Say hello to refactoring!
- Implement a quite reliable project-wide rename functionality based in the duchain. It features a very nice preview using the uses-widget, and can rename everything, be it full classes including constructors/destructors/definitions, be it functions, which will be renamed overload-aware, or whatever else.

Don't expect 100% reliability yet, but it seems to generally work quite good. Of course it does not only rename the items themselves, but also all their uses in all loaded+processed projects, that's the interesting thing about it. ;-)

The functionality is accessible through the editor context menu, or the code-browser declaration menu.