Google is rolling out Chrome 64 for all platforms, which comes with a very useful new feature. You can now mute entire websites that autoplay video so you never have to fumble with the audio controls the next time you open the site. Just right click on the tab and and select 'Mute site' to permanently mute it.
Another change is that Chrome is now also better protected against Meltdown and Spectre attacks. The browser has disabled the SharedArrayBuffer feature to prevent further attacks.
Lastly, the Windows version also gets HDR support. If you have a Windows 10 PC running the latest Fall Creators Update, HDR-compatible hardware and HDR display, then you should be able to play HDR content in the browser, assuming you find any.