Replacement of Microsoft Edge with Chromium version will be enforced with April 2021 update

In January 2020, Microsoft distributed Microsoft Edge, which changed the browser engine from the proprietary 'EdgeHTML' to the open source 'Chromium'. The Chromium version is just one option, and those who want to use it could continue to use the legacy version of Edge of the EdgeHTML engine, but with the April 2021 update, the legacy version of Edge will be removed. It was decided to.

New Microsoft Edge to replace Microsoft Edge Legacy with April's Windows 10 Update Tuesday release --Microsoft Tech Community

Legacy Edge will no longer be supported on March 9, 2021 and will no longer receive security updates. In response to this, the monthly security update distributed on April 13, 2021 will remove the legacy Edge and replace it with the Chromium Edge.

The affected versions of Windows 10 are:

・ Windows 10 version 1803 (released in April 2018)
· Windows 10 version 1809 (released October 2018)
・ Windows 10 version 1903 (released in May 2019)
・ Windows 10 version 1909 (released in October 2019)
・ Windows 10 version 2004 (released in May 2020)
・ Windows 10 version 20H2 (released in October 2020)

If you have already applied 20H2, the Chromium version of Edge has already been installed, so when you apply the update, only the legacy version of Edge will be deleted.

As 'Delete' says, the legacy version of Edge will no longer be available on the device, and will not be available in a 'side-by-side experience' running multiple versions of Edge. However, EdgeHTML will continue to be supported and will not affect other applications that utilize EdgeHTML.

By the way, if you really want to keep the legacy version of Edge, there is a way to not apply the update, but Microsoft says, 'We do not recommend skipping this update. The cumulative monthly security update for Windows is Windows. We will provide important updates to the 10 OS. '