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Microsoft Edge
Developer(s)Microsoft
Preview release
Windows 10
38.14393.0.0(July 18, 2016; 8 years ago (2016-07-18))

Windows Server 2016
25.10586.0.0 (November 19, 2015; 8 years ago (2015-11-19))
Windows 10 Mobile
38.14393.0.0 (July 18, 2016; 8 years ago (2016-07-18)[1]) Xbox One
38.14393.0.0 (July 18, 2016; 8 years ago (2016-07-18))

Written inC++[2]
EnginesEdgeHTML,[3] Chakra
Included withWindows 10, Windows 10 Mobile, Windows Server 2016, Xbox One
Websitewww.microsoftedge.com

Microsoft Edge (codename "Spartan") is a web browser developed by Microsoft and included in the company's Windows 10 operating systems, replacing Internet Explorer as the default web browser on all device classes. Microsoft says that it is designed to be a lightweight web browser with a layout engine built around web standards.[4] The only plug-in it supports is Adobe Flash Player; it does not support ActiveX or Browser Helper Objects. It has features not supported by Microsoft's earlier Internet Explorer browsers, including integration with Cortana, annotation tools, and a reading mode. Extension support was developed and added in preview builds in March 2016, and released with the Windows 10 Anniversary Update on August 2, 2016.

Features

Desktop view for Microsoft Edge on mobile

Microsoft Edge is the default web browser on Windows 10, Windows 10 Mobile, and Xbox One consoles, replacing Internet Explorer 11 and Internet Explorer Mobile.[5] Microsoft initially announced that Edge would support the legacy Trident (MSHTML) layout engine for backwards compatibility, but later said that, due to "strong feedback", Edge would use a new engine, while Internet Explorer would continue to provide the legacy engine.[6]

The browser includes an integrated Adobe Flash Player, a PDF reader and supports asm.js.[7]

Edge does not support legacy technologies such as ActiveX and Browser Helper Objects, and will instead use an extension system.[3][8][9] Internet Explorer 11 will remain available alongside Edge on Windows 10 for compatibility; it will remain nearly identical to the Windows 8.1 version and not use the Edge engine as was previously announced.[3][5][8]

Edge integrates with Microsoft's online platforms: it integrates with the Cortana digital assistant, available in some countries, to provide voice control, search functionality, and dynamic, personalized information related to searches within the address bar. Users can make annotations to web pages that can be stored to and shared with OneDrive.[10] It also integrates with the "Reading List" function and provides a "Reading Mode" that strips unnecessary formatting from pages to improve their legibility.[10]

Preliminary support for browser extensions was added in March 2016, with build 14291; three extensions were initially supported. Microsoft indicated that the delay in allowing extensions and the small number was due to security concerns.[11]

EdgeHTML

EdgeHTML is a proprietary layout engine developed for Edge. It is a fork of Trident that has removed all legacy code of older versions of Internet Explorer and rewritten the majority of its source code to support web standards and interoperability with other modern browsers.[12][13] EdgeHTML is written in C++.[14] The rendering engine was first released as an experimental option in Internet Explorer 11 as part of the Windows 10 Preview 9926 build.[15]

EdgeHTML is meant to be fully compatible with the WebKit layout engine used by Safari, Chrome and other browsers. Microsoft has stated that "any Edge-WebKit differences are bugs that we’re interested in fixing."[16]

A review of the engine in the beta Windows 10 build by AnandTech found substantial benchmark improvements over Trident; particularly JavaScript engine performance, which had come up to par with that of Google Chrome.[17] Other benchmarks focusing on the performance of the WebGL API found EdgeHTML to perform much better than Google Chrome and Mozilla Firefox.[18]

Development

In December 2014, writing for ZDNet, technology writer Mary Jo Foley reported that Microsoft was developing a new web browser codenamed "Spartan" for Windows 10. She said that "Spartan" would be treated as a new product separate from Internet Explorer, with Internet Explorer 11 retained alongside it for compatibility.[19]

