Google today released a new stable version of its Chrome browser, version 12·0·742·112, for all platforms (Linux, Mac OS X, Windows, and Chrome Frame). This release fixes seven security vulnerabilities, six of which are rated High severity. Its embedded Flash player has also been updated to version 10.3.181.34; this Flash update does not appear to be security-related. Further details are in the release announcement on the Chrome Releases blog.
Windows users should get the new version via the built-in automatic update mechanism; you can verify that your system has been updated by clicking on the tools menu (the little wrench), and then on “About Google Chrome”. Linux users can get the updated package using their distros’ usual update tools.
Because of its security content, I recommend getting the new version as soon as you conveniently can.