Im on beta 3, so say when the latest version is out, and I upgrade will I be unable to use the theme that I was using before the upgrade? So in other words will my beta 3 theme be unable to be used when my forum is say beta4 after the upgrade? Like will there be any errors? If a theme developer releases a newer version of the theme I am using, and I upgrade will it overwrite everything so like will I have to re modify the templates again to add the custom changes I made, so in other words will the theme go back to its default look when I update it? Thanks.