Back in November of last year, Microsoft put out a tweet asking for feedback on how to improve the F12 tools (or developer tools) for Internet Explorer at a time when Edge was all but a twinkle in the eye, in terms of development.
Now, those improvements will obviously get merged into Edge, and that's exactly what has happened as Ruben Rios, the Program Manager "for Internet Explorer" (and Edge, we assume!) details in a blog post over on Blogging Windows.
There are too many improvements in the dev tools for Internet Explorer 11 to mention, so we suggest heading over to the blog post for a detailed run down, but many of the features talked about in November 2014 have indeed made it across, including a move away from the toolbar that featured only icons off to the left of the window in favor of a navigation that displays text instead of icons, as well as easier accessibility for navigation options in windowed mode.
In addition, you can try all of these improvements right now, as they are included in build 10074, which is the latest Windows Insider build of Windows 10 that includes Edge, although it is still called 'Project Spartan' in this release.
Via: Blogging Windows