For Mac users: I contacted the COSY Infinity support team and they said that the installation package of version 9.2 is good for running COSY 10.1 beam physics environment. After installing the v9.2 you should be able to run the “cosy.fox” file (from
http://cosy.pa.msu.edu/download/) which is basically the 10.1 beam physics package. This run will create the “COSY.bin” file (which corresponds to the 10.1 version) and by having it in your working directory you should be able to run any “.fox” file. Works fine on macOS 10.10.5.