Well, it’s finally time! General availability of the new Microsoft Edge is expected January 15, 2020 in over 90 languages and for both Windows and MacOS. Notably this version of Edge uses Blink (replacing the previous engine) and deploys new anti-tracking tech by default.
A new tracking prevention default in Microsoft Edge. We believe you should know who has access to your data and have the control to choose what you share. Microsoft Edge starts with tracking prevention on by default, so you don’t have to take any actions to immediately start having a more private browsing experience. With SmartScreen and Tracking prevention, we help protect you from phishing schemes, malicious software and new types of malware like cryptojacking. Microsoft Edge and Bing also now offer new InPrivate mode across your entire web experience so your online searches and browsing are not attributed to you, offering you more control over your personal data.
https://blogs.windows.com/windowsexperience/2019/11/04/introducing-the-new-microsoft-edge-and-bing/#g0X6wgCmJGwjGyth.97
Release Candidates are currently available, and it may be worth going over your site with one just to understand what is changing from both a rendering, as well as an analytics/tagging perspective. Microsoft has written about things you should check here. I have written about this topic in Tag Management – Part 3.