title: Should I upgrade to PHP 5.3?
body: <p>PHP version 5.3 has been released, and although it looks great, all my code already works fine. I don't see what this new version offers to justify upgrading and working through possible issues after the upgrade.</p>
  
  <p>Should I upgrade anyway just for good practice, or is an upgrade not needed unless I am actually using the new features?</p>