Echo display these messages since the last MW release:
However, these messages are not translated, and, for French, [[https://translatewiki.net/w/i.php?title=Special:Translate&group=ext-flow&language=fr&filter=%21translated&action=translate | not marked as missing]].
I've changed language on wiki and tested it to display English, Spanish, Breton and French. Only English is available. Something is missing concerning translations?