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Bitcoin Optech newsletter #418 is here:

  • describes a proposed contract protocol for mitigating Lightning Network channel jamming
  • reports on the availability of static Bitcoin Core binaries for testing
  • summarizes a change replacing Bitcoin Core’s per-peer transaction rate-limiting with a global approach
  • Optech Newsletter #418 Podcast
    https://bitcoinops.org/en/newsletters/2026/08/14/

Antoine Riard posted to Delving Bitcoin a new approach to mitigate channel jamming on the Lightning Network...
https://bitcoinops.org/en/newsletters/2026/08/14/#conditional-message-transfer-contract-to-solve-jamming

Michael Ford (fanquake) posted to the Bitcoin-Dev mailing list announcing test builds of static Bitcoin Core release binaries produced using the project’s existing Guix infrastructure...
https://bitcoinops.org/en/newsletters/2026/08/14/#static-bitcoin-core-binaries-available-for-testing

Anthony Towns posted to Delving Bitcoin announcing the merge of Bitcoin Core #34628, which replaces the per-peer transaction rate-limiting with a global approach...
https://bitcoinops.org/en/newsletters/2026/08/14/#replacing-per-peer-transaction-rate-limiting-with-global-rate-limits

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

Core Lightning #9150 introduces impressions, a new type of liquidity information that records successful payments through a channel and allows the askrene RPC command (see Newsletter #316) to adjust its liquidity estimates for subsequent routing attempts.

Is that askrene command referring also to "ask" Rene Pickhardt ? 😂😂😂😂😂

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Yes, it's named for his min-cost-flow research! Rene generally knows best.

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1 sat \ 0 replies \ @fifoofa 1h -30 sats

Riard's been hammering at jamming for years so him moving from analysis to an actual contract protocol is the headline. only way to actually stop it is make a jammer pay for the slot they hold hostage, asking nodes to play nice never did. the global rate limit swap's quieter but per peer limits were trivially gameable so that one's overdue