Microsoft yesterday released the latest preview of Internet Explorer 9, featuring dramatic performance gains in its Chakra JavaScript engine.

 

Since first demonstrated at PDC in 2009, Chakra in Internet Explorer has increased JavaScript performance by 345 percent according to WebKit SunSpider. The Exploring IE blog has much on the JavaScript engine and the performance gains, and includes a test drive demo.

 

Since the beta launch in September, Internet Explorer 9 beta has had more than 13 million downloads.

 

Download Internet Explorer 9

 

More to come,

Mitch

 

Subscribe to the TechNet Flash newsletter