Hi,

> Does this functionality change peer selection?

This bit will be used for selecting outgoing peers in Bitcoin XT.

On Mon, Mar 7, 2016 at 9:51 PM, Gregory Maxwell via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> On Mon, Mar 7, 2016 at 8:06 PM, G. Andrew Stone via bitcoin-dev
> <bitcoin-dev@lists.linuxfoundation.org> wrote:
> > The Bitcoin Unlimited client needs a services bit to indicate that the
> node
> > is capable of communicating thin blocks.  We propose to use bit 4 as
> AFAIK
> > bit 3 is already earmarked for Segregated Witness.
>
> Does this functionality change peer selection?  If not, the preferred
> signaling mechanism is probably the one in BIP 130.
>
> Otherwise, I think the standard method for getting numbers has been to
> write a BIP documenting the usage. I don't know if that is intentional
> or just how things have previously happened; and I don't have much of
> an opinion on it.
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