Hi, I have a questions about PCFF used in MaterialsStudio.

It is said that PCFF is updated constantly in MaterialStudio and thus previous version is also available.

But where can I find the detail of the update? Does it change method of quantum mechanics or the set of model molecules from original paper?

To be more specifically, I am wondering what kind of method is used and what model molecules are added/deleted for parameters fitting of silanes (Sun, H. Macromolecules 1993, 26, 5924-5936).

Thank you.