OSSMDOC-542 document non support for dual-stack.

Author: JStickler

modules/ossm-rn-known-issues.adoc

@@ -15,15 +15,16 @@ Module included in the following assemblies:
 
 These limitations exist in {SMProductName}:
 
-* {SMProductName} does not yet support link:https://issues.redhat.com/browse/MAISTRA-1314[IPv6], as it is not yet fully supported by the upstream Istio project.
+* {SMProductName} does not yet support link:https://issues.redhat.com/browse/MAISTRA-1314[IPv6], as it is not yet fully supported by the upstream Istio project.  As a result, {SMProductName} does not support dual-stack clusters.
 
 * Graph layout - The layout for the Kiali graph can render differently, depending on your application architecture and the data to display (number of graph nodes and their interactions). Because it is difficult if not impossible to create a single layout that renders nicely for every situation, Kiali offers a choice of several different layouts. To choose a different layout, you can choose a different *Layout Schema* from the *Graph Settings* menu.
 
 * The first time you access related services such as {JaegerShortName} and Grafana, from the Kiali console, you must accept the certificate and re-authenticate using your {product-title} login credentials. This happens due to an issue with how the framework displays embedded pages in the console.
 
 * The Bookinfo sample application cannot be installed on IBM Z and IBM Power Systems.
 
-* WebAssembly is unsupported on IBM Z.
+* WebAssembly extensions are not supported on IBM Z and IBM Power Systems.
+
 
 [id="ossm-rn-known-issues-ossm_{context}"]
 == {SMProductShortName} known issues