Announcements

Please join us for the first BitDevs Joburg Socratic Seminar!

Thanks to ThunderPunch ⚡👊 for sponsoring the venue and snacks 🍕❤️

Presentation

• Welcome to BitDevs Joburg - @dunxen

Mailing Lists, Meetings and Bitcoin Optech

Optech

• Newsletter #252

Pull Requests and repo updates

LDK

• LDK #2204 adds the ability to set custom feature bits for announcing to peers, or for use when attempting to parse a peer’s announcement.
• LDK #1794 begins adding support for dual funding, starting with methods needed for the interactive funding protocol that is used for dual funding.

New Releases

• Bitcoin Core 25.0
  • P2P and network changes: Mempool policy is loosened to allow for transactions of non-witness size 65 bytes (previously 82 bytes) and above to be considered standard and propagated by nodes.

Miscellaneous

• Route blinding - Better privacy for recipients on the Lightning Network.
• Schnorr signatures - New (old) kid on the block.
• ECDSA signatures - Why they were created and why they’re weird.
• Discreet Log Contracts - Spelling, how schnorr makes them possible (easier), and use cases.
• BIP 39 - Shallow dive, criticisms, and why the Bitcoin Core wallet still doesn’t support it.