title: What's the difference between RyuJIT and Roslyn?
body: <p>I understand that RyuJIT is a quicker compiler than JIT. But is it the new standard for the .NET 4.6 or is that Roslyn?</p>
  
  <p>Or is it that Roslyn is used when you need to expose APIs  during the compilation process? </p>
  
  <p>I'm confused between their purposes and what frameworks they'll be found in. Can someone explain the difference &amp; when you want one over the other, please?</p>