Learn Editor: Update rdp-shortpath.md

Author: ridalwan

articles/virtual-desktop/rdp-shortpath.md

@@ -189,8 +189,23 @@ The following sections contain the source, destination and protocol requirements
 
 > [!NOTE]
 > For a relayed connection with TURN, the IP subnet `20.202.0.0/16` is shared with Azure Communication Services. However, Azure Virtual Desktop and Windows 365 will transition to `51.5.0.0/16`, which is dedicated exclusively to these services. We recommend you configure both ranges in your network environment now to ensure a seamless transition. 
->  
-> If you want to wait to use the dedicated subnet, please follow the steps in [Configure host pool networking settings](configure-rdp-shortpath.md#configure-host-pool-networking-settings) and set **RDP Shortpath for public network (via TURN/relay)** to **Disabled**. Alternatively you can disable UDP on the local device, but that will disable UDP for all connections. To disable UDP on the local device, follow the steps in [Check that UDP is enabled on Windows client devices](configure-rdp-shortpath.md#check-that-udp-is-enabled-on-windows-client-devices), but set **Turn Off UDP On Client** to **Enabled**. If you block the IP range `20.202.0.0/16` on your network and are using VPN applications, it might cause disconnection issues.
+ 
+> If you want to wait to use the dedicated subnet, please follow the steps in [Configure host pool networking settings](configure-rdp-shortpath.md#configure-host-pool-networking-settings) and set **RDP Shortpath for public network (via TURN/relay)** to **Disabled**. Alternatively you can disable UDP on the local device, but that will disable UDP for all connections. To disable UDP on the local device, follow the steps in [Check that UDP is enabled on Windows client devices](configure-rdp-shortpath.md#check-that-udp-is-enabled-on-windows-client-devices), but set **Turn Off UDP On Client** to **Enabled**. If you block the IP range `20.202.0.0/16` on your network and are using VPN applications, it might cause disconnection issues.  
+>   
+> For a relayed connection with TURN, the IP subnet **20.202.0.0/16** is shared with Azure Communication Services. However, **Azure Virtual Desktop and Windows 365 will transition to the dedicated IP range 51.5.0.0/16**, which is exclusively reserved for these services.
+> **What to expect:** Starting **June 15**, Microsoft will begin rolling out the new TURN relay IP range **51.5.0.0/16** across **40 Azure regions**. This upgrade enhances **RDP Shortpath for public networks (via TURN/Relay)** connectivity, delivering faster, more reliable performance for Azure Virtual Desktop (AVD) and Windows 365 (W365) users.
+> **What admins should do:** To ensure uninterrupted service and optimal performance, administrators should:
+> - **Ensure accessibility**: Make sure the 51.5.0.0/16 subnet is accessible from all networks used for AVD and W365 connectivity. This includes both on-premises and cloud environments.
+> - **Use the ‘WindowsVirtualDesktop’ service tag**: This tag now includes the new subnet, simplifying firewall and network rule configuration.
+> - **Optimize traffic flow**:
+>    - Avoid TLS inspection on this traffic, as it is already encrypted and inspection can degrade performance.
+>       - Ensure traffic is **locally egressed**—routed directly to Microsoft’s infrastructure without unnecessary detours.
+>          - **Bypass VPNs, proxies, and Secure Web Gateways (SWGs)** for this traffic to reduce latency and improve reliability.
+>             - Use **User Defined Routes (UDRs)** in Azure to direct traffic to the internet instead of through virtual firewalls when needed.
+> **Supported regions:** The new TURN relay infrastructure is being deployed in 40 regions, including:
+> - **Americas**: South Central US, East US, West US, Canada Central, Brazil South, Mexico Central
+> - **EMEA**: UK South, West Europe, North Europe, France Central, Germany West Central, Switzerland North, Norway East, Italy North, Poland Central, Spain Central, South Africa North
+> - **Asia Pacific**: South India, Central India, UAE North, UAE Central, Southeast Asia, Korea Central, Korea South, Taiwan North, Israel Central, Australia East, Australia Southeast, Japan East, Japan West
 
 #### Session host virtual network