Bitcoin Optech: Newsletter #313 Recap

Mark “Murch” Erhardt and Mike Schmidt discuss ⁠Newsletter #313⁠.

News

• Varied discussion of free relay and fee bumping upgrades (0:31)

Selected Q&A from Bitcoin Stack Exchange

• Why is restructure of mempool required with cluster mempool? (29:54)
• DEFAULT_MAX_PEER_CONNECTIONS for Bitcoin Core is 125 or 130? (36:32)
• Why do protocol developers work on maximizing miner revenue? (38:34)
• Is there an economic incentive to use P2WSH over P2TR? (42:26)
• How many blocks per second can sustainably be created using a time warp attack? (45:30)
• pkh() nested in tr() is allowed? (49:01)
• Can a block more than a week old be considered a valid chain tip? (51:25)
• SIGHASH_ANYONECANPAY mediated tx modification (57:35)
• Why does RBF rule #3 exist? (1:00:35)

Releases and release candidates

• BDK 1.0.0-beta.1 (1:02:05)

Notable code and documentation changes

• Bitcoin Core #30320 (1:02:58)
• Bitcoin Core #29523 (1:07:42)
• Core Lightning #7461 (1:10:03)
• Eclair #2881 (1:11:06)