title: Programming in Scala 2nd edition deprecated concepts
body: <p>I am reading <em>Programming in Scala 2nd edition</em> which is based on Scala 2.8</p>
  
  <p>I have read on Scala release notes that many concepts like Actors that are explained in the above book have been phased out.</p>
  
  <p>Can you suggest which chapters I can skip from that book and read from other sources?</p>
  
  <p>Edit 1: I have checked the change log which gave me good idea of new features which have been added.</p>
  
  <p>Any good resources for learning </p>
  
  <ul>
  <li>Akka Actors</li>
  <li>Parrallel collections</li>
  <li>Macros</li>
  </ul>