Test Drive Internet Explorer 10 Fourth Internet Explorer 10

Microsoft has released a new test build of Internet Explorer 10 for the Windows Developer Preview. "This IE10 preview adds even more support for HTML5 technologies, enabling richer Web applications with significantly improved performance," revealed Rob Mauceri, Group Program Manager of IE team. "IE10's hardware acceleration of technologies like SVG, CSS3 transforms and animations delivers […]

Internet Explorer 10Microsoft has released a new test build of Internet Explorer 10 for the Windows Developer Preview. "This IE10 preview adds even more support for HTML5 technologies, enabling richer Web applications with significantly improved performance," revealed Rob Mauceri, Group Program Manager of IE team.

"IE10's hardware acceleration of technologies like SVG, CSS3 transforms and animations delivers faster rendering than other browsers," the Mauceri stated.

IE10 PP4 "adds even more support for HTML5 technologies, enabling richer Web applications with significantly improved performance," according to Mauceri. Among the HTML5-related additions:

  • File API Writer support for blobBuilder allowing manipulation of large binary objects in script in the browser.
  • Support for JavaScript typed arrays for efficient storage and manipulation of typed data.
  • CSS user-select property to control how end-users select elements in a Web page or application.
  • Support for HTML5 video text captioning, including time-code, placement, and captioning file formats.
  • Support for CORS (cross origin resource sharing), which allows developers to use XMLHttpRequest to request, share and move data across applications on different domains.
  • IE10 PP4 also introduces an updated quirks mode "that is more consistent and interoperable with the way quirks modes works in other browsers like Firefox, Chrome, Safari, and Opera," according to today's post.

    IE10 PP4: CORS

  • "The features in this platform preview are available to Web pages now, and will be available to Metro style applications in Windows 8," said Mauceri.

    IE10 is expected to be available for Windows 7 and to be integrated with Windows 8. Microsoft is believed to be aiming to release IE10 shortly before or at the same time it releases to manufacturing Windows 8, which Microsoft watchers believe will be around mid-2012.

You can watch some of the new HTML5 capabilities, performance improvements in IE10 in the video below:

You can find a full list of new functionality available to developers in the IE10 developer guide here.

Download the Windows 8 developer preview to try this update to IE10.