A workable solution would have been to promote the "[address]:port" representation for both IPv4 and IPv6 after IPv6 was introduced. Then we'd have a universal

A workable solution would have been to promote the "[address]:port" representation for both IPv4 and IPv6 after IPv6 was introduced. Then we'd have a universal way to represent UDP and TCP endpoints. It's kind of mental that my browser will accept https://1.1 https://1.1 today but not https://[1.0.0.1] https://[1.0.0.1]