According to Google Chrome Help Center, Chrome automatically updates to a newer version when one is released which happens silently whether or not you’re using the browser at the time.

But for some reason, this isn’t working for me and I had to manually check Google Chrome for the latest version. If you are also having this issue and want to see if a manual update is available, follow these steps:

How To Update Google Chrome to Latest Version

1. Click the Tools menu
2. Select About Google Chrome.
3. At the bottom of the window, it will check for updates. If a newer version would be available, you will see an Update button. Click the button and restart the browser to use the latest version.

You can also check your Chrome version number from this window.