The latest Chrome browser release is version 72.0.3626.121, and it fixes a security vulnerability for which exploits have been observed ‘in the wild’. So this is an important update.
When I try to look at the full change log using the link provided by Google, I get a blank page. Not sure what’s going on there.
If you use Chrome, it’s almost certainly updating itself on Google’s somewhat mysterious schedule. But you can check your version and initiate an update by navigating its ‘three dot’ menu to
About Google Chrome.