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AR0w

OP_CAT

pietro1861

Bitcoin Optech Newsletter #247

ssaurel

Bitcoin Optech Newsletter #266 Recap Podcast

BITC0IN

Bitcoin Optech Newsletter #380 Recap Podcast

> Mark @Murch Erhardt and Mike @schmidty are joined by @TheCharlatan to discuss Newsletter #380.
>
> https://d3ctxlq1ktw2nl.cloudfront.net/staging/2025-10-18/412728425-44100-2-e3752b27fd573.m4a
>
> ## News
>
> No significant news this week was found on the Bitcoin-Dev or Lightning-Dev mailing lists.
>
> ## Releases and release candidates
>
> - LND 0.20.0-beta.rc4 (1:30) 
>
> ## Notable code and documentation changes
>
> - Bitcoin Core #30595 (2:56) 
> - Bitcoin Core #33443 (28:03) 
> - Core Lightning #8656 (29:42) 
> - Core Lightning #8671 (30:22) 
> - LDK #4204 (33:09) 
> - BIPs #2022 (34:45) 

0xbitcoiner

Bitcoin Optech Newsletter #370 Recap Podcast

Russell O’Connor, Olaoluwa Osuntokun, and Jeremy Rubin join Optech to discuss Newsletter #370:

- Simplicity
- 4 proposed op codes for doing Elliptic Curve Operations in Bitcoin Script
- Draft BIP for OP_TWEAKADD
- and more

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

schmidty

Bitcoin Optech Newsletter #306

BitcoinIsTheFuture

Guide for Wallets Employing Bitcoin Core 28.0 Policies

Rsync25

Bitcoin Optech Newsletter #261

Bitcoin Optech Newsletter #288

Bitcoin Optech Newsletter #229

verbiricha

TheCharlatan joined Optech to discuss Newsletter #380:

- The Bitcoin Kernel
- And more

You can listen on our website:
https://bitcoinops.org/en/podcast/2025/11/18/

Fountain:
https://fountain.fm/episode/Qmqqq6fCDHTZt1SL0xxi

Spotify:
https://open.spotify.com/episode/5qGvgMkll7x3KQviU8Vm65

Apple Podcasts:
https://podcasts.apple.com/us/podcast/bitcoin-optech-newsletter-380-recap/id1674626983?i=1000737307431

Changing Consensus, vaults, peer negotiation  - Bitcoin Optech Newsletter #386

Bitcoin Optech newsletter #386 is here:

- summarizes a vault-like scheme using blinded MuSig2
- describes a proposal for Bitcoin clients to announce and negotiate support for new P2P features
- links to 2106 timestamp overflow discussion and considerations around BIP54
- notes a CTV activation meeting and CTV footgun discussion
- summarizes the OP_CHECKCONSOLIDATION proposal
- links to a report of hash-based post-quantum signature schemes
- Optech Newsletter #386 Podcast
https://bitcoinops.org/en/newsletters/2026/01/02/

Jonathan T. Halseth posted to Delving Bitcoin a prototype of a vault-like scheme using blinded co-signers. Unlike traditional setups using co-signers, this scheme uses a blinded version of MuSig2 to ensure the signers know as little as possible about the funds they are involved in signing...
https://bitcoinops.org/en/newsletters/2026/01/02/#building-a-vault-using-blinded-co-signers

Anthony Towns posted to the Bitcoin-Dev mailing list about a proposal for a new BIP to define a P2P message that would allow peers to announce and negotiate support for new features...
https://bitcoinops.org/en/newsletters/2026/01/02/#peer-feature-negotiation

Asher Haim posted to the Bitcoin-Dev mailing list asking Bitcoin developers to act promptly to prepare for a migration from uint32 to uint64 block timestamps...
https://bitcoinops.org/en/newsletters/2026/01/02/#year-2106-timestamp-overflow-uint64-migration

Josh Doman posted to the Bitcoin-Dev mailing list and Delving Bitcoin asking whether it’s might be worthwhile to modify the consensus cleanup proposal to be more permissive to odd block timestamp behavior to allow a potential soft fork solution to the 2106 block timestamp overflow issue...
https://bitcoinops.org/en/newsletters/2026/01/02/#relax-bip54-timestamp-restriction-for-2106-soft-fork

Chris Stewart posted to Delving Bitcoin a discussion of a “footgun” with OP_CHECKTEMPLATEVERIFY (CTV)...
https://bitcoinops.org/en/newsletters/2026/01/02/#understanding-and-mitigating-a-ctv-footgun

Developer 1440000bytes hosted a CTV (BIP119) activation meeting...
https://bitcoinops.org/en/newsletters/2026/01/02/#ctv-activation-meeting

billymcbip proposed an opcode specifically optimized for consolidations. OP_CHECKCONSOLIDATION (CC) would evaluate to 1 if and only if it’s executed on an input with the same scriptPubKey as an earlier input in the same transaction...
https://bitcoinops.org/en/newsletters/2026/01/02/#op-checkconsolidation-to-enable-cheaper-consolidations

Mikhail Kudinov and Jonas Nick posted to the Bitcoin-Dev mailing list about their work on evaluating hash-based signatures for use in Bitcoin...
https://bitcoinops.org/en/newsletters/2026/01/02/#hash-based-signatures-for-bitcoin-s-post-quantum-future

Bitcoin Optech will host an audio recap discussion of this newsletter on http://Riverside.fm Tuesday at 17:30 UTC. Join us to discuss or ask questions!
https://riverside.com/studio/bitcoin-optech

Bitcoin Optech Newsletter #263

lpop4254

Bitcoin Optech Newsletter #305

bitdevs

Bitcoin Optech Newsletter #198

Bitcoin Optech Newsletter #180: 2021 Year-in-Review Special

k00b

Bitcoin Optech Newsletter #205

Changing consensus - Bitcoin Optech Newsletter #383

Bitcoin Optech newsletter #383 is here:

- describes a fixed vulnerability affecting the NBitcoin library
- summarizes the LNHANCE soft fork proposal
- relays a call to action to benchmark Bitcoin script execution under GSR's varops budget
- highlights discussion of optimizations to SLH-DSA (SPHINCS) post-quantum signatures
- Optech Newsletter #383 Podcast
https://bitcoinops.org/en/newsletters/2025/12/05/

Bruno Garcia posted to Delving Bitcoin about a theoretical consensus failure in NBitcoin that could occur when using OP_NIP...
https://bitcoinops.org/en/newsletters/2025/12/05/#consensus-bug-in-nbitcoin-library

Moonsettler proposes a soft fork for LNHANCE now that all four of its constituent opcodes have updated BIPs and reference implementations...
https://bitcoinops.org/en/newsletters/2025/12/05/#lnhance-soft-fork

Julian posted a call to action to benchmark Bitcoin script execution under the varops budget...
https://bitcoinops.org/en/newsletters/2025/12/05/#benchmarking-the-varops-budget

Continuing the discussions around hardening Bitcoin against quantum computing, conduition presented his work on optimizing the SPHINCS signing algorithm...
https://bitcoinops.org/en/newsletters/2025/12/05/#slh-dsa-sphincs-post-quantum-signature-optimizations

Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside.fm Tuesday at 17:30 UTC. Join us to discuss or ask questions!
https://riverside.fm/studio/bitcoin-optech


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