Microsoft has released a new test build of Internet Explorer 10. 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:

  • Support for JavaScript typed arrays for efficient storage and manipulation of typed data.
  • 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.

About the Author

Onuora Amobi is the Founder and VP of Digital Marketing at Learn About The Web Inc. Onuora has more than a decade of information security, project management and management consulting experience. He has specialized in the management and deployment of large scale ERP client/server systems.

In addition to being a former Microsoft MVP and the founder and editor of, he is the CEO of a Pasadena based online marketing education startup - Learn About The Web Inc. ( and The Redmond Cloud (

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