READ MORE But anyone using the Legacy version of Microsoft Edge may soon have no choice but to upgrade. Last summer Microsoft announced that the Legacy version of Microsoft Edge was reaching its end of support of March 9 2021. At the time that date seemed a long ways away but now we're just weeks away from this pivotal date. After March 9 the Legacy Edge will no longer receive crucial support updates. So if you want to stay safe while surfing the web you'll need to switch over to the Chromium-version of Edge. Announcing the news last August, the Windows 10 makers said: "Nearly two years ago, we started working on the new Microsoft Edge, listening to our customers’ needs for world-class compatibility (including legacy app support), security, privacy, easy and unified manageability, and productivity.