OnlyMac Software today released MacFamilyTree 3.1, an update to its popular shareware genealogy software that helps users to document, store, and display information about their family. Version 3.1 brings Mac OS X 10.2 (Jaguar) support and several other improvements, all of which can be found here. MacFamilyTree is available for Mac OS 8.6 or higher and Mac OS X, priced at US$25.