Update public-ip-upgrade-powershell.md

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cc: @asudbring

Author: cburuzie

articles/virtual-network/ip-services/public-ip-upgrade-powershell.md

@@ -12,6 +12,9 @@ ms.custom: template-how-to, engagement-fy23, devx-track-azurepowershell
 
 # Upgrade a public IP address using Azure PowerShell
 
+>[!Important]
+>On September 30, 2025, Basic SKU public IPs will be retired. For more information, see the [official announcement](https://azure.microsoft.com/updates/upgrade-to-standard-sku-public-ip-addresses-in-azure-by-30-september-2025-basic-sku-will-be-retired/). If you are currently using Basic SKU public IPs, make sure to upgrade to Standard SKU public IPs prior to the retirement date.
+
 Azure public IP addresses are created with a SKU, either Basic or Standard. The SKU determines their functionality including allocation method, feature support, and resources they can be associated with. 
 
 In this article, you'll learn how to upgrade a static Basic SKU public IP address to Standard SKU using Azure PowerShell.