Bug Fixes

• Fixed a crash loading URLs coming from
  RenderFrameHostImpl::SetNavigationHandle. #9674
• Fixed an issue where the window.history.pushState() API did not behave
  correctly on certain pages. #9468
• Fixed an issue where document.hidden, document.visibilityState, and the
  visibilitychange event did not behave correctly. Also windows now report as
  hidden when they are occluded on macOS. #9178

API Changes

• Added support for <datalist> elements on Windows and Linux. #9535
• Added support for creating/showing Notification objects from the main
  process. #9269
• Added a app.getGPUFeatureStatus() API that returns the information
  displayed in the chrome://gpu page. #9623
• Added support for specifying a powerPreference when creating a wegbl-based
  <canvas> context. #9704

macOS

• Added a screen.getMenuBarHeight() API. #9572
• Added an experimental customButtonsOnHover setting to the BrowserWindow
titleBarStyle option that draws custom close, minimize, and full screen
  buttons on hover. #8958