title: Under automatic reference counting, why are retain, release, and dealloc not allowed?
body: <p>When trying to use <code>-retain</code>, <code>-release</code>, and <code>-dealloc</code> while building my application using automatic reference counting in Xcode 4.2, I get an error like the following:</p>
  
  <blockquote>
    <p>Automatic Reference Counting forbids
    explicit message send of 'dealloc'</p>
  </blockquote>
  
  <p>Why am I seeing this error?  Are <code>-retain</code>, <code>-release</code>, and <code>-dealloc</code> no longer allowed under automatic reference counting?</p>