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Internet Explorer / Edge

Retirement Dates Published August 12, 2020:

Microsoft 365 says Farewell to IE 11

30-11-2020MS Teams stops supporting IE 11
31-12-2020Azure DevOps Services stops supporting IE 11
31-03-2021Azure Portal stops supporting IE 11
17-08-2021Microsoft ends support for IE 11 across Microsoft 365 Apps, and other web services like Office 365, OneDrive, and Outlook.

Windows 10 says Farwell to Edge Legacy

31-12-2020Azure DevOps Services stops supporting Edge Legacy
09-03-2021End of Windows updates for Edge Legacy
13-04-2021Future Windows 10 updates will remove Edge Legacy

Read more ...

Retirement Published May 19, 2021:

Windows 10 says Farwell to IE 11

15-06-2020 Microsoft Edge with IE mode is replacing Internet Explorer 11 desktop application on Windows 10. IE 11 will go out of support and be retired on June 15, 2022 for certain versions of Windows 10.

Read more ...

Microsoft Edge Legacy

Edge was the default browser for Windows 10.

It was built with Microsoft's browser engine EdgeHTML and their Chakra JavaScript engine.

The first versions of Edge (12-18), are now referred to as "Edge Legacy".

Edge Legacy was not available for Windows 7 or Windows 8.

The Microsoft support for Edge Legacy ended on March 9, 2021.

Future Windows updates will replace Edge Legacy with The New Edge.

The New Edge

The new Microsoft Edge is Chromium based with Blink and V8 engines.

It was released in January 2020, and is available for Windows 7, 8, and 10.

It can also be downloaded for macOS, iOS, and Android.

The new Edge follows the Modern Lifecycle Policy (updates on an approx. six-week cycle).

Developers Support?

IE 11 is still a component of many Windows operating system and follows the Lifecycle Policy for the product on which it is installed:

SystemDefault Browser
Windows Embedded Compact 7Internet Explorer 7
Windows Embedded Compact 2013Internet Explorer 7
Windows 7Internet Explorer 11
Windows 8.XInternet Explorer 11
Windows 10Internet Explorer 11
Windows Server 2012Internet Explorer 11
Windows Server 2012 R2Internet Explorer 11
Windows Server 2016Internet Explorer 11
Windows Embedded Standard 7Internet Explorer 11
Windows Embedded POSReady 7Internet Explorer 11
Windows Thin PCInternet Explorer 11
Windows Embedded 8 StandardInternet Explorer 11
Windows 8.1 Industry UpdateInternet Explorer 11

Older Applications

Many older PCs (like in public libraries) are still using Internet Explorer.

Many legacy web applications are using Internet Explorer.

Many legacy web applications are using Internet Explorer runtime DLLs.

Many AJAX based applications are using Microsoft ActiveX components.

In order to ease the migration from Internet Explorer, Microsoft Edge offers Internet Explorer Mode, providing backward compatibility and enabling customers to continue to run legacy web applications.

Government Recommendations

Furthermore, some governments recommends continuing to support IE11:

www.gov.uk //// designing-for-different-browsers-and-devices