An update is an
|“||[an a]utomatic or manual cryptographic process that irreversibly modifies the state of a COMSEC key.||”|
|“||[t]he act or process by which data items bound in an existing public key certificate, especially authorizations granted to the subject, are changed by issuing a new certificate.||”|
To update means to bring current.
An update is
|“||[n]ew, improved, or fixed software, which replaces older versions of the same software. For example, updating an operating system brings it up-to-date with the latest drivers, system utilities, and security software. Updates are often provided by the software publisher free of charge.||”|
"On the other hand, there is a nontrivial chance that updates will diminish existing and needed functionality, and people are sometimes reluctant to apply updates because they are reluctant to instigate system instability. Thus, the trustworthiness of the updates themselves, as well as the updating process, becomes an issue of concern."