Old habits die hard. All the same, there are commands, classes and packages which are outdated and superseded. The nag package provides routines to warn the user about the use of such obsolete things. As an example, we provide an extension that detects many of the “sins” described in l2tabu.

The author is Ulrich M. Schwarz. The package is Copyright © 2005-2008 Ulrich M. Schwarz.