Mark “Murch” Erhardt and Mike Schmidt are joined by Gregory Sanders to discuss ⁠Newsletter #299⁠. News Weak blocks proof-of-concept implementation (0:56) BIP editors update (20:08) Selected Q&A from Bitcoin Stack Exchange Where exactly is the off-by-one difficulty bug? (26:44) How is P2TR different than P2PKH using opcodes from a developer perspective? (32:10) Are replacement transactions larger in size than their predecessors and than non-RBF transactions? (34:15) Are Bitcoin signatures still vulnerable to nonce reuse? (36:59) How do miners manually add transactions to a block template? (39:48) Releases and release candidates LND v0.17.5-beta (41:40) Notable code and documentation changes Bitcoin Core #29850 (46:35)