Added new note.

Author: Heidilohr

articles/virtual-desktop/whats-new-client-windows.md

@@ -54,6 +54,7 @@ In this release, we've made the following changes:
 - Updates to Teams for Azure Virtual Desktop, including the following:
    - Fixed an issue that caused the application window sharing to freeze or show a black screen in scenarios with Topmost window occlusions.
    - Fixed an issue that caused Teams media optimizations for Azure Virtual Desktop to not load for the ARM64 version of the client.
+- Disabled Universal Plug-and-Play after reports of connectivity issues.
 
 ## Updates for version 1.2.3918