title: Is there a universal config file for .Net Standard 2.0 Class Library?
body: <p>I have a Class Library that I'm converting to a .Net Standard 2 class library in order to also use in ASP.Net Core 2.0 projects.</p>
  
  <p>The library has always read from a config file items such as SMTP settings, connection strings etc.</p>
  
  <p>In Web Projects it finds these values in <strong>web.config</strong>.</p>
  
  <p>In Console/WinForms it finds these values in <strong>app.config</strong>.</p>
  
  <p><strong>Is there an equivalent config file for .Net Core 2.0 projects that "just works" like the previous examples?</strong>  </p>
  
  <p>I assume the answer is no, but looking for best way to handle this given the library is used across the organization, so maintaining backwards compatibility is important.</p>