Bitcoin Optech: Newsletter #266 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by Matt Corallo, Brandon Black, Gregory Sanders, and James O’Beirne to discuss Newsletter #266.

News

• Disclosure of past LN vulnerability related to fake funding (21:11)
• Covenant mashup using `TXHASH` and `CSFS` (1:30)

Selected Q&A from Bitcoin Stack Exchange

• Is there an economic incentive to switch from P2WPKH to P2TR? (34:44)
• What is the BIP324 encrypted packet structure? (37:31)
• What is the false positive rate for compact block filters? (39:23)
• What opcodes are part of the MATT proposal? (40:27)
• Is there a well defined last Bitcoin block? (41:40)
• Why are miners setting the locktime in coinbase transactions? (46:10)
• Why doesn't Bitcoin Core use auxiliary randomness when performing Schnorr signatures? (47:40)

Releases and release candidates

• Core Lightning 23.08 (49:21)
• LND v0.17.0-beta.rc1 (50:24)

Notable code and documentation changes

• Bitcoin Core #27460 (51:16)
• LDK #2248 (53:43)
• LDK #2337 (55:00)
• LDK #2411 (1:00:16)
• LDK #2507 (1:04:46)
• LDK #2478 (1:07:22)
• LND #7904 (1:09:07)