BornAgain 1.8 has been released.
This release improves support for fitting: all reasonable parameters can now be used for fitting, both in Python and the GUI.
BornAgain now also supports the graded layer approximation. The user can choose to subdivide layers into a number of slices. For each slice, the Fresnel coefficients will be calculated from the averaged materials that take into account the particle content in the slice. Related to this approximation, particles can now also be defined to cross layer interfaces.