There are at least fifty-eight security fixes in the latest Chrome browser, version 72.0.3626.81. Released on January 29, the new version contains more than fourteen thousand changes in all. If you have a few days to kill, you can read the full change log.
Chrome will generally update itself whether you want it to or not, but if you’re not sure, navigate its menu (three dot icon) to
About Google Chrome to see which version you have installed, and trigger an update if one is available.
I’m not sure why Google didn’t see fit to mention any of the changes in this version on the announcement page, but it’s hard to imagine that none of them were at all interesting. Besides listing about thirty of the security fixes, all they’ve done is point to the Chrome blog, which currently doesn’t show any posts related to this new version.