I was confused at the announcement from #FOSDEM that their next years default network will be IPv6 only, because I thought that was already the case for a decade now

and indeed, blog post from 2016:
>and in the recent (three?) years providing an IPv6-only network as the default.

what did they change?!

https://flameeyes.blog/2016/03/15/fosdem-and-the-unrealistic-ipv6-only-network/