In early January 2015 The Verge obtained further details surrounding "Spartan" from sources close to Microsoft, including reports that it would replace Internet Explorer on both the desktop and mobile versions of Windows 10.[20] Microsoft officially unveiled "Spartan" during a Windows 10-focused keynote on January 21, 2015.[10] It was described as a separate product from Internet Explorer; its final name was not announced.[21]

"Spartan" was first made publicly available as the default browser of Windows 10 Technical Preview build 10049, released on March 30, 2015.[22] The new engine used by "Spartan" was available in Windows 10 builds as part of Internet Explorer 11; Microsoft later announced that Internet Explorer would be deprecated on Windows 10, and would not use the"Spartan" engine.[5][23]

On April 29, 2015, during the Build Conference keynote, it was announced that "Spartan" would officially be known as Microsoft Edge.[24] The browser's logo and branding was designed to maintain continuity with the branding of Internet Explorer.[25] The Project "Spartan" branding was used in versions released after Build 2015. On June 25, Microsoft released version 19.10149 for Windows 10 Mobile which included the new brand. On June 28, version 20.10158 followed for the desktop versions, also including the updated branding. On July 15, Microsoft released version 20.10240 as the final release to Insiders. The same version was rolled out to consumers on July 29.

On August 12, Microsoft started the preview program for the next version of Microsoft Edge. They released version 20.10512 to Mobile-users. 6 days later followed by version 20.10525 for desktop users. The preview received multiple updates. On November 5, 2015, Microsoft released version 25.10586 as the final release for Edge's second public release for desktop users. On November 12, the update was rolled out to both desktop users and Xbox One users as part of the New Xbox Experience Update. On November 18, the update was to Windows 10 Mobile. Finally, on November 19, the update was also made available as part of the Windows Server 2016 Technical Preview 4.[citation needed]

Release history

Legend: Old version, not maintained Old version, still maintained Current stable version Latest preview version Future release
Version EdgeHTML version Release date(s) Highlights
Old version, no longer maintained: 0.10.10049[26] 12.10049 Desktop: March 30, 2015

Initial release on Windows 10

Old version, no longer maintained: 0.11.10051[27] 12.10051 Mobile: April 10, 2015

Initial release on Windows 10 Mobile; adds the following:

Old version, no longer maintained: 0.11.10052[28] 12.10052 Mobile: April 21, 2015
Old version, no longer maintained: 0.11.10061[29] 12.10061 Desktop: April 22, 2015
Old version, no longer maintained: 0.11.10074[30] 12.10074 Desktop: April 29, 2015
Server: May 4, 2015

Initial release on Windows Server 2016

Old version, no longer maintained: 0.11.10080[31] 12.10080 Mobile: May 14, 2015
Old version, no longer maintained: 13.10122[32] 12.10122 Desktop: May 20, 2015
  • New Tab page
  • InPrivate browsing
  • Pin sites to start
Old version, no longer maintained: 15.10130[33] 12.10130 Desktop: May 29, 2015
  • Revamped Settings pane
  • Hubs can now be pinned
  • Set as default PDF reader for Windows 10
  • Full screen support
Old version, no longer maintained: 16.10136[34] 12.10136 Mobile: June 16, 2015
Old version, no longer maintained: 19.10149[35] 12.10149 Mobile: June 25, 2015
  • Rebranded as Microsoft Edge
  • Address bar at the bottom on phones
Old version, no longer maintained: 20.10158[36] 12.10158 Desktop: June 29, 2015
  • Optional Home-button
  • Import favorites from other browsers
  • Dark theme
  • Improved hub
Old version, no longer maintained: 20.10159[37] 12.10159 Desktop: June 30, 2015
Old version, no longer maintained: 20.10162[38] 12.10162 Desktop: July 2, 2015
Old version, no longer maintained: 20.10166[39][40] 12.10166 Desktop: July 9, 2015
Mobile: July 10, 2015
  • Updated about:flags page
  • Localhost loopback is now enabled by default[41]
Old version, yet still maintained: 20.10240[42] 12.10240 Desktop: July 15, 2015

