Google chrome released chrome3.0 on the eve of its First birth day. This new version will work 25 % faster than the previous versions because they imroved 150% of Java script performance. The version was released with new tab features- tabs with new look. More search options when your typing address in the address bar, the main important thing is chrome is capble of viewing html5 tags such as video and image tags, and we can change the theme of the browser. According to official Chrome blog- the chrome users will be prompt to upgrade to latest verion. other wise you can download the latest version at google.com/chrome. The official also said that they need user feedback to improove the browser more relaible and user friendly.
Source: Google Blog.