It's missed the possibility for the user to swith from language to language for example if the ticket sistem is at default language italian let the user select in top right or somewhere english language so use the ticket system in english.
This feature has been mentioned as coming more times than i can count both on the forums, and on the official blog, and release notes.see also: https://github.com/osTicket/osTicket-1.8/releases/tag/v1.9.4-dpr