Hi,

starting with Sphinx 2.2.2-beta the used but deprecated "sql_query_info" in the sphinx.conf:

https://github.com/phpbb/phpbb/blob/develop/phpBB/docs/sphinx.sample.conf#L32

was removed according to the Changelog of Sphinx:

http://sphinxsearch.com/docs/current.html#rel222

This leads to a message that SQL_QUERY_INFO was permanently removed when trying to use this config with the latest stable Sphinx 2.2.4