Updates are necessary for your Google chrome browser in order to ensure latest security updates. Also the latest extensions of Google chrome will not work with your older version browser. However chrome automatically updates itself. But some times this automatic update doesn’t work and you need to update the software manually. If you want to see which version is installed on your system, then click on the wrench icon on the right side upper corner and click. Select “About Google Chrome” option. The popup Box will show you the version and you can know if your browser is the latest one or not.