Comment by spencerhakim

Unless something has changed since I just happened to have checked earlier today, VPC ELBs are still IPv4-only. They return AAAA records on the ipv6 and dualstack subdomains like their classic/non-VPC counterparts (which do fully support IPv6), but the ports aren't open on the returned addresses, so it's not very useful. Maybe someone from Amazon can chime in?