Update documentation on node OS/arch labels (#12976)

These labels have been promoted to GA:
kubernetes/enhancements#793

content/en/docs/concepts/configuration/assign-pod-node.md

@@ -83,8 +83,8 @@ with a standard set of labels. As of Kubernetes v1.4 these labels are
 * `failure-domain.beta.kubernetes.io/zone`
 * `failure-domain.beta.kubernetes.io/region`
 * `beta.kubernetes.io/instance-type`
-* `beta.kubernetes.io/os`
-* `beta.kubernetes.io/arch`
+* `kubernetes.io/os`
+* `kubernetes.io/arch`
 
 {{< note >}}
 The value of these labels is cloud provider specific and is not guaranteed to be reliable.

content/en/docs/getting-started-guides/windows/_index.md

@@ -286,7 +286,7 @@ See [joining-your-nodes](https://kubernetes.io/docs/setup/independent/create-clu
 The examples listed below assume running Windows nodes on Windows Server 1709. If you are running Windows Server 2016, the examples will need the image updated to specify `image: microsoft/windowsservercore:ltsc2016`. This is due to the requirement for container images to match the host operating system version when using process isolation. Not specifying a tag will implicitly use the `:latest` tag which can lead to surprising behaviors. Please consult with [https://hub.docker.com/r/microsoft/windowsservercore/](https://hub.docker.com/r/microsoft/windowsservercore/) for additional information on Windows Server Core image tagging.
 
 ### Scheduling Pods on Windows
-Because your cluster has both Linux and Windows nodes, you must explicitly set the `nodeSelector` constraint to be able to schedule pods to Windows nodes. You must set nodeSelector with the label `beta.kubernetes.io/os` to the value `windows`; see the following example:
+Because your cluster has both Linux and Windows nodes, you must explicitly set the `nodeSelector` constraint to be able to schedule pods to Windows nodes. You must set nodeSelector with the label `kubernetes.io/os` to the value `windows`; see the following example:
 
 {{< codenew file="windows/simple-pod.yaml" >}}
 

content/en/docs/reference/access-authn-authz/admission-controllers.md

@@ -418,9 +418,9 @@ This label prefix is reserved for administrators to label their `Node` objects f
 and kubelets will not be allowed to modify labels with that prefix.
 * **Allows** kubelets to add/remove/update these labels and label prefixes:
   * `kubernetes.io/hostname`
-  * `beta.kubernetes.io/arch`
+  * `kubernetes.io/arch`
+  * `kubernetes.io/os`
   * `beta.kubernetes.io/instance-type`
-  * `beta.kubernetes.io/os`
   * `failure-domain.beta.kubernetes.io/region`
   * `failure-domain.beta.kubernetes.io/zone`
   * `kubelet.kubernetes.io/`-prefixed labels

content/en/docs/reference/kubernetes-api/labels-annotations-taints.md

@@ -11,23 +11,32 @@ This document serves both as a reference to the values, and as a coordination po
 {{% /capture %}}
 
 {{% capture body %}}
-## beta.kubernetes.io/arch
+## kubernetes.io/arch
 
-Example: `beta.kubernetes.io/arch=amd64`
+Example: `kubernetes.io/arch=amd64`
 
 Used on: Node
 
 Kubelet populates this with `runtime.GOARCH` as defined by Go.  This can be handy if you are mixing arm and x86 nodes,
 for example.
 
-## beta.kubernetes.io/os
+## kubernetes.io/os
 
-Example: `beta.kubernetes.io/os=linux`
+Example: `kubernetes.io/os=linux`
 
 Used on: Node
 
 Kubelet populates this with `runtime.GOOS` as defined by Go.  This can be handy if you are mixing operating systems
-in your cluster (although currently Linux is the only OS supported by Kubernetes).
+in your cluster (e.g., mixing Linux and Windows nodes).
+
+## beta.kubernetes.io/arch (deprecated)
+
+This label has been deprecated. Please use `kubernetes.io/arch` instead.
+
+## beta.kubernetes.io/os (deprecated)
+
+This label has been deprecated. Please use `kubernetes.io/os` instead.
+
 
 ## kubernetes.io/hostname
 

content/en/docs/tasks/debug-application-cluster/debug-application-introspection.md

@@ -293,8 +293,8 @@ kubectl describe node kubernetes-node-861h
 ```none
 Name:			kubernetes-node-861h
 Role
-Labels:		 beta.kubernetes.io/arch=amd64
-           beta.kubernetes.io/os=linux
+Labels:		 kubernetes.io/arch=amd64
+           kubernetes.io/os=linux
            kubernetes.io/hostname=kubernetes-node-861h
 Annotations:        node.alpha.kubernetes.io/ttl=0
                     volumes.kubernetes.io/controller-managed-attach-detach=true