The Omni Group today has announced the release of an update to OmniOutliner, their popular outlining and note-taking application. OmniOutliner 3.6 and OmniOutliner Professional 3.6 include a number of improvements and fixes, and are a free update for existing license holders. OmniOutliner 3.6 Professional offers improved compatibility with kGTD (Kinkless Getting Things Done). kGTD is a free set of AppleScripts produced by Ethan Schoonover that work with OmniOutliner Professional to create a framework for implementing David Allen’s Getting Things Done task-management methodology. OmniOutliner 3.6 and OmniOutliner Professional 3.6 require Mac OS X 10.3.9 or later and are priced at US$39.95 and $69.95, respectively.