Difference between SDK versions?

[scaerachee]

Hey, fantastic codework here and an invaluable resource for working with these radar devices.
I have one of the newer sensor chips, the xWRL6432, which from what I can tell seems to run on SDK version 5.x.

What is the difference between your versions of the code (SDK 1, 2 and 3) and what would be needed for me to update it to SDK 5? I see that most of the difference lies in the read and parse config file function, but I am unsure of how exactly they differ.