Microsoft Edge has a cleaner design, has a better HTML rendering engine and will support browser extensions (which are conveniently variants of Chrome or Firefox extensions – yay!). We have been told that things may still change before the final release, but this is very close to final.
All of this is not completely unique you may think, but this could contribute greatly in preventing Windows users from installing another browser, which is ground zero to control the web user experience (and getting some critical insight by data-mining).
During the Microsoft Build 2015 demo, we have seen note-taking abilities and Cortana integration. Microsoft wants the web browsing experience to be more active, and it wants people to be “doing” stuff.
From a developer’s perspective, Microsoft has added built-in methods to help its community. For instance, if you go to a website, which happens to have a Windows Store app, the browser may feature this download to ease app discovery. Here’s today’s video at BUILD: