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At the MIX10 conference, Microsoft released the developer preview of Internet Explorer 9. This isn’t a full web browser like IE8 is - just a taste of what’s to come in IE9. Developers who have the preview browser installed, though, will receive updates bringing new code every 2 months until the beta release of IE9.

As previously announced, the new browser will support HTML5, CSS3, and hardware acceleration. It also sports a new JavaScript engine called “Chakra.” You can read more about its improvements and how to send feedback over on the IE blog here.

When you first launch the IE9 preview browser, you’re taken to the IE9 Test Drive website where you’ll find a series of tests ready to be run. There are speed demos for testing browser performance, graphics demos, and HTML5 demos for testing border radius, CSS2, DOM Style, and DOM events. There’s also an “HTML 5 T-Shirt Designer” app that uses HTML5 and XHTML to let you create your own shirt.

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