Opera 11 has been released. "Tab stacking is a better way to organize your open tabs. Simply drag one tab on top of another to create a stack. Extensions help you personalize your browser and enhance what Opera can do. With the flick of your wrist, mouse gestures let you navigate back and forwards, open new pages, close tabs and so much more. In Opera 11, you now have a handy visual guide to the wonders of mouse gestures. We changed the address bar, so you can make better sense of the security levels of the sites you visit. Opera 11 now displays a clear badge indicating the security level and allowing immediate, one-click access to security and trust information about the site."