You can specify both filenames and directories on the command
line. If you specify a directory, it watches all the files in that
directory. It will notice when new files are created (and start
watching them) or when old files are deleted (and stop watching
them).
The version 2.1 release fixes a Y2K bug, replaces the fixed-length
file list with a dynamically allocated one, and implements package
configuration with GNU autoconf.
Version 2.1 (05-Jun-2000) - Current release.