.. mode: -*- rst -*-

Software versions
=================

:Tag: design.mps.version
:Author: David Jones
:Date: 1998-08-19
:Status: incomplete document
:Revision: $Id: //info.ravenbrook.com/project/mps/version/1.113/design/version.txt#1 $
:Copyright: See `Copyright and License`_.
:Index terms:
   pair: software versions; design
   single: versions; design


Introduction
------------

_`.intro`: This is the design of the support in the MPS for
describing and inspecting versions.


Overview
--------

_`.overview`: There are three different sorts of version under
consideration:

#. versions of the (MPS) library used (linked with);

#. versions of the interface used (header files in C) when compiling
   the client's program; and

#. versions of the documentation used when the client was writing the
   program.

There are issues of programmatic and human access to these versions.

_`.overview.split`: The design is split accordingly. See
design.mps.version-library for the design of a system for
determining the version of the library one is using. And other
non-existent documents for the others.


Document History
----------------

- 1998-08-19 David Jones. Incomplete document.

- 2002-06-07 RB_ Converted from MMInfo database design document.

- 2013-03-11 GDR_ Converted to reStructuredText.

.. _RB: http://www.ravenbrook.com/consultants/rb/
.. _GDR: http://www.ravenbrook.com/consultants/gdr/


Copyright and License
---------------------

Copyright © 2013-2014 Ravenbrook Limited. All rights reserved.
<http://www.ravenbrook.com/>. This is an open source license. Contact
Ravenbrook for commercial licensing options.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

#. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

#. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

#. Redistributions in any form must be accompanied by information on how
   to obtain complete source code for this software and any
   accompanying software that uses this software.  The source code must
   either be included in the distribution or be available for no more than
   the cost of distribution plus a nominal fee, and must be freely
   redistributable under reasonable conditions.  For an executable file,
   complete source code means the source code for all modules it contains.
   It does not include source code for modules or files that typically
   accompany the major components of the operating system on which the
   executable file runs.

**This software is provided by the copyright holders and contributors
"as is" and any express or implied warranties, including, but not
limited to, the implied warranties of merchantability, fitness for a
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