You can use the qmake variable VERSION to add version information to your library or application. See the documentation on the qmake

VERSION variable [doc.qt.nokia.com]

When creating a .dll with a version number embedded then this is done by setting

in the .pro file. This will also cause the major version number to automatically be placed in the target filename. For example, when setting

the output file is called mylib2.dll.

In order to remove the version number from the target name, then you can use the

TARGET_EXT [qt.nokia.com] variable. For instance, setting the output filename without the major version number on Windows can be done by setting it like this:

On Windows, you can alternatively create a
resource file [qt.nokia.com] and specify this as part of your application using:

Note that the version information will not be part of the target filename.