Public Preview: IPv6 dual-stack support for Azure Bastion

Azure Bastion support for IPv4 and IPv6 dual-stack configurations is now available in public preview. Customers can configure a newly created Bastion deployment with both IPv4 and IPv6 public IP addresses. IPv6 is supported for connections between the user and Azure Bastion. Connections from Azure Bastion to target virtual machines continue to use IPv4\. Existing IPv4-only Bastion deployments cannot currently be converted to dual stack. [Learn more](https://learn.microsoft.com/en-us/azure/bastion/configuration-settings).