A round up of the deprecations and removals in Chrome 59 to help you plan.
Headless Chrome (shipping in Chrome 59) is a way to run the Chrome browser in a headless environment. It brings all modern web platform features provided by Chromium and the Blink rendering engine to the command line.
As of Chrome 59, notifications will be displayed native notifications on macOS.
Navigation preload lets you overcome service worker startup time by making requests in parallel.