Right now a patch from [OLD version] to [LAtest version] gets built. Meaning you can N+1 new "update files". This is because we currently use "direct patches". In wyBuild 2.7 we're adding "incremental patches", meaning you'll only have to release a single file for every update (the drawback being that if a customer of yours has a really old version then they have to download *each* intermediate update to get to the latest version, instead of just directly updating to the latest version).