add guidance around API version

Author: mrbullwinkle

articles/azure-monitor/faq.md

@@ -251,6 +251,10 @@ See the [release notes](app/release-notes.md) for the SDK appropriate to your ty
 ### <a name="update"></a>How can I change which Azure resource my project sends data to?
 In Solution Explorer, right-click `ApplicationInsights.config` and choose **Update Application Insights**. You can send the data to an existing or new resource in Azure. The update wizard changes the instrumentation key in ApplicationInsights.config, which determines where the server SDK sends your data. Unless you deselect "Update all," it will also change the key where it appears in your web pages.
 
+### Can I use `providers('Microsoft.Insights', 'components').apiVersions[0]` in my Azure Resource Manager deployments?
+
+We do not recommend using this method of populating the API version. The newest version can represent preview releases which may contain breaking changes. Even with newer non-preview releases, the API versions are not always backwards compatible with existing templates, or in some cases the API version may not be available to all subscriptions.
+
 ### What is Status Monitor?
 
 A desktop app that you can use in your IIS web server to help configure Application Insights in web apps. It doesn't collect telemetry: you can stop it when you are not configuring an app.