Microsoft released IE9 final version and made it available for download from beauty of the web site. IE9 setup file will download and install required updates online, if you’re wondering for an offline installer for IE9, you can download it from below.
IE9 Beta has been downloaded over 40 million users, if you’re using Beta or Release Candidate versions of the same, you’ll be upgraded to final version automatically. You can read Internet Explorer 9
product guide here and release notes here.
If you’re a 64-bit user, since 32-bit IE9 runs faster than 64-bit one on Windows 7, read installing 32bit version of IE9 on Version of Windows 7.
IE9 final offline installer download links