No, its not version of build.
This is product version which is available in the Installer Properties (see Product Information - Product version). Screenshot you can see in the first posting in this topic.
Just to be clear - you have two versions. One is four digits Build version (Build Specifications->New->Application (EXE) ), which written inside of executable and can be easily obtained, and another one is three digits Installer version (Build specification->New->Installer), which can't be easily obtained. You can change both of them, or set both to auto-increment.
best regards,
Andrey.