New version? What files to include?

My Application contains app 120 self designed dll's (plugins) as well as a framework dll and an UI exe.

When I create new version in WyBuild, should I only include the files that have been changed in my application or can I always include all files (ie 121 dlls + 1 exe) and is Wybuild able to see what files have changed?

So in short: Do I have to manage the changes or will Wybuild do that? I am asking this because when I create a new Version, the file list starts empty which poses the assumption that I should add changed files only...

It's so easy to oversee stuff in the walkthrough so thx for the response. Maybe I'll get to that part later. I am now at the "the advertised shortcut" issue...