Microsoft is replacing their Edge browser
What this means is that Microsoft will still have it’s own browser, but they will no longer be building their own html/css/js rendering system that powers the browser. The Edge browser’s html rendering “engine” is called EdgeHTML. Chrome/Chromium use the Blink browser engine and so will Microsoft’s new browser.
What does this mean for day to day website production?
There will eventually be one less browser (browser engine technically) to test your html/css layouts against, which is a good thing for testing and compatibility. Down the road there may be security issues related to having fewer browser engines rendering websites. But for website builders, this will greatly simplify our jobs.