Subject: Re: [bitcoin-dev] Significant losses by double-spending unconfirmed transactions

From: Mike Hearn <[email-masked]>
Date: Sat, 18 Jul 2015 13:43:14 +0200

>
> What are these pre- and post-Hearn-relay drop rules you are speaking
> about?

He's talking about patches I didn't even write (Gavin and Tom did), but
have included in Bitcoin XT:

   https://github.com/bitcoinxt/bitcoinxt

See the README section starting with "Relaying of double spends"