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RT @COLDCARDwallet
COLDCARD Firmware 4.1.2🍄⏫

-QR for BIP-85; @opennoms idea. 12/18/24 words, XPRV, private key & even hex
-QR in other places; XPUB, Seed, TXID, backup pw
-Smaller signatures. @craigraw for detecting this
-Seed XOR feature bugfix
-Red light bugfix
-coldcardwallet.com/docs/upgrad

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