Forum Discussion
Stable Release
How exactly will we install the stable edition of Chromium Edge on Windows and Mac?
Automatically from Windows update
according to this post, if your Windows 10 is at least version 1803 and it's either Pro or Home edition, you will automatically receive the new Edge browser from Windows update. beginning January 15.
You will be most likely able to download the stable version right from the front page too. for both Windows and Mac
https://www.microsoftedgeinsider.com/en-us/
Also here are more info about the details how new Edge replaces the legacy Edge
https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-sysupdate-windows-updates