I'm not sure what the maximum upload size is set to right now. We can adjust it higher, but our sites aren't very big so we haven't hit the limit. We also have

I'm not sure what the maximum upload size is set to right now. We can adjust it higher, but our sites aren't very big so we haven't hit the limit. We also have a command line file sync tool without any particular file upload size limitation. If you change just one file, you can upload a whole new zip, or use the command line tool with has a more intelligent sync mechanism. Yes, you can make changes as often as you want. :-)