Setting the version number for .NET Core projects

You can create a Directory.Build.props file in the root/parent folder of your projects and set the version information there.

However, now you can add a new property to every project in one step by defining it in a single file called Directory.Build.props in the root folder that contains your source. When MSBuild runs, Microsoft.Common.props searches your directory structure for the Directory.Build.props file (and Microsoft.Common.targets looks for Directory.Build.targets). If it finds one, it imports the property. Directory.Build.props is a user-defined file that provides customizations to projects under a directory.

For example:

<Project>
  <PropertyGroup>
    <Version>0.0.0.0</Version>
    <FileVersion>0.0.0.0</FileVersion>
    <InformationalVersion>0.0.0.0.myversion</InformationalVersion>
  </PropertyGroup>
</Project>