I've seen this occasionally: web.whatsapp.com asks for an explicit update, and often this has no correlation to the actual phone's app's version or update status.
Aren't web apps, by design, always serving the latest based on whatever is coming off of a server?Why is an older version of the web app being served here, and the user being requested to choose to update (or not)?
What would be a valid scenario for any other web app to do this?