Bitcoin Optech newsletter #420 is here:
- relays advance notice of a planned Core Lightning security release
- summarizes a discussion about opt-in replay protection for potential future forks
- notes that the Hardware Wallet Interface (HWI) project will enter maintenance mode
- describes a request for comments on using block-range filters
- Optech Newsletter #420 Podcast https://bitcoinops.org/en/newsletters/2026/08/28/
Christian Decker described a forthcoming CLN v26.06.7 point security release, noting no vulnerability is known to be actively exploited...
Moonsettler posted to Delving Bitcoin to discuss the possibility of introducing an opt-in replay protection mechanism in case of future forks...
https://bitcoinops.org/en/newsletters/2026/08/28/#discussion-on-universal-opt-in-replay-protection
Ava Chow (achow101) announced that the Hardware Wallet Interface (HWI) project will scale back to maintenance-only work and eventually be archived...
https://bitcoinops.org/en/newsletters/2026/08/28/#hwi-repository-to-enter-maintenance-mode
Optout posted to Delving Bitcoin a request for comments (RFC) on a proposal to use block-range filters to reduce the total download size when using compact block filters...
https://bitcoinops.org/en/newsletters/2026/08/28/#request-for-comments-on-using-block-range-filters
Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 16:30 UTC.