title: Supported runtime v4.0 in app.config after upgrading VS11 Beta to VS2012 RC
body: <p>After upgrading from VS11 Beta to VS2012 RC - I've modified from targeting .NET 4.0 to .NET 4.5. I notice in app.config following section</p>
  
  <pre><code>&lt;startup&gt;
      &lt;supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" /&gt;
  &lt;/startup&gt;
  </code></pre>
  
  <p>What is the above for?</p>
  
  <p>When I tried to create a new project (not upgrade of existing project) from within VS2012 RC I don't see the above section in app.config</p>