From: Peter Biereichel
                                                           Date: 10 Nov 1999


             VLT-SW-OCT99 - RELEASE NOTES FOR RTD and CAT
             ============================================

   Changes (with respect to FEB1999):

     - the environment variable DFLOW_ROOT is set to $VLTROOT by
       the standard environment. rtd and cat are now integrated 
       into the $VLTROOT directory.
       IMPORTANT: 
       It is necessary to change the Makefile of the application
       using rtd or cat, if references to /vlt/dflow were made instead
       of $DFLOW_ROOT.

     - the two master shared libraries librtd.s* and libcat.s* as
       well as the include directories are automatically searched by the
       VLT Makefile.

     - Changes in source configuration: Rtd previously contained a lot of
       generic code that was not Rtd specific. In order to make simplify
       the Rtd package and make the generic code available for other
       applications, the following 2 new packages were added:

       The Tclutil package was created by gathering "generic" Tcl and C++
       code from various applications into a single generic Tcl package.

       The Astrotcl package was created by gathering general astronomy
       related Tcl and C++ code from other packages into a single, reusable
       package.


  New Features (with respect to FEB1999):

     - Added image extensions to Rtd

     - Added new rtdimage subcommand 'biasimage' and widget 'RtdImageBias'
       for on-the-fly bias image subtraction. The widget can be called from
       the file menu.

     - Added wcsFlags in rtdImageEvent.h and wcsdeltset subcommand. This
       allows to flip the Ra/Dec display when required.

     - Added program options: -attach, -rtd_geometry and -rtd_title

     - Added socket option TCP_NODELAY for faster image updates on HP-UX.

     A complete description of new features and changes is contained
     in the CHANGES files of the packages rtd/cat/tclutil/astrotcl.

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