Internet Explorer 9: what you need to know

IE9 Acid test
IE9 does better with the Acid 3 test; it doesn't pass but Microsoft suggests other standards are more widely used

Update: read our Hands on: IE9 review

Microsoft showed Internet Explorer 9 for the first time yesterday at its Professional Developer Conference, but a technical preview won't be available before next year (perhaps at CES 2010 in January).