Bitcoin Optech #222

This week’s newsletter describes the block parsing bug affecting BTCD and LND last week, summarizes discussion about a planned Bitcoin Core feature change related to replace by fee, outlines research about validity rollups on Bitcoin, shares an announcement about a vulnerability in the draft BIP for MuSig2, examines a proposal to reduce the minimum size of an unconfirmed transaction that Bitcoin Core will relay, and links to an update of the BIP324 proposal for a version 2 encrypted transport protocol for Bitcoin.  Also included are our regular sections with summaries of changes to services and client software, announcements of new releases and release candidates, and descriptions of notable merges to popular Bitcoin infrastructure projects.

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