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Release Notes for v18.0.0-alpha.1

Note: This is an alpha release. Please file new issues for any bugs you find in it.

This release is published to npm under the alpha tag and can be installed via npm install electron@alpha, or npm install electron@18.0.0-alpha.1.

Features

  • Added 'focus' and 'blur' events to WebContents. #25873
  • Added Substitutions menu roles on macOS: showSubstitutions, toggleSmartQuotes, toggleSmartDashes, toggleTextReplacement. #32024
  • Added first-instance-ack event to the app.requestSingleInstanceLock() flow, so that users can pass some data back from the second instance to the first instance. #31460
  • Added height option for Windows Control Overlay. #31222
  • Added rawHeaders to IncomingMessage. #31853
  • Removed the old BrowserWindowProxy-based implementation of window.open. This also removes the nativeWindowOpen option from webPreferences. #29405
  • Support obsolete blowfish ciphers bf-{cbc,cfb,ecb} through the Node.js crypto API. #32356 (Also in 17)

Fixes

  • Allowed specifying x64 arch on Mac Rosetta via npm_config_arch. #32266 (Also in 15, 16, 17)
  • Assertion failure happening in the showSaveDialogSync() code path has been fixed. (Fixes #31997). #32049 (Also in 14, 15, 16, 17)
  • Bug fixed for registering protocol in windows which used to set invalid command if the execution path included space. #32220 (Also in 14, 15, 16, 17)
  • Fixed VoiceOver not reading typed words correctly in MAS builds. #32543 (Also in 17)
  • Fixed maxWidth not working in BrowserWindow constructor options. #32628 (Also in 17)
  • Fixed window.open not overriding parent's webPreferences. #32057 (Also in 15, 16, 17)
  • Fixed a crash caused by app.getLocaleCountryCode(). #32256 (Also in 15, 16, 17)
  • Fixed a crash that occurred when a user attempted to print a document either with window.print(), the print button in the PDF viewer, or with BrowserWindow.webContents() and clicked cancel in the resulting print dialog. #32632
  • Fixed a crash that occurred when user attempted to download an edited PDF. #32512 (Also in 15, 16, 17)
  • Fixed a crash when starting VoiceOver on macOS. #32564 (Also in 17)
  • Fixed a potential crash in v8 by using allocation type: kOld in v8 ScriptOrModule legacy lifetime. #32339 (Also in 17)
  • Fixed a potential crash when importing media files or custom file types. #31881 (Also in 16, 17)
  • Fixed a potential issue when setting backgroundColor on BrowserViews. #31863 (Also in 14, 15, 16, 17)
  • Fixed an issue that the alert() dialog title is corrupted. #32434 (Also in 14, 15, 16, 17)
  • Fixed an issue where ipcRenderer.postMessage would throw errors when the transfer argument was not passed. #32433 (Also in 14, 15, 16, 17)
  • Fixed an issue where calling screen capture on macOS does not properly release underlying OS capture mechanisms. #32435 (Also in 17)
  • Fixed an issue where frameless vibrant windows would not show transparency correctly on macOS. #32593 (Also in 16, 17)
  • Fixed an issue where if backgroundColor was set to undefined, vibrancy failed to work and the backgroundColor would show up as white. #32517 (Also in 16, 17)
  • Fixed an issue where the 'maximize' and 'unmaximize' events didn't fire properly on linux. #32441 (Also in 14, 15, 16, 17)
  • Fixed an issue with transparent windows failing to fire the maximize and unmaximize events on Windows. #32643 (Also in 15, 16, 17)
  • Fixed aspect ratio resize for frameless windows on macOS. #32287 (Also in 15, 16, 17)
  • Fixed console windows from ELECTRON_RUN_AS_NODE instances. #31963 (Also in 16, 17)
  • Fixed crash when calling webContents.setZoomFactor(1.0). #32604 (Also in 13, 14, 15, 16, 17)
  • Fixed crash when playing media files on Windows 7/8 or macOS 10.11/10.12. #32046 (Also in 13, 14, 15, 16, 17)
  • Fixed incorrect skipTransformProcessType option parsing in win.setVisibleOnAllWorkspaces(). #32364 (Also in 13, 14, 15, 16, 17)
  • Fixed issue where not all serial devices were exposed to the handler specified by session.setDevicePermissionHandler. #32651 (Also in 15, 16, 17)
  • Fixed minimized BrowserWindow being restored by BrowserWindow.unmaximize(). #32438 (Also in 14, 15, 16, 17)
  • Fixed potential crash on Windows and Linux when using desktopCapturer.getSources. #32052 (Also in 16, 17)
  • Fixed regression where console windows would open for execSync and some spawnSync calls for Windows users. #32340 (Also in 16, 17)
  • Fixed respecting aspect ratio when maximum size is set on BrowserWindow. #29101 (Also in 14, 15, 16, 17)
  • Fixed windows with roundedCorners: false unable to be closed. #32597 (Also in 15, 16, 17)
  • No Notes. #32178 (Also in 13, 14, 15, 16, 17)
  • No Notes. #32240 (Also in 13, 14, 15, 16, 17)
  • Strip symbols from crashpad_handler binary on Linux, reducing bundle size. #32540 (Also in 15, 16, 17)
  • The <webview> implementation was made more robust, it no longer breaks when will-attach-webview handler modifies the internal params.instanceId. #32386 (Also in 16, 17)

Other Changes

  • Updated Chromium to 99.0.4767.0. #31986
  • Updated Node.js to v16.13.2. #32418

Documentation

 v18.0.0-alpha.1 on GitHub
 2022-02-02 (819 days ago) 99.0.4767.0 16.13.2