First public release

  • Performance improvements[43]
Old version, yet still maintained: 20.10512[44] 12.10512 Mobile: August 12, 2015
Old version, yet still maintained: 20.10514[45] 12.10514 Server: August 19, 2015
Old version, yet still maintained: 20.10525[46] 12.10525 Desktop: August 18, 2015
  • Basic support for Object RTC
Old version, yet still maintained: 20.10532[47] 12.10532 Desktop: August 27, 2015
  • Improved render engine with Pointer Lock support, canvas blending modes, asm.js support by default and more
Old version, yet still maintained: 20.10536[48] 12.10536 Mobile: September 15, 2015
Old version, yet still maintained: 21.10547[49] 13.10547 Desktop: September 18, 2015
  • Object RTC API now fully supported[50]
  • EdgeHTML has been updated to version 13
  • Improved tab management
Old version, yet still maintained: 21.10549[51] 13.10549 Mobile: October 14, 2015
Old version, yet still maintained: 23.10565[52] 13.10565 Desktop: October 12, 2015
  • Tabs can now be previewed by hovering over them
  • Reading list items and favorites are now synced
  • Updated Settings pane
Old version, yet still maintained: 25.10572[53] 13.10572 Mobile: October 20, 2015
  • Hub options are now available in the ellipses menu
Old version, yet still maintained: 25.10576[54] 13.10576 Desktop: October 29, 2015
  • Media Casting
  • Cortana Integration with PDFs
Old version, yet still maintained: 25.10581[55] 13.10581 Mobile: October 29, 2015
Old version, yet still maintained: 25.10586[56] 13.10586 Desktop: November 5, 2015
Xbox: November 12, 2015
Mobile: November 18, 2015
Server: November 19, 2015

Second public release and initial release on Xbox One

  • Stability improvements
Old version, yet still maintained: 25.11082[57] 13.11082 Desktop: December 16, 2015
  • Experimental support for VP9
Old version, yet still maintained: 27.11099[58] 13.11099 Desktop: January 13, 2016
  • Initial foundation work for EdgeHTML 14
Old version, yet still maintained: 28.11102[59] 13.11102 Desktop: January 21, 2016
  • Context menu for navigation buttons
Old version, yet still maintained: 28.14251[60] 13.14251 Desktop: January 27, 2016
Old version, yet still maintained: 28.14257[61] 13.14257 Desktop: February 3, 2016
Old version, yet still maintained: 31.14267[62] 14.14267 Desktop: February 18, 2016
Mobile: February 19, 2016
  • Improved favorites management
  • Improved download management
  • EdgeHTML has been updated to version 14
  • New experimental flags
Old version, yet still maintained: 31.14271[63] 14.14271 Desktop: February 24, 2016
Old version, yet still maintained: 31.14279[64] 14.14279 Desktop: March 4, 2016
Old version, yet still maintained: 31.14283[65] 14.14283 Mobile: March 10, 2016
Old version, yet still maintained: 34.14291[66] 14.14291 Desktop: March 17, 2016
Mobile: March 17, 2016
  • Preliminary extension support added
  • Pinned tab support added
  • Ability to copy and paste links in Microsoft Edge added
  • Preview support for VP9 video format added
Old version, yet still maintained: 34.14295[67] 14.14295 Desktop: March 25, 2016
Mobile: March 25, 2016
  • Fixed an issue where Edge would refresh the tab if you pressed caps lock in a password field
Old version, yet still maintained: 34.14300 14.14300 Server: April 27, 2016
Old version, yet still maintained: 37.14316[68] 14.14316 Desktop: April 6, 2016
  • Download reminders
  • Default save locations can be changed
  • Favorite Tree View improvements
  • New JavaScript features
  • Experimental JavaScript ES6 Regex symbols support
  • New Web Platform features
Old version, yet still maintained: 37.14322 14.14322 Mobile: April 14, 2016
Old version, yet still maintained: 37.14327 14.14327 Mobile: April 20, 2016
Old version, yet still maintained: 37.14328 14.14328 Desktop: April 22, 2016
Mobile: April 22, 2016
  • Improved F12 developer tools
  • Experimental support for Beacon
  • Improved accessibility
Old version, yet still maintained: 37.14332 14.14332 Desktop: April 26, 2016
Mobile: April 26, 2016
Old version, yet still maintained: 38.14342 14.14342 Desktop: May 10, 2016
  • Swipe gestures to navigate back and forward
  • Support for Beacon, Web Notifications and Fetch API
Old version, yet still maintained: 38.14352 14.14352 Desktop: May 31, 2016
Current stable version: 38.14393 14.14393 Desktop: August 2, 2016
Mobile: August 16, 2016

