The syntax of records.config has IPv6 and transparency as mutually exclusive options. This should be changed.
Origin-server side IPv6 support
Allow Per-transaction Transparency (TProxy) Override
Make the cluster interface configurable
proxy.local.incoming_ip_to_bind is superfluous
improve ssl port documentation
The 3.1.4 ATS build - trafficserver is broken from 3.0.2 and does not listen on the IPv6 interface when server_port_attr is set to =6