Microsoft has advanced even further toward the same markup goal, improving the overall interoperability of IE9.
First off, the web standards support evolution provided through the two Platform Previews released after the Beta development milestone is not a part of IE9 RC.
In addition, there are also new elements of HTML5 which have been embraced with the advent of Build 9.0.8080.16413.
The IE Team has been pushing web developers to adopt what it calls site-ready HTML 5, namely the parts of the standard that can already be used on web projects for the public, including geolocation.
IE9 RC allows web applications to access the geographical location of the computer on which the browser is running on. This of course is done per the Geolocation API specification, allowing websites to offer web experiences tailored to users in specific locations around the world.
“CSS2D Transforms - Internet Explorer 9 RC adds support for the CSS3 2D Transforms module, which enables elements that are rendered by CSS to be transformed in two dimensional space.
HTML5 Semantic Tag - Internet Explorer 9 RC improves support for several HTML5 semantic tags where a semantic element is defined as one whose tag name describes its content, but which does not have any special behaviors. Elements now inherit from HTMLElement and by default the elements are now styled as specified in the HTML5 specification,” are additional examples of enhanced interoperability in IE9 RC.
Moreover, users can also leverage IE9 RC in order to watch video content on the web even though the content it’s coded with VP8.
All that IE9 RC requires in this scenario is that VP8 coded be installed on Windows. But this is valid only for WebM videos, IE9 supports playback of H.264-encoded video using the HTML5 video tag natively.
Make sure to watch the video embedded below in order to get an idea of what web developers that already got to test IE9 RC have to say about the browser release.