When using a DAV write-through proxy the slave will be out-of-date w.r.t. the master immediately after a commit for a short period. During that period update in the committed working copy will fail because the committed parts are at a newer revision than the slave. Neon gives a more user-friendly error message than serf: $ svn up wc2 --config-option servers:global:http-library=serf Updating 'wc2': svn: E175002: REPORT request on '/slave/!svn/vcc/default' failed: 500 Internal Server Error $ svn up wc2 --config-option servers:global:http-library=neon Updating 'wc2': svn: E000000: A reported revision is higher than the current repository HEAD revision. Perhaps the repository is out of date with respect to the master repository?