The maintainer posted a comment on the plugins area a few weeks ago that 2.9 and 3.0 are going to be tested and update, hopefully, soon. Stacey doesn't reply to questions on the forums much but if you go to the plug-ins page, you're more likely to get an answer.
Face-to-face (plugin)
Face-to-Face not supported in moodle 2.9
This discussion has been locked so you can no longer reply to it.