The current BornAgain GUI is in beta state. It allows already to create basic multi-layered samples, populate them with particles, run scattering simulations and save the results in a publication quality form. But it is still limited with respect to the functionality available via Python scripting.
The following features are not yet included into the GUI: polarized neutrons and magnetic domains, fitting experimental data. Use BornAgain via Python scripting to get them.
We can not guarantee that newer versions of BornAgain will be able to read older versions of GUI project files while GUI is in beta state. We expect backward compatibility of project files starting from the release v. 2.0.