Hello, as I can See Sphinx 3.0.1 released on Dec 18, 2017. (http://sphinxsearch.com/blog/2017/12/18/sphinx-3-0-1-released/) Why Debian is still use 2.2.11 ? (https://metadata.ftp-master.debian.org/changelogs//main/s/sphinxsearch/sphinxsearch_2.2.11-2_changelog) Best Regards