Officially, IE10 on Windows 7 remains in Release Preview, a build that debuted Nov. 13, 2012. At the time, Computerworld speculated that a final release would occur before the end of 2012, basing its estimate on the development timetable for IE9. Instead, the browser will apparently launch in 2013. IE10's public feedback website (requires log-in using a Microsoft account) - contains a wide variety of bug reports, hinting that Microsoft still has work to do before shipping a final version.
Among them, a glitch that disables Windows 7's "Aero" interface graphical elements when IE10 runs. IE10 will not be released for Windows Vista, the 2007 problem-plagued operating system, nor, with its retirement looming next year, Windows XP. Microsoft was the first, and so far, only, browser maker to drop Vista, just as it was the first - and again, the only - developer to abandon Windows XP last year when it shipped IE9.