First, I din't download the new client because I was banned for no reason, so I tried to get unbanned before downloading it. Second, after I got unbanned, I used all of my 3GB Internet, so I can't download the new client. Third, I tried to log in using the old client, but it worked, so I immediately logged off and asking people in ChatBox will I get banned for using the old client and not the new one. So the question is, will I get banned for not downloading new client and using the old one instead?
Maybe you werent banned at all, or you got unbanned? From what I know, its just different clients, nothing else. And what have you done that could get you banned at all?...
If you do not have the newest client, you won't have the newest WZ files. If you don't have the newest WZ files, your character will crash due to your files not having the newest information other clients do, your character may get stuck in maps, etc. So yes, you need the newest client when it is posted.