Lightning Specification Meeting 2022/03/28

[t-bast]

The meeting will take place on Monday 2022/03/28 at 7pm UTC (5:30am Adelaide time) on Libera Chat IRC #lightning-dev. It is open to the public.

A video link is available for higher bandwidth communication: https://meet.jit.si/Lightning-Spec-Meeting

Pull Request Review

• Remove legacy sphinx format BOLT 4: Remove legacy format, make var_onion_optin compulsory. #962
• Clarify mutual close requirements bolt 2: coop-closing clarification #964
• Port conventions for different networks BOLT 1: introduce port convention for different network #968
• Onion messages BOLT 7: Onion message support (features 38/39) #759
• Dual funding interactive-tx: Add dual-funding flow, using the interactive tx protocol (feature 28/29) #851
• Route blinding Route Blinding (Feature 24/25) #765
• Blinded fees Blinded fees #967
• Offers Offers #798
• Add dust exposure threshold Add a max_dust_htlc_exposure_msat #919

Waiting for interop

• Websocket transport websocket address type: allow transport over RFC6455 #891
• Simple turbo channels enablement Explicitly allow funding_locked early, and support alias scids (feat 46/47/50/51) #910
• Don't force close until error is received after channel_reestablish Nodes shouldn't publish their commitment when receiving outdated channel_reestablish #934
• Dynamic DNS support in gossip messages BOLT 7: add gossip address descriptor type DNS hostname #911

Long Term Updates

• Liquidity ads option_will_fund: liquidity ads #878
• Splicing Splice draft (feature 62/63) #863
• Simplified commitment Feature 106/107: option_simplified_update. #867
• Trampoline routing Trampoline Routing (2021 edition) (Feature 56/57) #829 and Trampoline onion format (Feature 56/57) #836
• Upfront payments / DoS protection Hold fees #843
• Peer storage backup Peer backup storage (feature 40/41/42/43) #881
• Anonymous gossip
• Taproot updates

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.

• lnprototest (https://github.com/rustyrussell/lnprototest)

[t-bast]

We're around the time of the year where some countries change time due to daylight savings, make sure to double-check the meeting time (and the next one as well).