Mark “Murch” Erhardt and Mike Schmidt discussed Newsletter #368: News 0:30 Draft BIP for block template sharing 28:07 Trusted delegation of script evaluation Changes to services and client software 33:07 ZEUS v0.11.3 released 33:25 Rust Utreexo resources 34:11 Peer-observer tooling and call to action 37:22 Bitcoin Core Kernel-based node announced 38:23 SimplicityHL released 39:17 LSP plugin for BTCPay Server 39:42 Proto mining hardware and software announced 40:46 Oracle resolution demo using CSFS 41:11 Relai adds taproot support Releases and release candidates 43:09 LND v0.19.3-beta 43:29 Bitcoin Core 29.1rc1 43:55 Core Lightning v25.09rc2 Notable code and documentation changes 44:33 Bitcoin Core #32896 46:57 Bitcoin Core #33106 1:02:49 Core Lightning #8467 1:03:26 Core Lightning #8354 1:04:07 Eclair #3103 1:04:43 Eclair #3134 1:05:56 LDK #3897

Bruno Garcia and Liam Eagen joined Optech to discuss Newsletter #369: News 24:56 Update on differential fuzzing of Bitcoin and LN implementations 0:58 Garbled locks for accountable computing contracts Selected Q&A from Bitcoin Stack Exchange 39:45 Is it possible to recover a private key from an aggregate public key under strong assumptions? 41:24 Are all taproot addresses vulnerable to quantum computing? 45:20 Why cant we set the chainstate obfuscation key? 52:09 Is it possible to revoke a spending branch after a block height? 53:45 Configure Bitcoin Core to use onion nodes in addition to IPv4 and IPv6 nodes? Releases and release candidates 54:22 Bitcoin Core 29.1rc2 56:45 Core Lightning v25.09rc4 Notable code and documentation changes 57:37 Bitcoin Core #31802 1:04:46 LDK #3979 1:06:19 LND #10102 1:07:04 Rust Bitcoin #4907 You can listen on our website: https://bitcoinops.org/en/podcast/2025/09/02/ Fountain: https://fountain.fm/episode/oGMUPbcYR5TSy63a4Zt8 Spotify: https://open.spotify.com/episode/5uox6htE8nFOVXFc3Ju9Qq Apple Podcasts: https://podcasts.apple.com/us/podcast/bitcoin-optech-newsletter-369-recap/id1674626983?i=1000724614662

Bitcoin Optech Newsletter #367 is here: - LND v0.19.3-beta.rc1 - Bitcoin Core 29.1rc1 - Optech Newsletter #367 Podcast https://bitcoinops.org/en/newsletters/2025/08/15/ Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside.fm Tuesday at 16:30 UTC. Join us to discuss or ask questions! https://riverside.fm/studio/bitcoin-optech

Bitcoin Optech newsletter #370 is here: - details the design of Simplicity - links to a draft BIP for adding elliptic curve operations to tapscript - describes the draft BIP for OP_TWEAKADD - Optech Newsletter #370 Podcast https://bitcoinops.org/en/newsletters/2025/09/05/ Russell O’Connor made three posts so far to Delving Bitcoin about “the philosophy and design of the Simplicity language”... https://bitcoinops.org/en/newsletters/2025/09/05/#details-about-the-design-of-simplicity Olaoluwa Osuntokun posted to the Bitcoin-Dev mailing list a link to a draft BIP for adding several opcodes to tapscript that will allow elliptic curve operations to be performed on the script evaluation stack... https://bitcoinops.org/en/newsletters/2025/09/05/#draft-bip-for-adding-elliptic-curve-operations-to-tapscript Jeremy Rubin posted to the Bitcoin-Dev mailing list a link a draft BIP to add OP_TWEAKADD to tapscript... https://bitcoinops.org/en/newsletters/2025/09/05/#draft-bip-for-op-tweakadd Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside.fm Tuesday at 16:30 UTC. Join us to discuss or ask questions! https://riverside.fm/studio/bitcoin-optech

Russell O’Connor, Olaoluwa Osuntokun, and Jeremy Rubin join Optech to discuss Newsletter #370: Changing consensus 37:56 Details about the design of Simplicity 1:52 Draft BIP for adding elliptic curve operations to tapscript 19:23 Draft BIP for OP_TWEAKADD Releases and release candidates 59:40 Core Lightning v25.09 1:00:24 Bitcoin Core 29.1rc2 Notable code and documentation changes 1:00:55 LDK #3726 1:02:24 LDK #4019 1:03:09 LND #9455 1:04:00 LND #10103 1:05:20 HWI #795 You can listen on our website:
https://bitcoinops.org/en/podcast/2025/09/09/ Fountain:
https://fountain.fm/episode/6IP69xVggsPJ4dZtShuf Spotify:
https://open.spotify.com/episode/1InhHmSFSrggcAxafzymWS Apple Podcasts:
https://podcasts.apple.com/us/podcast/bitcoin-optech-newsletter-370-recap/id1674626983?i=1000725872238

