The latest version of Chrome includes fixes for forty-two security vulnerabilities. It’s also the first version that will display Not Secure in the address bar for all non-encrypted web pages. When that indicator appears, traffic to and from the viewed page is not being encrypted.
Viewing a non-encrypted web page is not particularly risky, as long as no private information is being transmitted. That means user names, passwords, email addresses, credit card numbers, and so on. However, as discussed here previously, unencrypted sites open up a world of possibilities for intercepting and modifying web traffic.
The release announcement for Chrome 68.0.3440.75 provides additional details regarding the security issues addressed.
The simplest way to update Chrome is also the best way to determine which version you’re running: click the three-vertical-dots icon at the top right, then select
About Google Chrome. If your browser isn’t already up to date, this will usually trigger an update.