Version/build fields for an iOS app include:
"Version" CFBundleShortVersionString (String - iOS, OS X) specifies the release versi
AFAIK, off the top of my head, you only need to increment the build number CFBundleVersion. Incrementing the short version string is not necessarily needed, though you probably should increment it, as it does tell the user that the app is new. Apple does say that numbering should follow traditional software versioning conventions, however, and iTunes Connect may complain if you try to re-upload an already existing version.
Long story short, it may work, but probably not.