You can listen on our website:
https://bitcoinops.org/en/podcast/2025/08/26/ Fountain:
https://fountain.fm/episode/P5UDO600jU5Iva3fHFic Spotify:
https://open.spotify.com/episode/0ZPLyRlgDZvh2kN9WV95pF Apple Podcasts:
https://podcasts.apple.com/us/podcast/bitcoin-optech-newsletter-368-recap/id1674626983?i=1000725591869

Bitcoin Optech Newsletter #369 is here: - shares an update on differential fuzzing of Bitcoin and LN implementations - links to a new paper about garbled locks for accountable computing contracts - summarizes popular Q&A from Stack Exchange - Optech Newsletter #369 Podcast https://bitcoinops.org/en/newsletters/2025/08/29/ Bruno Garcia posted to Delving Bitcoin to describe recent progress and accomplishments of bitcoinfuzz, a library and related data for fuzz testing Bitcoin-based software and libraries... https://bitcoinops.org/en/newsletters/2025/08/29/#update-on-differential-fuzzing-of-bitcoin-and-ln-implementations Liam Eagen posted to the Bitcoin-Dev mailing list about a paper he’s written about a new mechanism for creating accountable computing contracts but based on garbled circuits... https://bitcoinops.org/en/newsletters/2025/08/29/#garbled-locks-for-accountable-computing-contracts Selected Q&A from Bitcoin Stack Exchange: - Is it possible to recover a private key from an aggregate public key under strong assumptions? - Are all taproot addresses vulnerable to quantum computing? - Why cant we set the chainstate obfuscation key? - Is it possible to revoke a spending branch after a block height? - Configure Bitcoin Core to use onion nodes in addition to IPv4 and IPv6 nodes? https://bitcoinops.org/en/newsletters/2025/08/29/#selected-qa-from-bitcoin-stack-exchange Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside.fm Tuesday at 16:30 UTC. Join us to discuss or ask questions! https://riverside.fm/studio/bitcoin-optech

Bitcoin Optech Newsletter #368 is here: - summarizes a draft BIP for block template sharing between full nodes - announces a library that allows trusted delegation of script evaluation - summarizes changes to services/client software - Optech Newsletter #368 Podcast https://bitcoinops.org/en/newsletters/2025/08/22/ Anthony Towns posted to the Bitcoin-Dev mailing list the draft of a BIP for how nodes can communicate to their peers the transactions they would attempt to mine in their next block... https://bitcoinops.org/en/newsletters/2025/08/22/#draft-bip-for-block-template-sharing Josh Doman posted to Delving Bitcoin about a library he’s written that uses a trusted execution environment (TEE) that will only sign a taproot keypath spend if the transaction containing that spend satisfies a script... https://bitcoinops.org/en/newsletters/2025/08/22/#trusted-delegation-of-script-evaluation Changes to services and client software: - ZEUS v0.11.3 released - Rust Utreexo resources - Peer-observer tooling and call to action - Bitcoin Core Kernel-based node announced - SimplicityHL released - LSP plugin for BTCPay Server - Proto mining hardware and software announced - Oracle resolution demo using CSFS - Relai adds taproot support https://bitcoinops.org/en/newsletters/2025/08/22/#changes-to-services-and-client-software Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside.fm Tuesday at 16:30 UTC. Join us to discuss or ask questions! https://riverside.fm/studio/bitcoin-optech

Gloria Zhao and Mike Schmidt were joined by Tadge Dryja and Anthony Towns to discuss Newsletter #366: - Draft BIPs proposed for Utreexo - Continued discussion about lowering the minimum relay feerate - Peer block template sharing to mitigate problems with divergent mempool policies - A watch only wallet PR Review Club - And more You can listen on our website: https://bitcoinops.org/en/podcast/2025/08/12/ Fountain: https://fountain.fm/episode/mb22hz065ESbbtqZvMy6 Spotify: https://open.spotify.com/episode/58sQEBHrZ5Z22iUID6x5Je Apple Podcasts: https://podcasts.apple.com/us/podcast/bitcoin-optech-newsletter-366-recap/id1674626983?i=1000721833977