Versioning Web Services
Don Smith, PM of Web Service Software Factory P&P team has an interesting conceptual post about one of the coolest improvement done for December release: message versions.
I believe this could help in understanding the new versioning related receipt in WSSF
Useful new articles
Add to that examinations of excellent February MSDN Magazine Service Station article of Aaron Skonnard and reference implementation which combines WSSF and WCSF and I believe the whole WSSF magic would start to be sweet as apple pie