Third public release and initial release for Windows 10 Holographic

Performance

Early benchmarks of the EdgeHTML engine—included in the first beta release of Edge in Windows 10[69] Build 10049—had drastically better JavaScript performance than Trident 7 in Internet Explorer 11, with similar performance to Google Chrome 41 and Mozilla Firefox 37. In the SunSpider benchmark, Edge performed faster than other browsers,[70] while in other benchmarks it operated slower than Google Chrome, Mozilla Firefox and Opera.[71]

Later benchmarks conducted with the version included in 10122 showed significant performance improvement compared to both IE11 and Edge back in 10049. According to Microsoft's benchmark result, this iteration of Edge performed better than both Chrome and Firefox in Google's Octane 2.0 and Apple's Jetstream benchmark.[72]

In July 2015 Edge scored 377 out of 555 points on the HTML5test. Chrome 44 and Firefox 42 scored 479 and 434 respectively, while Internet Explorer 11 scored 312.[73]

In August 2015 Microsoft released Windows 10 Build 10532 to insiders, which included Edge 21.10532.0. This beta version scored 445 out of 555 points on the HTML5test.[74]

With the release of Windows 10 Build 14390 to insiders in July 2016, the test score of the browser's development version was 460 out of 555 points. Chrome 51 scored 497, Firefox 47 scored 456, and Safari 9.1 scored 370.

Power efficiency

In June 2016 Microsoft published benchmark results to prove superior power efficiency of Edge in comparison to all other major web browsers.[75] Opera questioned the accuracy and provided their own test results where Opera came out on top. Independent testing by PC World confirmed Microsoft's results.[76]

Reception

In an August 2015 review of Windows 10 by Dan Grabham of Techradar, Microsoft Edge was praised for its performance, despite not being in a feature-complete state at launch.[77] Andrew Cunningham of Ars Technica praised the browser for being "tremendously promising", and "a much better browser than Internet Explorer ever was", but criticized it for its lack of functionality on launch.[78] Thom Holwerda of OSNews criticized Edge in August 2015 for its hidden URL bar, lack of user friendliness, poor design and a tab system that is "so utterly broken it should never have shipped in a final release". He described the browser's implemented features as "some sort of cosmic joke", saying that "infuriating doesn't even begin to describe it".[79]

Data from August 2015, a few weeks after release, showed that user uptake of Edge was low, with only 2% of overall computer users using the new browser. Among Windows 10 users usage peaked at 20% and then dropped to 14% through August 2015.[80]

In October 2015 a security researcher published a report outlining a bug in Edge's "InPrivate" mode, causing data related to visited sites to still be cached in the user's profile directory, theoretically making it possible for others to determine sites visited. The bug gained mainstream attention in early February 2016,[81] and was fixed with a cumulative update on February 9.[82]

Market share

Desktop/laptop browser statistics
Google Chrome
62.38%
Mozilla Firefox
15.42%
Internet Explorer
10.73%
Safari
4.59%
Microsoft Edge
3.04%
Opera
1.78%
Other
2.05%
Desktop web browser market share according to StatCounter for July 2016.[83]

See also

References

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  2. ^ Lextrait, Vincent (March 2016). "The Programming Languages Beacon, v16.0". Retrieved March 4, 2016.
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Further reading