Thread was pretty much a greenfield deployment at the time, so it use of IPv6 was easy to specify. There was now legacy IPv4 to support or otherwise it would probably be a mess as well.
WarOnPrivacy•18h ago
turning off IPv4 ... was harder than I expected it would be
This is followed by reasonable reasons they struggled to unwind themselves from IPv4 (for the experiment) - but eventually got it worked out.
Conversely: When I hotspot from my phone, T-Mobile frequently makes that an IPv6-only experience.
sybercecurity•20h ago