In Tor 0.3.5.x: ``` app/config/confparse.c: log_warn(LD_CONFIG, "Skipping obsolete configuration option '%s'", c->key); ``` But in 0.4.2.3-alpha: ``` lib/confmgt/type_defs.c: log_warn(LD_GENERAL, "Skipping obsolete configuration option."); ``` Resulting in log messages like: ``` Oct 25 16:19:28.906 [warn] Skipping obsolete configuration option. Oct 25 16:19:28.906 [warn] Skipping obsolete configuration option. ``` which are not as helpful as they could be. The bug went in with commit c60a85d2, which I think first went into 0.4.2.1-alpha. The new file has a XXXX next to this line: ``` // XXXX move this to a higher level, once such a level exists. log_warn(LD_GENERAL, "Skipping obsolete configuration option."); ``` but I see that most tickets like legacy/trac#29211 and legacy/trac#30866 are scheduled for 0.4.3.x, and this is an 0.4.2 bug so I am filing a separate ticket. Bug reported by OFFShare in irc.