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Fix Windows update sha512 checksum mismatch by disabling differential downloads #15

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Fix Windows update sha512 checksum mismatch by disabling differential downloads #15

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ae1556b
Initial plan
Copilot Nov 15, 2025
c9ac6a3
Fix Windows update differential download issue
Copilot Nov 15, 2025
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13 changes: 10 additions & 3 deletions electron/updater.cjs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,11 +14,16 @@ autoUpdater.logger.transports.file.level = 'info';
autoUpdater.autoDownload = false;
autoUpdater.autoInstallOnAppQuit = false; // Set to false to avoid conflict with manual quitAndInstall()

// Disable differential downloads on Windows to avoid checksum mismatch errors
// This forces full downloads which are more reliable
// Platform-specific update configuration
if (process.platform === 'win32') {
log.info('Disabling differential downloads on Windows');
// Windows: Force full downloads to avoid checksum mismatch errors
// Differential downloads on Windows are known to be unreliable
log.info('[Windows] Disabling differential downloads and web installers - forcing full downloads');
autoUpdater.disableDifferentialDownload = true;
autoUpdater.disableWebInstaller = true;
} else {
// macOS and Linux can use differential downloads safely
log.info(`[${process.platform}] Using default update configuration`);
}

// Track update state
Expand All @@ -41,6 +46,7 @@ function initAutoUpdater(mainWindow) {
// Update available
autoUpdater.on('update-available', (info) => {
log.info('Update available:', info);
log.info(`Platform: ${process.platform}, Differential downloads: ${!autoUpdater.disableDifferentialDownload}, Web installers: ${!autoUpdater.disableWebInstaller}`);

// Get current version from package.json
const { version: currentVersion } = require('../package.json');
Expand Down Expand Up @@ -112,6 +118,7 @@ function initAutoUpdater(mainWindow) {

// Download update
function downloadUpdate() {
log.info(`[${process.platform}] Starting update download - Differential: ${!autoUpdater.disableDifferentialDownload}, WebInstaller: ${!autoUpdater.disableWebInstaller}`);
return autoUpdater.downloadUpdate();
}

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