phpbb/phpbb — pull request #2503 by prototech (2014-05-27 16:29:54+00:00)
Title: [ticket/12603] Remove hook system documentation.

The code for hooks still exists in Ascraeus for compatibility reasons, however,
it is no longer recommended that they be used. The events system should be
used instead.

https://tracker.phpbb.com/browse/PHPBB3-12603