How Well Do You Know English Slang?
1948, in reference to information, 1952 in reference to persons, from up + date (v.1). Related: Updated; updating. The noun is attested from 1967.
: Is this the update material?
: I'll give you a quick update (1967+)
To give, add, record, etc, the latest information: He updated me on a couple of gimmicks (1948+)