You missed a lot
You missed a lot of improvements. Here are the main non-mentioned ones:
* How could you not mention the fact that the back and forward buttons are at last fully functional, and one can right click them to wade through history. Probably the feature I missed more in Edge so far, after the tree-like favorites.
* Also, Edge has received additional power saving improvements, nothing to sneeze at for the people on the go.
* More compliant, extended accessibility features.
* Website notifications
* Forward & Backward with touch (finger swipe)
* Additional dev options in about:flags, and tcp fastopen
* Ink: there is a new, very practical virtual ruler.
* DLP: Windows Information Protection to separate personal & corporate data & prevent blacklisted apps to access corporate data through policies.
* New Windows Store with many much needed improvements and additional monetizations possibilities, mostly for game editors.
* Windows Hello biometric security extended to apps and Web sites.
* Integration with Phones, send SMS from PC
* Much needed improvements in Settings
* Taskbar improvements
* Notification improvements
* Huge amount of features in the anniversary update for Xbox One, including language-region independence, enhancements to the Windows Store, Cortana, Background Music, and more.