Omni Group has published the the last-ever v4.x update for OmniGraffle, v4.2. OmniGraffle is used to create charts, graphs and diagrams, and features options like smart guides, Bezier curves, and the ability to import and/or export to PDF, PICT and OmniOutliner. The upgrade improves import and export for Microsoft Office Visio, and has been local
