From a user perspective, the Git versions look identical. Everything from Mozilla’s zip download tag to the version number you described (0.4-Git) is the same. The only way I can tell the difference between my two versions is that one has the dodge skill and the other doesn’t. I also have no way of telling when it’s getting updated.
I’d love to help beta test, but there’s only so much I can do without organization. Some direction would be helpful as well, if I had some idea which bits of code have changed or what you think might be buggy. An appropriate place to post results would also be helpful.
Thanks