Hello Pier–nice to see you again. 🙂
Good question. You can find a list of all available translations in this guide. It looks like Italian is current up to version 3.7, so I imagine there may be some strings here and there that need to be updated. You’re welcome to use that as a starting point and post updated translations to our Translations forum. If you contribute to the language and it gets committed to the plugin, we do offer free licenses in return.
Does this help answer your question? Please let me know.
Cheers!
Geoff