From rusty at rustcorp.com.au  Tue Feb 12 06:12:45 2019
From: rusty at rustcorp.com.au (Rusty Russell)
Date: Tue, 12 Feb 2019 16:42:45 +1030
Subject: [Lightning-dev] WIP pull requests for feature bit unification and
	TLV bits
Message-ID: <874l99wn4y.fsf@rustcorp.com.au>

Hi all,

        Finally tried to write up the feature bit changes:

        https://github.com/lightningnetwork/lightning-rfc/pull/571

And also start on TLV definition for the onion:

        https://github.com/lightningnetwork/lightning-rfc/pull/572

Feature bits:
-------------

1. Rename local/global to peer/channel.
2. Both get sent in node_announcment (you can look for peers with
   specific things)
3. channel gets sent in channel_announcement (you know you can't send
   though channels with unknown even bits).

I also took a stab at assigning all the 1.1 bits from the wiki.

TLVs:
-----

1. General requirements and format (1 byte type, var_int length).
2. Took a stab at defining switch_chain, switch_ephkey and
   multi_part_payment.

Also added a `9` field to BOLT11 to flag base amp, OG amp, etc.

Cheers,
Rusty.