Curious as to why you want to a back dated software version?
Asking because I may need that July 2016 version too. We were observing a bug with our software and wanted to update it. So we removed the old version (I am mad at myself for not remembering the version) and attempted to install the "myDMX 2.1 Software for MAC. Feb 23, 2017" version. It will not load after the install (I've emailed asking for help).
So we installed the "myDMX 2.1 Software for MAC. Nov. 21, 2016" version, and it loads and works, but we have run into a nasty bug where when we open the software, it drops 5 of our mega tripar profile plus patches. Its basically not functional for us (church) right now unless we leave the mac-mini online and software open.
Tanguero - can you get me that software too? email@example.com