This release (March 1993) has the following changes:

 * Ability to read .linecolors file. (See data example.)
 * Ability to read .erase file.
 * Ability to write out the data file (See Options menu.)
   Useful for saving transformed or sphered data.
 * Case profile plotting. (See Identify control panel.)
   Especially useful for panel data; write to dfs@bellcore.com
   for more information and documentation.
 * Speedups to brushing that make it possible to brush
   many thousands of points. (Thanks for Werner Stuetzle for
   suggestions.)
 * Speedups to identification, again to better handle big
   data sets.
 * Bug fix to S command that enables it once again to accept
   the output of an S command as data input.
 * More glyph types. (See Glyph menu on Brush control panel.)
   This may make old .glyph files no longer suitable; sorry.
 * Data-specific resource files. (See Options menu.)
 * Ability to subset data in three different ways. (See
   Options menu.)  The default method allows you to choose
   a random sample of your data w/o replacement.
 * Beginning to add keyboard controls:  most of the
   buttons in the main panel can now be activated from
   the keyboard.  D or d = Dotplot, X or x = XYPlot, ...
   up through O or o = Options.

 Many extensions to touring (See Tour control panel.)
 See help files for basic information and write to
 dcook@stat.rutgers.edu for more information and documentation.

 * Linked touring. (See Options menu as well as Tour control panel.)
   Useful to compare related data sets or for cross validation.
 * Section tour
 * A menu of interpolation methods is available.
 * Several new projection pursuit indices have been added.
   (See the PP Index menu.)
 * Notations in the code in tour_pp.c tell an adventurous
   user how to add a new projection pursuit index.
 * A set of methods to tailor and interact with the projection
   pursuit window has been added.  (They're on the left side of
   the projection pursuit window.)  In particular, you might
   want to read the help files for 'Return to Bitmp' and 'Record
   Bitmap' if you use the projection pursuit guided tour.

 In the template directory, you will find a heavily commented
 example of the use of XGobi as a function.  This hasn't yet
 been used by anyone, so it's quite rough, but it should be
 a reasonable start.  Please tell us about your experiences
 with these files.

The February 1992 release had these changes:

 * textured dot plotting
 * dotplot cycling
 * an interactive line editing mode
 * ability to read .lines file specifying connected lines
 * line brushing -- by color but not yet by line type; not yet linked
 * a first attempt to allow the plot window to be printed
 * the ability to "delete" and "restore" erased points in brushing
 * an option for maintaining variable continuity between plotting modes

The October 1991 release was re-implemented using the Athena widgets,
written and maintained by the MIT X Consortium, rather than the HP
widgets, which are no longer supported.  It made use of a feature
called 'fallback resources' which make the default resource file
unnecessary -- in fact, the old resource file will inhibit the best
layout, so it should be moved or removed.  In addition, the
partitioning of space among the plot window and the variable selection
panel can now be adjusted interactively.
