Microsoft has released a new test build of Internet Explorer 10
version 2.10.8103.0. This version (The Platform Preview 4 (PP4) release ) only works on Windows 8.
This is not an update to the Platform Preview of IE 10 on Windows 7 but this release is for IE 10 on the Developer Preview pre-beta build of Windows 8 only.IE 10 PP4
is said to add even more support for HTML5 technologies, enabling richer Web applications.
Some of the additions:
■ Addition of the 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.
You can download the IE 10 Platform Preview (PP4) here