Mark “Murch” Erhardt and Dave Harding are joined by Matt Morehouse and 0xB10C to discuss Newsletter #339.News● Vulnerability in LDK claim processing (0:47)● Replacement cycling attacks with miner exploitation (17:28)● Updated stats on compact block reconstruction (23:56)Selected Q&A from Bitcoin Stack Exchange● Who uses or wants to use PSBTv2 (BIP370)? (32:38)● In the bitcoin's block genesis, which parts can be filled arbitrarily? (34:41)● Lightning force close detection (36:47)● Is a segwit-formatted transaction with all inputs of non-witness program type valid? (40:01)● P2TR Security Question (41:41)● What exactly is being done today to make Bitcoin quantum-safe? (44:27)● What are the harmful effects of a shorter inter-block time? (47:57)● Could proof-of-work be used to replace policy rules? (51:19)● How does MuSig work in real Bitcoin scenarios? (54:54)● How does the -blocksxor switch that obfuscates the blocks.dat files work? (57:18)● How does the related key attack on Schnorr signatures work? (59:42)Releases and release candidates● LDK v0.1.1 (1:01:19)Notable code and documentation changes● Bitcoin Core #31376 (1:03:24)● Bitcoin Core #31583 (1:04:48)● Bitcoin Core #31590 (1:05:40)● Eclair #2982 (1:07:17)● BDK #1614 (1:11:39)● BOLTs #1110 (1:12:08)

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