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