Fast upgrade track to IFC version agnostic solution

So you invested your time into xBIM 3 and we broke your code. Sorry for that. We believe you will like all the goodies coming with xBIM 4 (like ability to work with IFC2x3 like if it was IFC4). To learn more about what is new in xBIM 4 read this. If you already have an idea about what has happened in xBIM and you just want simple guidelines for fast upgrade here is how we did it most of the refactoring of our own code depending on xBIM Essentials:

Some of the companies using xBIM Toolkit: