Update meaning : An advisement providing more up-to-date information than currently known. A change in information, a modification of existing or known data. An additional piece of information. An addition to existing information. A modification of something to a more recent, up-to-date version; (in software) a minor upgrade. A version of something which is newer than other versions. To bring (a thing) up to date. To bring (a person) up to date: to inform (a person) about recent developments.