6.1 Markup for the Preamble 
- \release
    {ver}
- 
      Set the version number for the software described in the
      document.
    
- \setshortversion
    {sver}
- 
      Specify the ``short'' version number of the documented software
      to be sver.
    
Release 2.4.3, documentation updated on 29 March 2006.
 
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