version dates confuse me after upgrade

[Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk>]

I just upgraded following the instructions on the wiki, and wanted to
check that it went well and that the newer ones were being found --
always a nightmare subject in *TeX* with paths configurable by a
combination of environment variables, config files, and config files
chosen by other env variables.  So:

$ texexec --version

 TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005

               texexec : TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005
               texutil : TeXUtil 9.0.1 - ConTeXt / PRAGMA ADE 1992-2006
                   tex : pdfeTeX, 3.141592-1.21a-2.2 (Web2C 7.5.4)
               context : ver: 2006.03.25 13:21
               cont-en : ver: 2005.01.31  fmt: 2006.3.28  mes: english

Here is the version line in the output of 'texexec somerandomfile.tex':

  ConTeXt  ver: 2006.03.25 13:21  fmt: 2006.4.6  int: english  mes: english

The context version date match what texexec --version produces (though
texexec doesn't give the fmt date).  But what does the early cont-en
version date (2005.01.31) mean?

-Sanjoy

`A society of sheep must in time beget a government of wolves.'
   - Bertrand de Jouvenal