Not sure if I fully understand, so correct me if I misunderstand. If I connect to a plain 090 server and then I try to connect to a 082 server, I would get an error? And to fix it I would have to manually delete the dll/so ? If so I understand you wanting everyone to upgrade but like purple said people are not going to upgrade right away for various reasons. I also don't recall this being a problem in other mods, in the past(has been a while though). If this is the case then this puts a lot of unneeded stress on the small amount of remaining players, most people just simply will not understand why they can't play. I am not talking about supporting an old version am just saying they should still be able to load the old version. EDIT: a word, a sentence