name nag category Package shortdesc Detecting and warning about obsolete LaTeX commands longdesc Old habits die hard. All the same, there are commands, classes and longdesc packages which are outdated and superseded. nag provides routines longdesc to warn the user about the use of those. As an example, we provide longdesc an extension that detects many of the ``sins'' described in longdesc l2tabu. [description copied from TeX Catalogue]