Is there an update for Harmony 11? An in-between version like 11.5 or something. Or are we just waiting for Harmony 12?
The announcement regarding Yosemite compatibility came after the initial release. Part of the solution was to download and reinstall the software. I know this is a Mac only issue but you should contact Support and ask what the current version number is and compare it to yours. Harmony 11 came out in June 2014. It seems that a new version comes out roughly every 12 months. There were several incremental updates between 10 and 11.
Currently there is only the Harmony 11.1 Release Notes available: