Lightning Specification Meeting 2020/04/27

[t-bast]

The meeting will take place on Monday 2020/04/27 at 8pm UTC on IRC #lightning-dev. It is open to the public.

Pull Request Review

• Stuck channels Avoid stuck channels after fee increase with additional reserve #740
• MINIMALIF Make it explicit witness must conform to MINIMALIF #764
• Network pruning BOLT07: prune if oldest channel_update is > 2 weeks old #767

Issues

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

Long Term Updates

• Mempool tx pinning attack (@ariard @TheBlueMatt)
• Anchor outputs (@joostjager)
• Trampoline routing(@t-bast)
• Blinded paths (@t-bast)

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
• Hornet (@cfromknecht)
• Protocol testing framework (@rustyrussell). See the tools/ and tests/events directories in lightning-rfc-protocol-test for details.

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Post-Meeting notes:

Action items

• Finalize BOLT07: prune if oldest channel_update is > 2 weeks old #767 (@cfromknecht)
• Add thoughts and dig up old discussions for Funder's balance can dip back below channel reserve due to race #761 (@Roasbeef)
• Anchor outputs: start the implementation work (c-lightning, eclair, rust-lightning), incorporate tx-pinning mitigations
• Blinded paths: add uniform fees and dummy hops (@t-bast)
• Trampoline: get the discussion going on the PR
• Summarize Hornet's goodies and how they related to recent feature discussion (@cfromknecht)

The full logs can be found here

[t-bast]

Please add topics if there are things you'd like to discuss.