Bitcoin Core 32 can stall multisig signing on older nodes as fix slips to next patch

Bitcoin Core 32.0’s graphical wallet can interrupt co-signing with older Core wallets by creating transaction files those versions cannot import, according to a user report . The compatibility issue has moved to the 32.1 milestone, while a proposed GUI fix remains open. In the Oct. 14 report, user mjdietzx described an unsupported-version decoding error when loading a file created by the new graphical wallet into pre-32 Core. The GUI offered no version selector. That can stop a workflow in which a newer Core wallet prepares a transaction and an older Core wallet supplies another signature. The mismatch concerns the Partially Signed Bitcoin Transaction, or PSBT, format used to exchange transaction data during signing. The new GUI creates PSBT v2.

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