Bitcoin Optech newsletter #381 is here:

- looks at an analysis of how block propagation times may affect miner revenue
- describes a new approach for resolving protocols where multiple parties share funds
- summarizes changes to services/client software
- Optech Newsletter #381 Podcast
https://bitcoinops.org/en/newsletters/2025/11/21/

Antoine Poinsot posted to Delving Bitcoin about modeling stale block rates and how block propagation time affects a miner’s revenue as a function of its hashrate...
https://bitcoinops.org/en/newsletters/2025/11/21/#modeling-stale-rates-by-propagation-delay-and-mining-centralization

ZmnSCPxj posted to Delving Bitcoin about private key handover, an optimization that protocols can implement when funds, previously owned by two parties, need to be refunded to a single entity...
https://bitcoinops.org/en/newsletters/2025/11/21/#private-key-handover-for-collaborative-closure

Changes to services and client software:
- Arkade launches
- Mempool monitoring mobile application
- Web-based policy and miniscript IDE
- Phoenix Wallet adds taproot channels
- Nunchuk 2.0 launches
- LN gossip traffic analysis tool announced
https://bitcoinops.org/en/newsletters/2025/11/21/#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