Re: [tor-dev] New Proposal: Preferring IPv4 or IPv6 based on IP Version Failure Count

https://github.com/torproject/torspec/pull/53 https://trac.torproject.org/projects/tor/ticket/27491 https://github.com/torproject/tor/pull/566 https://github.com/torproject/torspec/tree/master/proposals

The subject would make use of the folllowing RFC... Happy Eyeballs Version 2: Better Connectivity Using Concurrency https://tools.ietf.org/html/rfc8305 You probably want to reference it in any relavant proposal, ticket, pull. Below is of minor import... Default Address Selection for Internet Protocol Version 6 (IPv6) https://tools.ietf.org/html/rfc6724