Bitcoin Optech: Newsletter #253 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Burak Keceli, Dave Harding, and Joost Jager to discuss Newsletter #253.

News

• Proposal for a managed joinpool protocol (1:46)
• Transaction relay over Nostr (40:38)

Waiting for confirmation #3: Bidding for block space (1:00:02)

Selected Q&A from Bitcoin Stack Exchange

• Testing pruning logic with bitcoind (1:12:38)
• What's the governing motivation for the descendent size limit? (1:13:19)
• How does it contribute to the Bitcoin network when I run a node with a bigger than default mempool? (1:16:48)
• What is the maximum number of inputs/outputs a transaction can have? (1:21:18)
• Can 2-of-3 multisig funds be recovered without one of the xpubs? (1:23:50)

Releases and release candidates

• Bitcoin Core 25.0 (1:27:05)

Notable code and documentation changes

• Bitcoin Core #27469 (1:30:27)
• Bitcoin Core #27626 (1:32:40)
• Bitcoin Core #25796 (1:35:24)
• Eclair #2668 (1:37:17)
• Eclair #2666 (1:39:20)
• BTCPay Server 97e7e (1:41:56)
• BIPs #1446 (1:43:15)