Available to download now from Microsoft's IE Test Drive site, the new release is focused on delivering real-world performance improvements across sites on the web, the firm said.
Microsoft claimed that there have been over 13 million downloads of the Internet Explorer 9 beta since it was made available in mid-September.
The company has consistently declined to indicate even an approximate date for final availability of the new browser, but this is widely expected before the end of 2010, or to coincide with the 2011 Consumer Electronics Show in early January.
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