Internet Explorer 11 Preview Updated
Written by Kay Ewbank   
Friday, 20 September 2013

Microsoft has released an update for the Developer Preview version of Internet Explorer 11 with better web standards support and web console improvements.

The new release is aimed at “a broader audience of tech enthusiasts and consumers to download and experience IE11 for Windows 7” according to a post on the Windows blog. The new release is the final preview release before general availability of IE11 for Windows 7 later this fall. IE11 for Windows 8.1 will coincide with Windows 8.1 GA on October 18.

In addition to the generally available preview, Microsoft is releasing virtual images of the IE11 Release Preview for Windows 7 on modern.IE, its recently launched developer site, along with updates to the F12 developer tools.

 

modernie

 

As the preliminary documentation explains, the F12 tools, which were rebuilt “from the ground up” in IE11 Preview, let you debug, test, and speed up your webpages. There’s a new UI Responsiveness tool that profiles your pages as they run, identifying where they slow down and which processes are taking too much time, and the Console and DOM Explorer tools now provide autocompletion suggestions while you're typing JavaScript, HTML, or CSS code.

 

 

ie11uiresp400

UI Responsiveness tool - click to enlarge

 

The Release Preview of IE 11 has support for more languages than the Developer Preview. It is also, according to the IE blog, nine percent faster than IE10, which is a five percent improvement from the IE11 Developer Preview, and over 30 percent faster than the nearest competitive browser.

The improved web standards support starts with support for an un-prefixed version of Pointer Events, which is now a Candidate Recommendation at the W3C. Pointer Events allows web sites to accept inputs from different sources such as a touchscreen and pen, and Microsoft has been pushing the idea hard enough to provide a prototype patch to Firefox to ensure cross-browser support for the idea.

The IE11 Release Preview also adds new user controls for the Standard Delivery Profile for Closed Captioning so users can customize how captions appear in the browser.

The improvements to the Web Console mean that WebGL contents can be debugged more easily as WebGL errors are now mapped to the JavaScript location. You can also now debug multi-threaded web sites with full console access while targeting web workers. Other changes include the ability to edit CSS properties directly in the Dom Explorer, and a way to identify memory changes between snapshots. This should make it easier to narrow down the source of memory leaks, as the F12 tool now identifies what operations were performed on allocated data between the memory snapshots.

More Information

Download IE 11 Release Preview

Internet Explorer 11 Release Preview Now Available for Windows 7 Customers

modern.IE

Related Articles

IE 11 Developer Preview For Windows 7

It Is Official - IE 11 To Support WebGL

 

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