Yes, they are for your flight. We alert you with the new flight info as soon as we receive it from the airline.
For example, if three days prior departure we get a notice that the departure gate has changed, we will notify you.
Such updates, if they happen 24+ hours before your flight, would come in silent mode (by just appearing on the app's screen).
If you doubt that alerts are for your flight, let us know via feedback option in the app's settings.