Dear OOF Users -- A new version of OOF3D, 3.2.0, is now available on the OOF3D website, http://www.ctcms.nist.gov/oof/oof3d This version is a major update from 3.1.2. The big changes are that it no longer relies on an old version of the vtk library, and now supports native graphics on macOS. Because compiling for macOS is a bit complicated, a binary installer is available for Macs. Version 3.2.0 includes many other improvements. For the full list, see the change log at http://www.ctcms.nist.gov/oof/oof3d/changes.html. Please let us know if you encounter any problems. Report bugs to oof_bugs@nist.gov and send other comments to oof_manager@nist.gov. We especially like to hear about how you're using OOF2 and OOF3D now and how you'd like to use it in the future. Sincerely, The OOF developers Steve Langer Andrew Reid Gunay Dogan