This is the 3095th most frequent Portuguese word.
atualizado
Updated.
Here, 'atualizado' is used as a past participle to indicate a state of being informed or current on a topic.
Eu estou atualizado sobre as últimas notícias.
I am up-to-date with the latest news.
In this sentence, 'atualizou' is the third person singular past tense of the verb 'atualizar', meaning to bring something to a current or latest state.
Ele atualizou o sistema para a versão mais recente.
He updated the system to the latest version.
Here, 'atualizados' is used in the past participle form as an adjective to describe the data requiring refreshing or modernizing.