Not much was changed? I can't load MOO2Civ nor any of the patched versions uploaded thereafter - or rather, when loading MOO2Civ (Patch4) I get multiple load error messages, a.o. TECH_[X] errors. As I haven't yet finished identifing all these MOO2Civ techs (they're just defined as TECH_HAPPY1/2/3 etc.), it's excruciating to correct these load errors. It also doesn't help that I don't have the individual patch files anymore, just 3 of the final uploads.
Next thing to try is comparing files with Winmerge (which I've never used before).
Anyway, will keep you posted of any progress.
(Another matter puzzling me is that Patch4 now has 1,200+ downloads but no rating...)