Anyone have a clue what this update does?
From the vague Macromedia Website:
About the Contribute 3.1 and Contribute Publishing Services 1.1 Updates
The Contribute 3.1 English Updater fixes several problems found with the English version of Contribute 3 after its release. The updater is available for Windows and Macintosh. The Contribute Publishing Services (CPS) 1.1 Updater fixes several problems found with the English version of CPS 1.0 after its release. CPS 1.1 also includes several new features.