AssemblyInformationalVersion is the ideal one. Anything else is gravy. This is what I set in Contract Configurator: [assembly: AssemblyVersion("1.0")] [assembly: AssemblyFileVersion("1.7.2")] [assembly: AssemblyInformationalVersion("1.7.2")] [assembly: KSPAssembly("ContractConfigurator", 1, 0)]