alt Hacker NewsI honestly think GitHub and AWS are the two biggest blockers to IPv6 left. Sure your public web servers might need IPv4 for a long while yet, but all these backend microservices and CI builds etc could all be v6 only, except they need to pull stuff from GitHub or certain AWS services.
It's particularly aggravating with AWS, since they charge for IPv4 addresses yet many of their services aren't IPv6 capable.