Dear Colleagues: OOF2 version 2.0.5a1 is now available on the OOF2 website, http://www.ctcms.nist.gov/oof/oof2 This version fixes a few moderately important bugs, and adds new machinery for handling interfacial material properties. The interfacial material code is in its infancy and still under development, which is why this version is an alpha release. The code is otherwise stable, so don't let the fact that it's an alpha release deter you from downloading it. More details are available in the change log, at http://www.ctcms.nist.gov/oof/oof2/changes.html. Sincerely, The OOF Team