title: Xcode ARC (automatic reference counting), "release is unavailable"
body: <p>For my first time using Xcode I was following a <a href="http://developer.apple.com/library/ios/#documentation/IDEs/Conceptual/xcode_quick_start/010-Tutorial_Using_Xcode_to_Write_Hello_World/hello_world_tutorial.html#//apple_ref/doc/uid/TP40010575-CH2-SW1" rel="noreferrer">tutorial</a> online.
  I did everything as the <a href="http://developer.apple.com/library/ios/#documentation/IDEs/Conceptual/xcode_quick_start/010-Tutorial_Using_Xcode_to_Write_Hello_World/hello_world_tutorial.html#//apple_ref/doc/uid/TP40010575-CH2-SW1" rel="noreferrer">tutorial</a> showed me, but I am afraid that it's too outdated.</p>
  
  <p>The error I encounter is:</p>
  
  <pre><code>[font_attributes release]; 
  </code></pre>
  
  <blockquote>
    <p>'release' is unavailable: not available in automatic reference counting mode</p>
    
    <p>ARC forbids explicit message send of 'release'</p>
  </blockquote>
  
  <p>My knowledge on Cocoa and Xcode is limited, but I still wish to expand my learning.</p>
  
  <p>How may I fix the <code>ARC</code> issue?</p>