What is the difference between Win10 Edge browser and EdgeHTML?

▲Win10 preview version 10547 Edge browser can not display EdgeHTML version number
Microsoft Edge project manager Kyle Pflug mentioned in the blog, Edge browser and EdgeHTML are two different s things. Edge is a browser, and EdgeHTML is a rendering engine for processing and rendering web page elements. Since the two are fundamentally different, their updated version is completely different. If a website relies on the engine version number, not the browser version, it may cause a website error.

▲ Edge Microsoft blog in a browser can already show EdgeHTML engine version
Given EdgeHTML version changes on the user agent string too often, Microsoft requires Web developers do not depend on the version number, but should Make a judgment based on the browser version number. Microsoft will also provide the EdgeHTML version number in the future Win10 version of the Edge browser settings.