Directory.Build.props

<Project>

  <PropertyGroup>
    <!--
      Single source of truth for every packable Devity.* project's version. CI computes one
      timestamp per publish run and passes it to every project via -p:PackageVersion=..., so
      packages that reference each other via ProjectReference (e.g. Devity.Mailing ->
      Devity.Extensions) always bake in a dependency version that's actually being published in
      that same run. Without this, each project independently evaluating DateTime.Now produced
      slightly different timestamps across separate CI jobs, so a downstream package could require
      a version of its dependency that was never published.

      Local `dotnet build`/`dotnet pack` without the override still falls back to the current
      timestamp, same as before.
    -->
    <PackageVersion Condition="'$(PackageVersion)' == ''">$([System.DateTime]::Now.ToString("yyyy.MM.dd.HHmm"))</PackageVersion>
    <AssemblyVersion>$(PackageVersion)</AssemblyVersion>
  </PropertyGroup>

</Project>