IsIPv6 - What does this built-in function do for your application?

The CFBreak 2025-18 email newsletter published May 9, 2025 highlighted isIPV6() as the CFDocs 'Function of the Week'. This built-in function was added to Adobe ColdFusion 9 back in 2009. The description is 'Determines whether the host supports IPv6.' The argument's name is 'hostname' and described as 'IP address to...