Merge pull request #209218 from JasonFreeberg/patch-124

Update monitor-instances-health-check.md

Author: prmerger-automator[bot]

articles/app-service/monitor-instances-health-check.md

@@ -169,7 +169,7 @@ In the scenario where all instances of your application are unhealthy, App Servi
 
 ### Does Health Check work on App Service Environments?
 
-Yes, on App Service Environments (ASEs), the platform will ping your instances on the specified path and remove any unhealthy instances from the load balancer so requests won't be routed to them. However, currently these unhealthy instances won't be replaced with new instances if they remain unhealthy for 1 hour.
+Yes, health check is available for the App Service Environment v3, but not for versions 1 or 2. If you are using the older versions of the App Service Environment, you can use the [migration feature](environment/migrate.md) to migrate your App Service Environment to version 3.
 
 ## Next steps
 - [Create an Activity Log Alert to monitor all Autoscale engine operations on your subscription](https://github.com/Azure/azure-quickstart-templates/tree/master/demos/monitor-autoscale-alert)