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Sparrow

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Informational 17 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

remove the surplus signatures progress bar segments a finalized multisig transaction discards

This commit fixes a UI display bug in Sparrow Wallet's signature progress bar. When a multi-signature Bitcoin transaction becomes finalized, extra signatures beyond the required threshold are discarded. Previously, the progress bar did not…

UI state desynchronization after multisig finalizationProgress bar segment count mismatch with actual signature setNo change to cryptographic or transaction validation code
40f77206by Craig Raw+9−12 files
No security note in commit
Informational 15 AI analysisMessage 38 · Opaque
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

bump to v2.5.6

This commit is a routine version bump from 2.5.5 to 2.5.6. It only changes version strings in four files (build configuration, documentation, macOS app metadata, and a Java source constant). There are no code logic changes, no bug fixes, a…

f7f36d00by Craig Raw+4−44 files
No security note in commit
Informational 17 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

use a framerate-capped interpolated timeline for the server toggle and wallet tab loading pulse animations, and stop any running server toggle pulse before starting a new one

This commit tweaks two visual animations in the Sparrow Wallet desktop app: the server connection toggle pulse and the wallet loading pulse. It caps how often the screen is redrawn during the pulse and makes sure any already-running pulse …

Resource-consumption / performance hardening: capped animation framerate reduces CPU/GPU load from continuous 60 Hz redraws.State-management hardening: stopping an existing pulse before starting a new one prevents accumulation of running Timelines.No direct security flaw is present in the diff; signals are defensive-hardening in nature.
4da29f4eby Craig Raw+7−132 files
No security note in commit
Low 45 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

cut pasted amounts to the unit precision in the send tab and send to many, and stop the csv import skipping fractional sats and exponent amounts

This commit fixes how Sparrow Wallet handles pasted or imported Bitcoin amounts. Previously, very small or oddly formatted amounts (like scientific notation '1e-8' or fractional satoshis) could be misread or silently skipped during CSV imp…

Amount parsing inconsistency between UI paste and CSV importSilent swallowing of NumberFormatException could skip payment rowsUse of Double.parseDouble for monetary amounts
9e999d3fby Craig Raw+39−362 files
No security note in commit
Informational 15 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

add a system theme option that follows the os light or dark setting, and make it the default for new installs

This commit adds a new 'System' theme option to the Sparrow Wallet desktop app that automatically follows the operating system's light or dark mode setting, and makes it the default for new installations. It also updates various UI compone…

a573f22aby Craig Raw+90−3215 files
No security note in commit
Low 36 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

refuse bitbox02 keystore import and discovery for legacy p2sh and p2pkh wallets it cannot sign for, and hide those script types from the device import menus

This commit tightens how Sparrow Wallet handles BitBox02 hardware wallets when working with older Bitcoin address formats (legacy P2PKH and P2SH). Previously, the app could let a user import or discover a wallet that the BitBox02 cannot ac…

Prevents user from configuring a signing device for wallet types the device cannot sign forCould avoid funds becoming unspendable or requiring complex recovery if a user unknowingly imported an unsupported legacy script typeReplaces hard-coded device-specific logic with a generic capability model, reducing future similar issues
de169b18by Craig Raw+23−73 files
No security note in commit
Low 37 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

reject unknown command line options and values given to flags with an error and exit code instead of starting on the default network, and accept the --option=value form

This commit tightens how Sparrow Wallet handles command-line arguments. Previously, typos or unexpected values could silently be ignored, causing the wallet to start on the default Bitcoin network instead of the one the user intended. Now,…

Command-line argument parsing now rejects unknown options instead of silently ignoring themBoolean flags now reject `--flag=value` forms that would otherwise silently pass the value through as a file/URI argumentProgram now exits with non-zero status on argument errors, reducing risk of unintended default-network startup
46197586by Craig Raw+26−12 files
No security note in commit
Low 37 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

ignore amount digits beyond the selected unit precision in the send tab amount and fee fields and the send to many grid, instead of truncating them in the payment

This commit fixes a UI bug in the Sparrow Bitcoin wallet where typing or pasting too many decimal digits into amount or fee fields could be silently truncated, potentially causing a user to send a different amount than they saw on screen. …

Precision-loss / truncation bug in financial input fieldsUser-facing amount/fee mismatch between displayed value and parsed valueInput validation now tied to unit-specific precision (satoshis indivisible)
6cde97adby Craig Raw+48−315 files
No security note in commit
Low 41 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

derive public keys from the seed when importing a sparrow wallet file

This commit changes how Sparrow Wallet restores its own wallet files. Previously, when importing a Sparrow wallet file, the public keys (used to find transactions and addresses) might not be correctly rebuilt from the seed phrase. The fix …

Correctness fix for key material restoration during wallet importAdds test coverage for encrypted and unencrypted seed-based wallet importAdds test coverage for watch-only wallet import
1fb4e8bbby Craig Raw+149−23 files
No security note in commit
Informational 21 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

add file import of the xpub descriptor jade writes to usb storage

This commit adds the ability to import a Bitcoin wallet's extended public key (xpub) into Sparrow Wallet from a file written by a Blockstream Jade hardware wallet via USB storage. Previously, Jade only supported QR-code import. The change …

New file import path parses external descriptor data and converts it to a keystoreScript type mismatch is explicitly rejected with an IllegalArgumentExceptionSilent payments policy (SINGLE_SP) is explicitly rejected
c4b53879by Craig Raw+74−44 files
No security note in commit
Low 34 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

include the non-witness utxo in psbts for krux keystores, and in the qr display when the psbt has more than one input

