detect`, but be aware that this behavior will be removed completely in a future version.
    *   Best practice for version 1.9 and future versions is to explicitly set a cloud-provider. See [the documentation](https://kubernetes.io/docs/getting-started-guides/scratch/#cloud-providers)

* Ensured IP is set for Azure internal load balancer. ([#59083](https://github.com/kubernetes/kubernetes/pull/59083), [@feiskyer](https://github.com/feiskyer))

- Kube-apiserver: redirect responses are no longer returned from backends by default. Set `--aggregator-reject-forwarding-redirect=false` to continue forwarding redirect responses. ([#112358](https://github.com/kubernetes/kubernetes/pull/112358), [@enj](https://github.com/enj)) [SIG API Machinery]

Besides the above new features, support for Azure Virtual Machine Scale Sets (VMSS) and Cluster-Autoscaler is now stable and considered GA:

- Azure virtual machine scale sets (VMSS) allow you to create and manage identical load balanced VMs that automatically increase or decrease based on demand or a set schedule.

For more information, see [#53154](https://github.com/kubernetes/kubernetes/issues/53154).

* `kubectl set` commands placed on ReplicaSet and DaemonSet occasionally return version errors. All set commands, including set image, set env, set resources, and set serviceaccounts, are affected.

For more information, see [#53040](https://github.com/kubernetes/kubernetes/issues/53040).

- Fix: set nil cache entry based on old cache ([#87591](https://github.com/kubernetes/kubernetes/pull/87591), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]

- Fix: set nil cache entry based on old cache ([#87593](https://github.com/kubernetes/kubernetes/pull/87593), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]