[[[ % wc-format.py .: 11 % svn --version -q 1.5.1 % svn st -q % echo 11 > .svn/format % echo 11 > .svn/entries % svn st -q svn: This client is too old to work with working copy '.'. You need to get a newer Subversion client, or to downgrade this working copy. See http://subversion.tigris.org/faq.html#working-copy-format-change for details. zsh: exit 1 svn st -q % ]]]
So, RFC: * wc-ng working copies shall contain an "entries" file (and/or a "format" file) containing the text "11\n", inside all .svn folders they have (if any).