{"id":14808,"date":"2026-10-22T18:24:50","date_gmt":"2026-10-22T18:24:50","guid":{"rendered":"https:\/\/cryptonews.uk.com\/?p=14808"},"modified":"2026-10-22T18:24:50","modified_gmt":"2026-10-22T18:24:50","slug":"bitcoin-core-32-can-stall-multisig-signing-on-older-nodes-as-fix-slips-to-next-patch","status":"publish","type":"post","link":"https:\/\/cryptonews.uk.com\/?p=14808","title":{"rendered":"Bitcoin Core 32 can stall multisig signing on older nodes as fix slips to next patch"},"content":{"rendered":"<p><\/p>\n<div data-cs-editorial-figure-scope=\"\" data-cs-editorial-quote-scope=\"\" data-cs-image-viewer-scope=\"\" data-single-article-content=\"\">\n<p>Bitcoin Core 32.0\u2019s 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.<\/p>\n<p>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.<\/p>\n<p>The mismatch concerns the Partially Signed Bitcoin Transaction, or PSBT, format used to exchange transaction data during signing. The new GUI creates PSBT v2. BIP 370 allows v2 to add inputs and outputs after creation when its modification flags permit, but deliberately makes it incompatible with software that only handles v0.<\/p>\n<div class=\"cs-article-embed\">\n<p> <span class=\"cs-article-embed__related-reading\">Related Reading<\/span><\/p>\n<h3 class=\"cs-article-embed__title\">Bitcoin Core\u2019s new fix closes gap that could redirect funds without stealing keys<\/h3>\n<\/p>\n<p> <span class=\"cs-article-embed__arrow\" aria-hidden=\"true\"> <i class=\"fa-light fa-arrow-up-right\"\/> <\/span> <\/div>\n<p>The report also describes v2 output being rejected by <code>joinpsbts<\/code>, an RPC that accepts only v0 files. External signing software may face similar trouble if it lacks v2 support.<\/p>\n<p>GitHub shows a verified, signed v32.0 final source tag dated Oct. 21. The official download page still advertised 31.1 when checked Oct. 22, so the tag alone should not be read as confirmation that 32.0 binaries are available.<\/p>\n<p>Maintainer fanquake moved the compatibility issue to 32.1 on Oct. 21, saying 32.0 was overdue and there was not yet a fix ready to backport. Pull request 36539 proposes restoring GUI-created PSBTs to v0 and remained open at the Oct. 22 check. CryptoSlate\u2019s September release-candidate coverage had flagged the RPC format-default changes; the GUI fix\u2019s deferral is the later development.<\/p>\n<aside id=\"cs-inline-newsletter-1\" class=\"cs-inline-newsletter cs-newsletter-brand\" data-newsletter-edition=\"catalyst\" data-inline-newsletter=\"\" data-newsletter-placement=\"article-midpoint\" aria-labelledby=\"cs-inline-newsletter-1-title\" aria-describedby=\"cs-inline-newsletter-1-copy\">\n<div class=\"cs-inline-newsletter__inner\">\n<div class=\"cs-inline-newsletter__content\">\n<div class=\"cs-inline-newsletter__editorial\">\n<p class=\"cs-inline-newsletter__eyebrow\">The Catalyst<\/p>\n<p class=\"cs-newsletter-frequency\">Daily Newsletter<\/p>\n<h2 id=\"cs-inline-newsletter-1-title\" class=\"cs-inline-newsletter__title\">Know what\u2019s moving crypto.<\/h2>\n<p id=\"cs-inline-newsletter-1-copy\" class=\"cs-inline-newsletter__copy\">Start with the stories that matter. Get the context behind the headlines and a clear view of what to watch next.<\/p>\n<\/div>\n<div class=\"cs-inline-newsletter__art\" aria-hidden=\"true\"> <img loading=\"lazy\" src=\"https:\/\/cryptoslate.com\/wp-content\/themes\/cryptoslate-2020\/images\/catalyst-newsletter-scrapbook-v3.webp\" alt=\"\" width=\"640\" height=\"640\" loading=\"lazy\" decoding=\"async\"\/><img loading=\"lazy\" class=\"lazyload\" src=\"https:\/\/cryptoslate.com\/wp-content\/themes\/cryptoslate-2020\/images\/catalyst-newsletter-scrapbook-v3.webp\" alt=\"\" width=\"640\" height=\"640\" loading=\"lazy\" decoding=\"async\"\/><\/div>\n<\/div>\n<\/div>\n<\/aside>\n<div class=\"cs-article-embed\">\n<p> <span class=\"cs-article-embed__related-reading\">Related Reading<\/span><\/p>\n<h3 class=\"cs-article-embed__title\">Major Bitcoin Core update changes default wallet protocols, risking temporary disruption across popular apps<\/h3>\n<\/p>\n<p> <span class=\"cs-article-embed__arrow\" aria-hidden=\"true\"> <i class=\"fa-light fa-arrow-up-right\"\/> <\/span> <\/div>\n<h2>How to avoid the PSBT format mismatch<\/h2>\n<p>Mixed-version co-signers can choose v0 when creating the file through Core 32\u2019s RPC interface, using <code>psbt_version=0<\/code> with <code>walletcreatefundedpsbt<\/code> or <code>createpsbt<\/code>. The v32.0 functional tests cover both format versions and check that the decoded output matches the requested version.