title: What do the various "Update Depth" options in TortoiseSVN mean?
body: <p>We have a large SVN tree, which includes folders which have branches. For each project in the tree I work on, I used to have a separate check out for each branch, as well as one for trunk.</p>
  
  <p>What I'm trying to switch to now, is a single checkout, but with a selective set of folders. I would do this by using the "Update to revision" option, along with "Update Depth" set to "Working copy", and using "Choose items..." to select the folders I wanted. I would then also check "Make depth sticky".</p>
  
  <p>The issue I have is that I can't quite figure out how to tell SVN that I no longer need a particular folder (for instance a branch that is now in production).</p>
  
  <p>I'm trying to understand the "Update to revision" dialog better to see if I'm missing something, and I realized that I don't quite understand what all the options under "Update Depth" mean. I looked though the TortoiseSVN site, and haven't found any good detail.</p>
  
  <p>Can someone explain the differences between the following options under "Update Depth":</p>
  
  <ul>
  <li>Working copy</li>
  <li>Fully recursive</li>
  <li>Immediate children, including folder</li>
  <li>Only file children</li>
  <li>Only this item</li>
  <li>Exclude</li>
  </ul>
  
  <p>I think I understand "Immediate children", "Only file children", and "Only this item". But I'm not sure what the difference is between "Working copy", "Fully recursive" and "Exclude" is.</p>