Say what you will about Google, they do a great job of fixing security issues in their flagship browser software, Chrome.
As usual, Google says the new version “will roll out over the coming days/weeks”. Unless you’ve disabled all of Google’s automatic updating mechanisms, Chrome will update itself, but it’s difficult to predict exactly when that will happen. However, you can usually trigger an update by running Chrome, clicking its menu button (the three dot icon at the top right), and selecting
About Google Chrome.