On Sun, Jan 31, 2016 at 01:32:26AM +1000, Anthony Towns via bitcoin-dev wrote:
> On Thu, Jan 28, 2016 at 01:51:24PM -0500, Peter Todd via bitcoin-dev wrote:
> > While Pieter Wuille's segwit branch(1) doesn't yet implement a fix for
> > the above problem, the obvious thing to do is to add a new service bit
> > such as NODE_SEGWIT, and/or bump the protocol version, and for outgoing
> > peers only connect to peers with segwit support.
> If I'm following the code right, the segwit branch has a fHaveWitness
> flag for each connection, which is set when a HAVEWITNESS message comes
> from the peer, and HAVEWITNESS is sent as part of handshaking. BIP144
> suggests maybe this should be changed to a service bit though:

Oh, there's a PR to change this to a NODE_WITNESS service bit:

https://github.com/sipa/bitcoin/pull/55

Cheers,
aj