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Update

Definition(s):

  A patch, upgrade, or other modification to code that corrects security and/or functionality problems in software.
Source(s):
NIST SP 800-213
NISTIR 8259A
NISTIR 8259B from IoT Device Security Baseline Capabilities

  New, 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. The software publisher often provides updates free of charge.
Source(s):
NIST SP 1800-15B from Computer Hope

  New, improved, or fixed software, which replaces older versions of the same software. For example, updating an OS 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.
Source(s):
NIST SP 1800-15C from Computer Hope