Once v6 reaches the same adoption of v4 then it'd make sense to transition v4 out. I'm guessing addresses will be released and not redistributed again, eventual

Once v6 reaches the same adoption of v4 then it'd make sense to transition v4 out. I'm guessing addresses will be released and not redistributed again, eventually completing a total recall of v4. We're still 2-3 decades at a minimum from that milestone though.