Google today released version 21 of its Chrome browser in the stable channel for all platforms. The new version number is 21.0.1180.57 for Mac OS X and Linux, and 21.0.1180.60 for Windows and Chrome Frame. The new version fixes 15 identified security vulnerabilities, one of which is rated as Critical severity; six are rated High severity. It also includes new APIs for high quality audio and video communication, allowing authorized applications to access the computer’s microphone and camera without a plugin. Further details are available in the Release Announcement; the new API capabilities are described further in a post on the Official Chrome Blog.
Because of its security content, I recommend that you update your systems as soon as you conveniently can. Windows and Mac users should get the new version via the built-in update mechanism. Linux users should get the updated package from their distributions’ repositories, using their standard package maintenance tools.
You can check the version of Chrome that you have by clicking on the tool menu icon (the little wrench), and then selecting “About Google Chrome”.