- Added validation to protocol client methods to enforce RFC 3986 URI scheme grammar and reject invalid characters in custom protocol or webRequest headers.
- Fixed platform‑specific crashes and UI glitches, including macOS autoUpdater quitAndInstall failures, Wayland screen cursor crashes, missing Chrome DevTools menus, traffic‑light button flashing, and Windows message‑box freeze.
- Corrected data handling bugs such as truncated additionalData in requestSingleInstanceLock, wrong origins for permission/device chooser handlers, and redundant favicon update events.
electron v40.8.1
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Fixed numerous crashes and stability issues (DevTools popup, promptTouchID, malformed ASAR, login item settings, sharedTexture GPU, main process exit, etc.).
Fixed Linux frameless window drop‑shadow glitch and a memory leak when creating BrowserWindows.
Fixed registerFileProtocol and registerHttpProtocol to return opaque responses for cross-origin no‑CORS fetches.