Receiving a new language update for a course does not make sense.
Users have no choice in this matter—if they don't update the course, it won’t work because we do not support multiple languages for a single course.
For live courses, if the teacher changes the language, users have no choice but to accept it since it's happening in real time.
Even for on-demand courses, allowing language changes wouldn’t make sense because currently, we cannot modify the content of a published lecture. Teachers can only add more lectures in a new language, which is not a good UX.
It would be better to prevent teachers from changing the course language after publishing.