This week’s newsletter includes our regular sections summarizing popular questions and answers from Bitcoin Stack Exchange, announcing new software releases and release candidates, and describing recent changes to Bitcoin infrastructure software.


No significant news this week was found on the Bitcoin-Dev or Lightning-Dev mailing lists.

Selected Q&A from Bitcoin Stack Exchange

Bitcoin Stack Exchange is one of the first places Optech contributors look for answers to their questions—or when we have a few spare moments to help curious or confused users. In this monthly feature, we highlight some of the top-voted questions and answers posted since our last update.

Releases and release candidates

New releases and release candidates for popular Bitcoin infrastructure projects. Please consider upgrading to new releases or helping to test release candidates.

  • LND 0.15.0-beta is a release for the next major version of this popular LN node. It adds for invoice metadata which can be used by other programs (and potentially future versions of LND) for stateless invoices and adds support to the internal wallet for receiving and spending bitcoins to P2TR keyspend outputs, along with experimental MuSig2 support.

  • Core Lightning 0.11.2 is a bug fix release of the LN node. Upgrading is “highly recommended” by the Core Lightning developers.

Notable code and documentation changes

Notable changes this week in Bitcoin Core, Core Lightning, Eclair, LDK, LND, libsecp256k1, Hardware Wallet Interface (HWI), Rust Bitcoin, BTCPay Server, BDK, Bitcoin Improvement Proposals (BIPs), and Lightning BOLTs.

  • Core Lightning #5306 updates multiple APIs to consistently use the name “msat” for millisatoshis and also returns JSON values in those fields as numbers. Some fields are renamed to provide consistencies with other fields. The old behavior is deprecated and so will remain available temporarily.

  • LDK #1531 begins using anti fee sniping for LN funding transactions.