RDN Express Blog

Blog archive

Microsoft Releases IE10 Preview 4 for Windows 8

On Tuesday, Microsoft released an updated preview of Internet Explorer 10 for Windows 8.

The Internet Explorer 10 Platform Preview 4 requires the Windows 8 Developer Preview, which was released in September in conjunction with IE10 Platform Preview 3.

The latest preview for Windows 7 was IE10 Platform Preview 2, available for download in June.

According to Microsoft, IE10 Platform Preview 4 adds cross origin resource sharing (CORS), which enables Web developers to use XMLHttpRequest for file and data sharing across domains. It also introduces support for File API: Writer (blobBuilder), improved Web Worker functionality and HTML5 video text captioning, among other enhancements.

Breaking changes in Build 4 include limited support for IE's Vector Markup Language. This preview removes VML from the IE Standards and Quirks mode. Microsoft recommends that developers use standards-based replacements such as Scalable Vector Graphics, supported in IE since IE9. Similarly, DirectX filters are no longer supported in the Standards and Quirks mode.

"IE10 Preview 4 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," explained Rob Mauceri, Microsoft group program manager for Internet Explorer, in an MSDN IE blog about the new features in preview 4. "This updated quirks mode supports quirks for page layout, while allowing use of more up-to-date standards features like HTML5 elements for audio, video, canvas, and more."

Microsoft also updated the Internet Explorer 10 Guide for Developers for Platform Preview 4. Get the IE 10 Platform Preview Build 4 download here.

Are these test drives helpful or is Windows 8 too far off for many developers? Express your thoughts on Windows 8, IE10 and Microsoft's JavaScript/HTML5 strategy. Drop me a line at krichards@1105media.com.

Posted by Kathleen Richards on 11/29/2011 at 12:54 PM

comments powered by Disqus

Reader Comments:

Add Your Comment:

Your Name:(optional)
Your Email:(optional)
Your Location:(optional)
Please type the letters/numbers you see above