The browser will be finished on 17 August, 2021, says Microsoft.
Starting November of this year, Microsoft Office 365 Apps will start to stop working in Internet Explorer 11. Also on the chopping block is the non-Chromium version of Microsoft Edge.
You may not realize this, but Internet Explorer causes lots of headaches for web development. While it used to be the most used browser, now its outdated engine and rendering creates idiosyncrasies that web developers have to work around. So, in that respect, this is good news for your website, and will hopefully save you a little money.
At the same time, it’s a little bit of bad news. Microsoft’s new Edge browser is based on Google’s Chromium, which is the same source the Google’s Chrome is generated from. That means the browsers are homogenizing around a single platform. This is what happened back in the Internet Explorer 6 days and caused compatibility problems with web code and browser code. Here’s hoping we don’t end up in that boat again.