The Omni Group has released OmniGraffle 2.2, an update to its popular Mac OS X diagramming application. The new version provides a number of bug fixes, and enhances the ability for 2.x to read 3.0 files. “This is our halo release of the 2.0 series,” said Wil Shipley of The Omni Group. “We wanted to support our 2.0 customers with this update, but development on OmniGraffle is now focused on 3.0 and 3.0 Professional.”