This commit changes how Sparrow Wallet builds QR codes for partially-signed Bitcoin transactions (PSBTs). For certain hardware wallets (Krux), it now includes extra data (the full previous transaction, called 'non-witness utxo') in the QR …

Hardware wallet signing correctness: missing non-witness UTXO data can cause some signers to reject or mis-handle multi-input segwit PSBTsQR payload size increase: larger QR codes may be harder to scan reliably, potentially affecting usabilitySubproject update (drongo) likely contains related serialization logic changes
0e2c402fby Craig Raw+4−32 files
No security note in commit
Low 35 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

clear a scanned wallet when a file, text payload or unrecognised qr is imported in the same pane

This commit fixes a UI state bug in Sparrow Wallet's import pane. Previously, when a user scanned or imported a wallet and then imported a non-wallet file, text payload, or unrecognized QR code in the same pane, the previously loaded walle…

Stale UI state could mislead users about which wallet is loadedCross-import state retention in single import paneUser interface consistency fix with security-relevant consequences
d7ded1e7by Craig Raw+4−21 file
No security note in commit
Low 35 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

lock the cormorant store against client connection reads and serve history as a copy, and close the client socket however its handler exits

This commit fixes two reliability issues in Sparrow Wallet's built-in Electrum server (Cormorant). First, it makes sure the internal transaction store is locked while being read or updated, and returns a fresh copy of a wallet's history so…

Concurrency: shared mutable store accessed by client handler and polling threads now synchronizedData consistency: history returned as a defensive copy to avoid iterator seeing concurrent modificationsResource leak: client socket now closed in finally block regardless of exception path
6cc4d50aby Craig Raw+57−94 files
No security note in commit
Low 44 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

ensure cormorant responses and notifications are always serialized per client connection

This commit fixes a race condition in Sparrow Wallet's built-in Electrum server (Cormorant). Previously, a response to a wallet client and an asynchronous notification (like a new block or a balance update) could be written to the same net…

Race condition on shared socket output streamConcurrent writes from RPC response path and event-bus notification pathPotential interleaving/framing of JSON-RPC messages on same TCP connection
6d9d3014by Craig Raw+146−303 files
No security note in commit
Low 27 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

wake a silent payments history waiter when a failed widening restores a completed scan, rather than leaving it parked for the session

This commit fixes a bug in Sparrow Wallet's silent-payments scanning cache. If a background scan had already finished, then a later 'widening' request to extend the scan failed and rolled back, any history request that arrived during the f…

Concurrency / condition-variable waiter starvationSilent-payments history lookup hang / wallet UI unresponsivenessFailure-recovery path missing signal on rollback
7868a94dby Craig Raw+100−122 files
No security note in commit
Informational 18 AI analysisMessage 60 · Adequate
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

guard a short server.version response in the desktop and terminal connection tests

This commit fixes a minor crash bug in Sparrow Wallet's connection-test screens. Previously, if a Bitcoin Electrum server answered the version request with an unusually short response, the wallet would try to read list items that didn't ex…

Input validation hardening for external server responseIndexOutOfBoundsException prevented in UI feedback pathNo cryptographic, authentication, or transaction logic touched
66348fafby Craig Raw+4−42 files
No security note in commit
Low 37 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

omit a paynym contact whose payment code does not parse rather than keeping it with a null code or failing the whole paynym response

This commit fixes a bug in Sparrow Wallet's PayNym (BIP47 reusable payment code) contact handling. Previously, if a single contact in your PayNym following/followers list had a malformed payment code, the app either kept a broken contact w…

Null payment code previously stored in contact objectPotential NullPointerException or downstream dereference of null PaymentCode in contact lists/searchWhole PayNym response could fail on one malformed contact
94ebb849by Craig Raw+43−114 files
No security note in commit
Informational 19 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

skip the exchange currencies request in offline mode in the desktop and terminal general settings

This change stops Sparrow Wallet from trying to fetch live fiat-currency exchange rates when the user has explicitly chosen 'offline mode'. Instead of making a network request that is doomed to fail, it now reuses the currency already save…

Avoids unnecessary network egress in offline modeReduces error/warning noise for expected offline behavior
b91f7993by Craig Raw+15−12 files
No security note in commit
Low 37 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

skip addresses already given out under a label and widen the gap limit on an explicit advance in the terminal receive dialog

This commit fixes two related Bitcoin wallet behaviors in Sparrow. First, when you ask for a new receive address, the wallet now skips any address that already has a label, because a label means that address was already given to someone. P…

Address reuse prevention: labeled-but-empty addresses are now skipped consistently across desktop and terminal receive flowsGap-limit widening on explicit advance reduces risk of missing funds during wallet recovery/rescanLogic centralized in WalletForm to reduce UI-specific divergence
cae870ceby Craig Raw+85−164 files
No security note in commit
Low 44 AI analysisMessage 50 · Thin
SW SparrowSparrow Wallet BitcoinHardware integrationSoftware wallets

cap bbqr display and pdf encodings at the 1295 parts the header can number, using larger parts for data that needs more rather than emitting a sequence that cannot be reassembled

This commit fixes a bug in Sparrow Wallet's BBQ QR code format. Previously, if a large transaction or data blob needed more than 1,295 QR-code-sized pieces, the app would generate pieces with impossible sequence numbers that could not be r…

Integer/sequence-number overflow-like limit violation in a data-encoding protocolPotential denial-of-service or data-integrity failure when exporting large transactions via QRRound-trip unit test added to prevent regression
4b5326d8by Craig Raw+27−12 files
No security note in commit