{Building \TeX\ Live} {Karl Berry} {An overview of how \TeX\ Live is constructed and updated, both so-called packages and programs. Here, packages contain only material which is interpreted, such as \LaTeX\ add-ons, fonts, and scripts; these are updated throughout the year, as updates are released to \CTAN. In contrast, programs are compiled binaries and are, almost always, updated only for the annual release.}