Hi, Your last upload was 2016-10-12 for RC bug with patch provided by others....
Also, with 2 bug reports with patches from me from 2015/Sep and 2017/Apr with noresponse, I guess the maintaine is practically MIA. I am going to make upload of fixed version based on my github version source tree. https://github.com/osamuaoki/imediff2 Considering the last upstream version was released 2007 and upstream didn't responded my previous trial to contact... I think forked source tree should be OK. I will try to clean up code a bit. Osamu