
 Changes between tree-3.6 and tree-3.6.2
-------------------------------------

- reorganized C++ class hierarchy to use TclCommand and TkWidget classes
  (The basic Tk tree interface has not changed, except that you can no longer
   abbrieviate subcommand names)

- removed dependence on the Interviews OS library

- added some #defines for Dos/Windows compatibility (Tk-Win)

- added [incr Tcl] interface and new demos using Itcl, TclX and BLT

- changed configure and Makefiles (copied BLT configuration and modified it)

- added new man pages


 Changes between tree-3.4 and tree-3.6
-------------------------------------

- minor bug fix in TkTree.cc (multiple definition
  of argc and argv from some C++ compilers)

- changed initialization of options_.layout to 0
  to avoid problems if Tk does a "free" on it

- updated this file (CHANGES)


 Changes between tree-3.3 and tree-3.4
-------------------------------------

- use configure to generate master.mk include Makefile

- Removed InterpStream class, which caused problems on HP

- removed util directory (no longer needed)

- (re) added dirtree2 demo


 Changes between te-3.2 and tree-3.3
-------------------------------------

- changed name from te-3.2 to tree-3.3 and left out everything not
  directly related to the tree widget

- fixed bug that occurred when tree node name contained blanks

- changed tree widget code that caused core dump on some archs
  (config values are now in a separate structure and not members of the class)

- added tcl utility routines for dealing wth trees: tree.tcl
  (I had done this using [incr tcl], but that wasn't available in time
   for Tk-3.3)

- simplified the demos
  (Dirtree is now just a simple demo, and not a full application. This
   should make it easier to understand)

- added a new tree subcommand: tree ancestors
   which returns a list of a tree nodes ancestors.

- various internal code changes, such as the use of C++ streams
  for executing tcl code (see TkTreeNode.cc. If someone knows a 
  better way to do this, I would be glad to hear about it).
