You can select either the newer version 4.0 of SDA or the older version 3.5. Both versions produce the same output. Only the user interface is different.
Note that for instructional purposes this version of the GSS dataset is set up in SDA with 'No Weight' as the default. (Usually 'COMPWT' is the default weight variable, and 'No Weight' is available as one of the choices.)
For a discussion of the various weight variables, see the Short Introduction in the online codebook.