Internet Explorer 9 has been pushed first to version 9.0.1 a couple of months ago, and now to v9.0.2 by two update packages released by Microsoft.
IE 9.0.2 is currently available through Windows Update as the August 2011 Cumulative Security Update for Internet Explorer, and IE 9.0.1 was also served automatically to users through WU as the June 2011 Cumulative Security Update for Internet Explorer.