Microsoft's Chromium-based Edge browser has reached beta status, meaning that Microsoft feels like the new version of Edge is available for everyday use for Windows and MacOS.
The new Edge beta channel allows users to download major new builds every six weeks, joining the weekly developers-only channel as well as the nightly "canary" builds. Microsoft's Chromium-based Edge browser shares the same core rendering engine as Google Chrome, though Microsoft has implemented some features differently.
Microsoft is preparing to phase out the EdgeHTML-based version of Edge in favor of the new Chromium version, which is designed to allow users access to Chrome extensions and plug-ins, and attract more users to the browser. The beta channel will be the last official channel before launch, which will happen at some future, undisclosed time. It's also the most stable channel, while more features (and more bugs!) are available in the Canary and Developer channels.