How many bar bets have you lost over which release of SolidWorks supported "Multi-Body Parts?"(Answer:2003) OK I really hope this doesn't happen outside of SolidWorks World. Unless you've been very dilligent about archiving each "What's New Guide" you don't really have a way to answer these all important questions. Please don't call us at support. :)
Instead head over to Ricky Jordan's blog and peruse his archive of What's New Guides. He's compiled them going all the way back to SolidWorks 95! Of course everything was new in 95 so he's got the user guide posted instead.
Thanks to John Hall for pointing this out to me and of course to Ricky for putting it together.