<\/p>\n<p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter shoggoth-infographic shoggoth-infographic-portrait wp-image-575265\" src=\"https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf.png\" alt=\"Two PSBT creation paths: Core 32 GUI creates v2 files rejected by pre-32 Core co-signers; RPC psbt_version=0 creates v0 to avoid that format mismatch. Notes show joinpsbts accepts v0 only, external software needs v2 support for v2 files, and PR 36539 remains open with a 32.1 milestone.\" width=\"720\" height=\"900\" srcset=\"https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf.png 1122w, https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf-240x300.png 240w, https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf-819x1024.png 819w, https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf-768x960.png 768w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\"\/><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"lazyload aligncenter shoggoth-infographic shoggoth-infographic-portrait wp-image-575265\" src=\"https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf.png\" alt=\"Two PSBT creation paths: Core 32 GUI creates v2 files rejected by pre-32 Core co-signers; RPC psbt_version=0 creates v0 to avoid that format mismatch. Notes show joinpsbts accepts v0 only, external software needs v2 support for v2 files, and PR 36539 remains open with a 32.1 milestone.\" width=\"720\" height=\"900\" srcset=\"https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf.png 1122w, https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf-240x300.png 240w, https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf-819x1024.png 819w, https:\/\/cryptoslate.com\/wp-content\/uploads\/2026\/10\/exec-7eea57ec-0560-44c7-8c1e-c1eb6e222abf-768x960.png 768w\" data-sizes=\"(max-width: 720px) 100vw, 720px\"\/><\/p>\n<div class=\"cs-article-embed\">\n<p> <span class=\"cs-article-embed__related-reading\">Related Reading<\/span><\/p>\n<h3 class=\"cs-article-embed__title\">Popular Bitcoin wallets risk losing support for new hardware devices as critical security bridge stops accepting new devices<\/h3>\n<\/p>\n<p> <span class=\"cs-article-embed__arrow\" aria-hidden=\"true\"> <i class=\"fa-light fa-arrow-up-right\"\/> <\/span> <\/div>\n<p>BIP 370 also permits converting an existing v2 PSBT to v0 by reconstructing its unsigned transaction, but does not itself provide an operator command.<\/p>\n<\/div>\n<p>Featured,Technology,Wallets,Bitcoin,BTCBitcoin,BTC#Bitcoin #Core #stall #multisig #signing #older #nodes #fix #slips #patch1792693490<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bitcoin Core 32.0\u2019s 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<\/p>\n","protected":false},"author":1,"featured_media":14809,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[91,285,1362,1053,7155,2900,7538,6427,4468,2642,888],"class_list":["post-14808","post","type-post","status-publish","format-standard","has-post-thumbnail","category-ethereum","tag-bitcoin","tag-btc","tag-core","tag-fix","tag-multisig","tag-nodes","tag-older","tag-patch","tag-signing","tag-slips","tag-stall"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bitcoin Core 32 can stall multisig signing on older nodes as fix slips to next patch - Crypto News: Latest Cryptocurrency News and Analysis<\/title>\n<meta name=\"description\" content=\"Bitcoin Core 32\u2019s GUI-created PSBT v2 files can block older co-signers. 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