Independently from this, IPv6 doesn't really work in AWS VPC. For example, ELB / ALB breaks under IPv6 endpoints. A lot of VPC services aren't available on IPv6

Independently from this, IPv6 doesn't really work in AWS VPC. For example, ELB / ALB breaks under IPv6 endpoints. A lot of VPC services aren't available on IPv6. Metadata service has no IPv6 equivalent. I'm sure someone at AWS is thinking of these problems, but unfortunately, there are turtles all the way down.