Lightning Specification Meeting 2020/03/30

[t-bast]

The meeting will take place on Monday 2020/03/30 on IRC #lightning-dev. It is open to the public.

Pull Request Review

• Reply channel range simplification Reply channel range simplification #737
• Stuck channels Avoid stuck channels after fee increase with additional reserve #740
• TLV message extensions Bolt 1: Specify that extensions to existing messages must use TLV #754
• Wumbo advisory for scaling confirmations Add advisory section for wumbo channels confirmations #746

Issues

• Update fee concurrency Funder's balance can dip back below channel reserve due to race #761

Long Term Updates

• Anchor outputs (@joostjager)
• Rendez-vous (@cdecker)
• Blinded paths (@t-bast)
• Current status of the trampoline routing proposal (@t-bast)
• Hornet (@cfromknecht)
• Protocol testing framework (@rustyrussell). See the tools/ and tests/events directories in lightning-rfc-protocol-test for details.

Backlog

The following are topics that we should discuss at some point, so if we have time to discuss them great, otherwise they slip to the next meeting.

• Upfront payments / DoS protection

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Post-Meeting notes:

Action items

• Merge Reply channel range simplification #737 and Bolt 1: Specify that extensions to existing messages must use TLV #754
• Finalize Avoid stuck channels after fee increase with additional reserve #740
• Finalize Add advisory section for wumbo channels confirmations #746
• Anchor outputs: continue discussion on mailing list and PR
• Trampoline and rendezvous: provide write-up in "proposals" format
• Summarize Hornet's goodies and how they related to recent feature discussion (@cfromknecht)

The full logs can be found here

[joostjager]

Should probably select one or two long term updates. Looking back at previous meetings, we didn't have time to cover much of those. Or at least arrange them in the priority order.

[t-bast]

That's true, I put everything that's been pending since previous meetings but it's likely we'll only do anchor + rendezvous/blinded, I'll re-arrange the order