Subversion 1.7.0-alpha2, on Windows (using neon), but I believe it should reproduce on every platform.
1. svn-1.6.exe checkout http://svn.apache.org/repos/asf/subversion/trunk/notes/api-errata wc A wc\1.7 A wc\1.7\ra001.txt A wc\1.7\wc001.txt A wc\1.7\wc002.txt A wc\1.7\wc003.txt A wc\1.7\wc004.txt A wc\1.7\wc005.txt A wc\1.7\wc006.txt A wc\1.7\wc007.txt Checked out revision 1140141. 2. rd /q /s wc\1.7 3. svn-1.6.exe st wc ! 1.7 4. svn-1.7.exe upgrade wc Upgraded 'wc'. 5. svn-1.7.exe up wc Updating 'wc': svn: E235000: In file '..\..\..\subversion\libsvn_wc\update_editor.c' line 1563: assertion failed (a ction == svn_wc_conflict_action_edit || action == svn_wc_conflict_action_delete || action == svn_wc_ conflict_action_replace) This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. -- Ivan Zhakov