The current client version can be determined by reading the .Net Assembly Version of the host application. This value is set by the .Net framework [assembly: AssemblyVersion] attribute. To use the host assembly version, set the Update Controller UseHostAssemblyVersion property to true. When using the host assembly version, the Update Controller Version property is ignored.
Synchronizing the Update package version with a file
To automatically set the update version while building new updates, you can link the update version of newly created update packages to a file on your build system. When linked, the update version of new updates is automatically assigned to the assembly version or file version of the designated local file.