Today, Google announced the release of a new version, 9.0.597.84, of its Chrome Web browser, for all platforms (Mac OS X, Linux, and Windows). The new version fixes nine security vulnerabilities (not all platforms are affected by all nine), and adds some additional function, including support for WebGL, which enables hardware graphics acceleration within the browser. Further details of the fixed vulnerabilities are in the update announcement. More information on the new features is given in a post on the Google Chrome Blog.
Because of the security content of this release, I recommend that you update your systems to the new version as soon as you conveniently can, You can use the built-in update mechanism (Help / About Google Chrome) on Windows machines; Linux users should be able to get the new version using standard package update tools (e.g., apt-get, synaptic). Alternatively, you can download installation packages here.