Version 9 of Microsoft's web browser. For more general cases, use the tag without a version specific number.

Microsoft's web browser, Internet Explorer 9, was released in March 2011.

It was released in March 2011, and supports Windows Vista SP2, Windows 7, Windows Server 2008 SP2 (with Platform Update) and Windows Server 2008 R2.

This version of Internet Explorer adds a number of UI changes, a faster JavaScript engine, improvements to CSS support, and support for some HTML5 features. The Compatibility Mode introduced in Internet Explorer 8 (which allows the Internet Explorer 7 standards mode to be emulated) is maintained in Internet Explorer 9.

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