The current release is of the project according to CMakeLists.txt is 1.0.5, but the ZXingWinRT.nuspec still shows as version 1.0.3
The impact here is that when generating a nuget package the wrong version number code will be used.
Depending on when and how this is being published to nuget.org, it may also result in failing to deploy the latest version of the library unless there's a manual step taken to update it before publishing.