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Saying 10 updates behind is meaningless. What model do you have, what exact version are you on and what country/area are you in?
The car will say you are up to date if you are not in the group that is staged for roll out of the given update. Tesla does a staggered roll out, they don't update every car at once.
Did you try uninstalling the app on the phone and reinstalling it? Or if you have a second device, try logging in there to see if it’s just a glitch in the app.