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Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Hardfork bit BIP
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> On Feb 7, 2016, at 2:27 PM, <jl2012@xbt.hk> <jl2012@xbt.hk> wrote:
>=20
> Normal version number only suggests softforks, which is usually not a conc=
ern for SPV clients.
Soft forks affect the security of low-confirmation (zero or one) transaction=
s sent to SPV wallets even more than hard forks, and because many users and b=
usinesses choose convenience over airtight security I would argue transactio=
n validation rule changes are a VERY big concern for lightweight clients.=
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