AZ498361 - Generally Available: ExpressRoute - Auto-assigned Public IP for ExpressRoute Gateways

All newly deployed ExpressRoute Virtual Network Gateways will use auto-assigned Public IPs. This change simplifies gateway configuration by removing the requirement to explicitly assign a Public IP address. 

This model streamlines deployment and improves consistency across gateway types. This feature eliminates the need for customers to manually manage Public IPs for new gateways, helping reduce operation effort and overhead.