Bitcoin Optech newsletter #387 is here: - warns of a wallet migration bug in Bitcoin Core - summarizes a post about using the Ark protocol as an LN channel factory - links to a draft BIP for silent payment descriptors - Optech Newsletter #387 Podcast https://bitcoinops.org/en/newsletters/2026/01/09/ Bitcoin Core posted a notice of a bug in the legacy wallet migration feature in versions 30.0 and 30.1... https://bitcoinops.org/en/newsletters/2026/01/09/#bitcoin… René Pickhardt wrote on Delving Bitcoin about his discussions and ideas around whether Ark’s best use case might be as a flexible channel factory rather than as an end-user payment solution... https://bitcoinops.org/en/newsletters/2026/01/09/#using-a… Craig Raw posted to the Bitcoin-Dev mailing list a proposal for a draft BIP, which defines a new top-level descriptor script expression sp() for silent payments... https://bitcoinops.org/en/newsletters/2026/01/09/#draft-b… Bitcoin Optech will host an audio recap discussion of this newsletter on http://Riverside.fm Tuesday at 17:30 UTC. Join us to discuss or ask questions! https://riverside.com/studio/bitcoin-optech