If you are using the Chrome Browser on your Windows, Mac or Linux PC, there is a new and important update out for you. The update addresses five critical security issues that have been fixed and all users are encouraged to update to the latest version. The build you are looking for is 49.0.2623.108 and you can see what version you have and get the update downloaded to your device by going to chrome://help in the browser and it will automatically start downloading the update for you. Once it is downloaded, you will need to restart the browser for the changes to take effect (but not reboot your computer).
As for what is addressed, the Chromium team as they usually do has kept it under wraps until a majority of users have updated to the new build. That said, they have released the externally sourced bugs and the bounties paid on those bugs to hackers/developers who found them.
[$7500] High CVE-2016-1646: Out-of-bounds read in V8. Credit to Wen Xu from Tencent KeenLab.