https://www.theregister.co.uk/2019/08/20/microsoft_edge_chromium_hits_beta/

Microsoft has rolled out the first beta version of its Chromium-based Edge web browser.

The pace of development has been quick: Microsoft signalled its intent to rebuild Edge using the Google-sponsored Chromium browser engine in December 2018. In April 2019 preview versions were released, including a Dev channel updated weekly, and a Canary channel updated daily. By May, a download for Mac was added and in June a preview for Windows 7 and 8.