Microsoft has released Final Version of Internet Explorer 9 (IE9) for public and is available for a download. Internet Explorer 9 RC was released last month.
Internet Explorer 9 only supports Windows Vista and Seven.
Features of Internet Explorer 9:
Internet Explorer 9 is faster than its previous version,gives better browsing experience,offers on-the-fly search which means that while you type words in the search bar you will be able to see the relevant list of Web results, bookmarks, and browsing history and you can pin web apps on the Windows 7 taskbar by dragging a tab on the desktop of windows 7.