Last month, Microsoft had announced that it would be ending support for the Edge Legacy desktop application on March 9, 2021. After this date, Microsoft Edge Legacy would no longer be receiving security updates.

With the support over, you will now no longer receive security updates for Edge Legacy. Further, the new Microsoft Edge will be available as part of the Windows 10 cumulative monthly security update — also known as Windows 10 Update Tuesday (or “B”) release — on April 13, 2021.

When you apply this update to your devices, the out-of-support Microsoft Edge Legacy desktop application will be removed from devices running Windows 10 RS4 through 20H1, assuming you are using Windows 10 version 1803 or higher and replace it with the new Microsoft Edge.

Note: This replacement will also occur if you apply the optional Windows 10 March Preview (or “C”) release.

The following versions of Windows 10 will be impacted with the Windows 10 Update Tuesday (or “B”) release. This replacement will also be part of the optional Windows 10 March Preview (or “C”) release for the versions below unless otherwise indicated.

  • Windows 10, version 1803, all editions (April 2018)

Note: This version will not be included in the optional Windows 10 March Preview release.

  • Windows 10, version 1803, all editions (April 2018)
    • Note: This version will not be included in the optional Windows 10 March Preview release.
  • Windows 10, version 1809, all editions (October 2018)
  • Windows 10, version 1903, all editions (May 2019)
    • Note: This version is out of support for desktop
  • Windows 10, version 1909, all editions (October 2019)
  • Windows 10, version 2004, all editions (May 2020)
  • Windows 10, version 20H2, all editions (October 2020)
    • Because Windows 10, 20H2 already uses the new Microsoft Edge as its default browser, it will not be reinstalled; only Microsoft Edge Legacy will be removed.

For those who have already installed the new Microsoft Edge, applying this update will not reinstall the new Microsoft Edge and will only remove Microsoft Edge Legacy.

Further, Microsoft will continue to support other apps that use EdgeHTML — the rendering engine for Microsoft Edge Legacy. The change does not affect WebView. To develop apps for the new Microsoft Edge, you can use WebView2, the Chromium-based version of Microsoft’s WebView.

With the final security updates for Microsoft Edge Legacy arriving yesterday, users using this browser will still be secured until the new Edge is available with the Windows 10 Update Tuesday (or “B”) release next month. Microsoft recommends its users to update to the new Microsoft Edge to continue using Office 365 web apps like Microsoft Teams. For more information, you can refer to this Docs page.

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