Up to date means including the most recent information. Keep the records up to date, an up to date map.
It says nothing about being correct, only about being current. Bringing somebody up to date is telling them what has happened since they last knew.
1phraseup to dateIncluding the most recent information.
“The list was up to date as of that morning.”
up to date is a phrase.
Also accepted in games: up-to-date
Practised in Time & Calendar