upgrade part 2

Author: seligj95

articles/app-service/app-service-hybrid-connections.md

@@ -236,7 +236,15 @@ To use that string in the Hybrid Connection Manager CLI, run `hcm add` with eith
 
 ### Upgrade
 
-There are periodic updates to the Hybrid Connection Manager to fix issues or provide improvements. When upgrades are released, a dialog box appears in the Hybrid Connection Manager GUI at startup. To check for available upgrades with the Hybrid Connection Manager CLI, run `hcm version` and `hcm upgrade`. Applying the upgrade applies the changes and restarts the Hybrid Connection Manager.
+# [Windows](#tab/windows)
+
+There are periodic updates to the Hybrid Connection Manager to fix issues or provide improvements. When upgrades are released, a dialog box appears in the Hybrid Connection Manager GUI at startup. To check for available upgrades with the Hybrid Connection Manager CLI, run `hcm version`. Upgrades must be done using the MSI installer and can't be done using the CLI. Applying the upgrade applies the changes and restarts the Hybrid Connection Manager.
+
+# [Linux](#tab/linux)
+
+There are periodic updates to the Hybrid Connection Manager to fix issues or provide improvements. You don't receive an automatic notification when an upgrade is available. You should periodically run `hcm version` to check for available upgrades. Applying the upgrade applies the changes and restarts the Hybrid Connection Manager.
+
+-----
 
 ## Adding a Hybrid Connection to your app programmatically