Bitcoin Optech newsletter #415 is here:

- describes a draft BIP for full aggregation of BIP340 signatures
- summarizes changes to services/client software
- Optech Newsletter #415 Podcast
https://bitcoinops.org/en/newsletters/2026/07/24/

Fabian Jahr posted to the Bitcoin-Dev mailing list about a new draft BIP for full aggregation of BIP340 schnorr signatures, a standard for the DahLIAS aggregate signature scheme...
https://bitcoinops.org/en/newsletters/2026/07/24/#draft-bip-for-full-aggregation-of-bip340-signatures

Changes to services and client software:

- Wasabi Wallet 2.8.0 released
- Coinswap v0.2.2 released
- Go secp256k1 library announced
- ASMap dashboard announced
- Wavelength alpha released
https://bitcoinops.org/en/newsletters/2026/07/24/#changes-to-services-and-client-software

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 16:30 UTC.