@flameeyes @dalias IPv4 is seriously falling out though, not only it means slower traffic on several networks (due to things like CGNAT or worse) but there's also some IPv4-less networks.

It's a mess of a migration (reminds me of python2) but there's 0 excuses for things like Docker, a software written merely 10 years ago to not have IPv6 support, specially as it feels like a feature that would be critical in containers so you can actually give routable IPs to containers (which doesn't means you can't firewall them).