Fixed Windows Mica/Acrylic background material effects on frameless windows.The enable_run_as_node build flag has been removed in favor of the runAsNode fuse.The enable_picture_in_picture build flag has been removed.The enable_osr build flag has been removed.The app.runningUnderRosettaTranslation property has been deprecated.node: prefixed requires are now supported in sandboxed renderer preloads for events, timers and url.Support Chrome Extensions minimum_chrome_version manifest key.Exposed an API to allow apps to determine whether to avoid using semitransparent backgrounds.Detect system dark theme preference via xdg settings portal on Linux.BrowserWindow.getBrowserView() started to guarantee returning z-index sorted array.Added transparent color support for WCO on Windows.Added the ability to send HTTP headers with webContents.downloadURL().Added the ability to send HTTP headers with session.downloadURL().Added support for several more extensions manifest keys including host_permissions, author, and short_name.Added support for several more Node.js cli flags in the main process.Added support for flagging a Menu as being keyboard initiated.Added support for customization of the default math font along with other fonts.Added support for chrome.scripting extension APIs.Added support for -dns-result-order Node.js cli flag.

Added a title parameter to webContents.openDevTools()to specify the DevTools window title.

Added a tabbingIdentifier property to BrowserWindow.

Added senderIsMainFrame to messages sent via ndTo().

Added tUsePlainTextEncryption and safeStorage.getSelectedStorageBackend api.

The deprecated color scheme changed events in systemPreferences have been removed.

The deprecated webContents.getPrinters() API has been removed.

The webContents.getPrinters API has been deprecated.

The systemPreferences.getAppLevelAppearance, tAppLevelAppearance and systemPreferences.appLevelAppearance APIs have been removed, as well as the alternate-selected-control-text value for systemPreferences.getColor.

The systemPreferences.getAppLevelAppearance and tAppLevelAppearance APIs have been deprecated, as well as the alternate-selected-control-text value for systemPreferences.getColor.

The senderId and senderIsMainFrame properties of IpcRendererEvent have been deprecated.

The ndTo() API has been deprecated in favor of sharing a MessageChannel between two renderers.

macOS 10.13 and 10.14 support has been removed 38891.

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