Update public-ip-addresses.md

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cc: @asudbring

Author: cburuzie

articles/virtual-network/ip-services/public-ip-addresses.md

@@ -13,6 +13,9 @@ ms.author: allensu
 
 # Public IP addresses
 
+>[!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. For guidance on upgrading, visit [Upgrading a basic public IP address to Standard SKU - Guidance](public-ip-basic-upgrade-guidance.md).
+
 Public IP addresses allow Internet resources to communicate inbound to Azure resources. Public IP addresses enable Azure resources to communicate to Internet and public-facing Azure services. The address is dedicated to the resource, until it's unassigned by you. A resource without a public IP assigned can communicate outbound. Azure dynamically assigns an available IP address that isn't dedicated to the resource. For more information about outbound connections in Azure, see [Understand outbound connections](../../load-balancer/load-balancer-outbound-connections.md?toc=%2fazure%2fvirtual-network%2ftoc.json).
 
 In Azure Resource Manager, a [public IP](virtual-network-public-ip-address.md) address is a resource that has its own properties.