chore: clarify version support policy

jawnsy · jawnsy · commit 625675d77eab · 2021-07-07T17:25:16.000Z
Recommend that users track supported Kubernetes versions, and remove
the reference to version 1.13.
diff --git a/setup/kubernetes/index.md b/setup/kubernetes/index.md
@@ -1,13 +1,24 @@
 ---
 title: Kubernetes
-description: Learn how to set up a K8 cluster for your Coder deployment.
+description: Learn how to set up a Kubernetes cluster for your Coder deployment.
 ---
 
-You can install and deploy Coder onto any Kubernetes cluster (version 1.13.7+)
-that meets the [requirements](../requirements.md).
+You can deploy Coder into any [compatible Kubernetes cluster]. Coder follows the
+[Kubernetes upstream version support policy] and the latest stable release
+version of Coder supports the previous two minor releases as well as the current
+release. While Coder may run on older versions of Kubernetes, we strongly
+recommend running one of the supported versions, in order to receive applicable
+fixes, including security fixes, from the project maintainers.
 
-To help you get up and running, Coder offers the following deployment guides (if
-you're already set up with a Kubernetes cluster, please proceed to
-[installation](../installation.md)):
+[compatible kubernetes cluster]: ../requirements.md
+[kubernetes upstream version support policy]:
+  https://kubernetes.io/docs/setup/release/version-skew-policy/
+
+This section contains guides for creating a compatible cluster on common cloud
+platforms, including Microsoft Azure, Google Cloud Platform, and Amazon Web
+Services. If you already have a Kubernetes cluster, you may wish to proceed to
+the [installation guide].
+
+[installation guide]: ../installation.md
 
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