Programmatically get current running version of dotnet core runtime

Since .NET Core 3.0, you can directly call improved API to get such information.

var netCoreVer = System.Environment.Version; // 3.0.0
var runtimeVer = System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription; // .NET Core 3.0.0-preview4.19113.15

Check out this issue

For a detailed description you can find the original article here: https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed

Along with the original github comment chain here: https://github.com/dotnet/BenchmarkDotNet/issues/448

public static string GetNetCoreVersion() {
  var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;
  var assemblyPath = assembly.CodeBase.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);
  int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");
  if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)
    return assemblyPath[netCoreAppIndex + 1];
  return null;
}