Wow, the Anniversary Developer Preview is full of amazing features:
- Debugger changes
- Method overloading
- More control add-ins available
- Working with camera
- More system tables unblocked
Have a look here for the full details:
https://blogs.msdn.microsoft.com/nav/2017/12/20/nav-development-preview-anniversary-update/
To jump directly to an updated image, go to the sign up at http://aka.ms/navdeveloperpreview.