Changelog:

• Remove the view-painted event which was introduced in v1.3.1 and didn't work. #6705
• Add support for offscreen rendering. #6691, #6713, #6723, #6721, #6737, #6741
• Add win.setContentBounds(options[, animate]) and win.getContentBounds() APIs. #6654
• Add image.getBitmap() API. #6733
• Add zoomin, zoomout, resetzoom to MenuItem's roles. #6777
• Fix the remote devtools page not loading in Electron. #6707
• Fix cookies API not working for custom protocols. #6708
• Fix properties of DOM objects not being able to be sent via ipc module. #6776

macOS

• Add systemPreferences.isSwipeTrackingFromScrollEventsEnabled() API. #6686
• Add systemPreferences.postNotification(event, userInfo) and systemPreferences.postLocalNotification(event, userInfo) APIs. #6752
• Add more details to error message of autoUpdater. #6743
• Add startspeaking and stopspeaking to MenuItem's roles. #6765
• Fix resizable: false option disabling the fullscreen button. #6664
• Fix scroll-touch-begin and scroll-touch-end events being emitted when scrolling page. #6754

Windows

• Add return value for app.setUserTasks(tasks) API. #6766
• Add win.setThumbnailToolTip(toolTip) API. #6762
• Fix calling autoUpdate.checkForUpdates() for twice making quitAndInstall() throw errors. #6780
• Fix win.setThumbnailClip(region) API not recognizing high-DPI displays. #6782