... About Trac . ... The Trac Configuration File . ... In versions prior to 0.11, the global configuration was by default located in $prefix/share/trac/conf/trac.ini or /etc/trac/trac.ini, depending on the distribution. ... Literally, when you're upgrading to 0.11, you have to add an [inherit] section to your project's trac.ini file. ... Multiple files can be specified using a comma-separated list. ... Ordered list of workflow controllers to use for ticket actions ( since 0.11 ). abbreviated_messages . ...