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Developers get new IE10 for Windows 8 preview

More HTML5 features for future browser

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Microsoft has released a new developer preview of the tenth version of Internet Explorer, which is designed to run on only on Windows 8.

The build includes much greater HTML 5 support, including what Microsoft says is the best IE hardware-accelerated graphics yet and faster JavaScript handling, thanks to the browser supporting typed arrays for the software. Shifting data between applications and domains should also be improved with support for CORS (cross origin resource sharing) via XMLHttpRequest, and blobBuilder from File API: Writer is also included to make it easier to handle large chunks of binary code within the browser.

“We continue to contribute to the test suites under development at the HTML5 standards bodies, submitting 118 new tests to them, to further the goal of interoperability and same markup,” blogged Rob Mauceri, group program manager for IE. “You can view them at the IE Test Center as well. We strongly encourage all developers to write for HTML5 standards first by always using the HTML5 doc type <!DOCTYPE html> in your pages.”

Other improvements include the addition of video text captioning, including time-code, placement, and captioning formats using HTML 5. Backward-compatibility issues should also be eased by an improved quirks mode that works better with other browsers.

The browser has the option of using the touch-focused Metro interface or the more traditional look and feel. No date has been given for the release of either the browser or the operating system designed to run it. ®

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