I find the Notifications format to be unhelpful. Each time I click on it in the App it uses the current time - eg at the moment it says “Your KoalaSafe was updated to version 1.26380” but shows the time I visited the page, and NOT the time of the update.
If my internet is playing up I check the Notifications, but have no way of knowing whether the update has just happened, or it could be several days ago.