Bitcoin Optech: Newsletter #417 Recap

<p>Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Conduition, Ram, and Fabian Jahr to discuss <a href="https://bitcoinops.org/en/newsletters/2026/08/07/">Newsletter #417</a>.</p><p><br></p><p><strong>News</strong></p><p>● Draft BIP for stale tip relay (29:26) </p><p><br></p><p><strong>Changing consensus</strong></p><p>● CISA for taproot keypath spends (BIP460) (40:38) </p><p>● Segwit commitment to post-quantum witness data (57:51) </p><p>● PQC output type discussion (1:45) </p><p>● Input-triggered transaction expiry (1:03:36) </p><p>● Layered quantum recovery of hashed addresses (21:53) </p><p>● Segregated Data (SegData) BIP draft (1:08:33) </p><p><br></p><p><strong>Releases and release candidates</strong></p><p>● Libsecp256k1 0.8.0 (1:15:24) </p><p><br></p><p><strong>Notable code and documentation changes</strong></p><p>● Bitcoin Core #35501 (1:18:10) </p><p>● Core Lightning #9298 (1:22:47) </p><p>● Core Lightning #9353 (1:25:02) </p><p>● Eclair #3336 (1:26:15) </p><p>● LND #10942 (1:27:53) </p><p>● LND #10992 (1:29:35) </p><p>● Rust Bitcoin #6364 (1:31:55) </p><p>● Rust Bitcoin #6642 (1:33:22) </p><p>● BTCPay Server #7491 (1:36:52) </p><p>● BTCPay Server #7488 (1:38:35) </p><p><br></p>