Announcements

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General Links

• Bitcoin Optech
• Bitcoin Core PR Review Club
• bitcoin-dev Mailing List
• lightning-dev Mailing List

Mailing Lists, Meetings and Bitcoin Optech

Mailing Lists

bitcoin-dev

• Ark: An Alternative Privacy-preserving Second Layer Solution
• On adaptor security (in protocols)
• proposal: new opcode OP_ZKP to enable ZKP-based spending authorization
• Merkleize All The Things
• Bitcoin Core maintainers and communication on merge decisions
• Should we as developers reject non-standard Taproot transactions from full nodes?
• tx max fee
• Witness script validation to reject arbitrary data
• Responsible disclosures and Bitcoin development
• libsecp256k1 0.3.2 released
• ZeroSync: Introducing Validity Proofs to Bitcoin
• Coinjoin with less steps using ALL|ANYONECANPAY

lightning-dev

• HTLC Endorsment for Jamming Mitigation
• Call for Review - LSPSpec LSPS1 LSPS2
• Liquidity griefing for 0-conf dual-funded txs

Meetings

• Bitcoin PR Review Club
  • #27501 Add getprioritisationmap, delete a mapDeltas entry when delta==0
  • #26485 Accept options as named-only parameters
  • #27600 Allow inbound whitebind connections to more aggressively evict peers when slots are full
  • Testing Bitcoin Core 25.0 Release Candidates

Optech

• Newsletter #249, audio recap
• Newsletter #250, audio recap
• Newsletter #251, audio recap
• Newsletter #252, audio recap

CVEs and Research

InfoSec

• Ledger Recover Feature
• Threat Model
• Threat Model - Genuineness
• Threat Model - Secure Display and Inputs
• Threat Model - Physical Resistance
• Threat Model - PIN Security Mechanism
• Threat Model - Random Number Generation
• Threat Model - Confidentiality of Seed and Private Keys
• Threat Model - Confidentiality and Integrity
• Threat Model - Transport Security
• Threat Model - App Isolation
• Threat Model - User Content

Pull Requests and repo updates

Bitcoin Core

• New Mempool Design
• Improve performance of p2p inv to send queues
• Parallel compact block downloads, take 3
• Implement Mini version of BlockAssembler to calculate mining scores
• add ryanofsky to trusted-keys
• rpc: add descriptorprocesspsbt rpc
• wallet: improve IBD sync time by skipping block scanning prior birth time
• wallet: when a block is disconnected, update transactions that are no longer conflicted

LND

• Add config options for custom features bits
• multi: accept memo note when opening channel

LDK

• Support broadcasting multiple transactions at once
• Implement pending claim rebroadcast on force-closed channels
• Add function for updating network graph with announcement with no UTXO resolver
• Limit route hints to three channels
• Create and Sign PSBTs for spendable outputs
• Dual funding and interactive tx construction wire messages
• Support for custom feature bits
• Post-anchor: do not aggregate claim of revoked output

New Releases

• Bitcoin Core 23.2
• Bitcoin Core 24.1
• Bitcoin Core 25.0 Release Candidates

Miscellaneous

• mempool.space announced an accelerator service
• Introducing Phantom Node Payments