Internet Explorer 10 Platform Preview 4 Available

The last test version of Internet Explorer 10 shipped exclusively with the Windows 8 Developer Preview. The platform preview that shipped with the Windows 8 system was actually the third preview version that Microsoft released publicly (see Microsoft Pushes Out Second Internet Explorer 10 Preview for previous coverage). Microsoft today made available the fourth platform preview, which is again only compatible with the Windows 8 developer preview. This basically means that users can only install the newest version on systems running Windows 8.

The new version adds support for additional HTML5 technologies including File API improvements, Web Worker Thread Pooling and HTML5 video improvements. Internet Explorer 10 Platform Preview 4 offers support for new CSS3 and DOM technologies as well.

Users interested in the browser’s revision history can look at the history page here for a list of all modifications and changes to the web browser.

• Cross-Origin Resource Sharing (CORS) for safe use of XMLHttpRequest across domains.
• 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.

Internet Explorer 10 Platform Preview 4 scores 299 points and 6 bonus points on the HTML5 Test website.

That’s an increase of 68 points over the second platform preview released earlier this year. In comparison, Firefox 10 Aurora scores 314+9, Google Chrome 17 Dev 344+13 and Opera 11.60 325+9 points. Compare that to Internet Explorer’s 9 score of 141+5 and you will realize that Microsoft made a huge jump in HTML5 compatibility.

Take a look at the following video to see some of the browser’s HTML5 technologies in action.

The Internet Explorer blog post offers additional information for web developers who want to take a closer look at the technologies that are now supported by the browser.

Windows 8 users can download the latest Internet Explorer Preview from the official test drive site.

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Author: Martin Brinkmann, Wednesday November 30, 2011 -
Tags:internet-explorer, microsoft, platform preview, windows 8

Responses so far:

1. Midnight says:

   November 30, 2011 at 4:34 pm

   Still Not ready for Prime time and still uses ActiveX, so….

   No thanks!! I doubt if Microsoft will ever get that Browser right!!

   Of course, the fanboys will beg to differ, but it’s their choice! :)

   Reply
2. ódio says:

   November 30, 2011 at 5:10 pm

   Off Topic:

   Hey Martin, im here to show you a Firefox Add-On that I use and i like and im going to share with you.

   I used this one for a couple years, its a button for the toolbar that opens the Gmail page.
   https://addons.mozilla.org/pt-br/firefox/addon/open-gmail-with-toolbar-but/
   I dont know if you already see it, i like it cause if you save your password it’s One Click to get into your E-Mail.

   Very good, but yesterday I found a better one for me.
   https://addons.mozilla.org/pt-br/firefox/addon/pinned-gmail-button/
   This new one does exactly the same thing, but open the Gmail in a already pinned tab, very useful for me who always Pin the Gmail.

   with this i save 1 more click each day :]

   Reply
3. Swapnil says:

   November 30, 2011 at 5:22 pm

   Microsoft is too late still. Opera 11.60 as you say has 325 points. Opera 12.00 will definitely add this upto 340 points with 15 points of WebGL. But Opera 12 doesn’t end here – Presto 3.0 should be coming with more surprises like support for getUserMedia API (Device API) which is currently in Opera Labs. If Device API is included then finally the Chrome would have step down from the top HTML5 supporting browser rank.
   Google and Opera will then be overtaking each other turn by turn to be supreme HTML5 supporting browser – but Microsoft would be struggling to even keep up with any of them!!!

   Reply
4. Paul(us) says:

   December 1, 2011 at 1:39 am

   1.) Is it still possible to use Internet Explorer 10 in windows 7?
   2.) And do you think with the final version of Internet Explorer 10 I can install it with Windos 7?
   3.) And main last question is when I install Internet Explorer 10 (in windows 7), do you think Its better to uninstall Internet Explorer 9 first?

   Reply
   • Martin Brinkmann says:

     December 1, 2011 at 1:42 am

     1) You can still use the 2nd developer preview with Windows 7
     2) Yes, Internet Explorer 10 will be available for Windows 7 and Windows 8.
     3) I probably would wait what Microsoft recommends and do that.

     Reply
5. bazza says:

   December 1, 2011 at 9:21 am

   Does that mean there will be more IE articles here? Would be nice to know some new tool or add-ons for the browser.

   Cheers.

   Reply