This event is signalled by dbg_deprecated() in inc/infoutils.php when this method is called(usually in a deprecated method), handlers can use it to log that error, for example in an external error monitoring tool.

The following data is available

• backtrace: A backtrace created by debug_backtrace(), adjusted to remove the debug functions themselves
• alternative: (optional) A developer-provided string describing what should be used instead
• called: a string describing what is deprecated
• caller: a string describing where the deprecated thing was called
• file: a string describing in which file the deprecated thing was called
• line: the line number where the deprecated thing was called

• Code related to this event used in any DokuWiki files, plugins and templates
• Action Plugins
• Events
• The Sentry plugin uses this event