Something I've experienced multiple times with the Tesla app:
When you go to the iPhone App Store, and search for Tesla app to see if it needs updating, it just says "OPEN", which is misleading because you think that means you already have the latest version. You have to actually tap the Tesla icon to go into the details about the app (where you see the ratings, reviews, preview, etc.) and there you will see "UPDATE". Usually, when searching in the App Store, if you have an out of date app it will say "UPDATE" and if it is the current app it will say "OPEN". But for some reason Tesla says "OPEN" when you have an old version, and you have to go into the details to see the "UPDATE" option to update the app.