Technical-information letters and memoranda are short documents that announce new technical information, such as a software bug and its solution, or a new feature. Use the memorandum format if the information is being sent inside an organization. Use the letter format if the document will be sent to outside individuals.
The following example is adapted from a technical-information memorandum written by Information Systems at the Massachusetts Institute of Technology. The document informs users of MIT's Athena network of a change in the protocols of MIT's main World Wide Web (WWW) server that allows users to place shorter Uniform Resource Locators (URLs) in their WWW pages.