title: SVN: Prevent a newer client from upgrading a working copy's SVN version?
body: <p>Is it possible to prevent a newer SVN client (say 1.6) from automatically upgrading a working copy that was checked out with an older client (say 1.4 or 1.5)?</p>
  
  <p>I find that as soon as I touch a working copy with a newer client, anyone using an older client to work with the same files can no longer do so (for obvious reasons).</p>
  
  <p>Assuming requiring everyone to upgrade their SVN clients isn't an option, is there a configuration setting or flag I can set to prevent my newer client from making this change?</p>