Subject: Re: [bitcoin-dev] Hardfork bit BIP

From: Gavin <[email-masked]>
Date: Sun, 7 Feb 2016 15:20:27 -0500

> On Feb 7, 2016, at 2:27 PM, <[email-masked]> <[email-masked]> wrote:
> 
> Normal version number only suggests softforks, which is usually not a concern for SPV clients.

Soft forks affect the security of low-confirmation (zero or one) transactions sent to SPV wallets even more than hard forks, and because many users and businesses choose convenience over airtight security I would argue transaction validation rule changes are a VERY big concern for lightweight clients.