Changes 4.28:

The iODBC and MySQL table drivers, which allows transmitting
data between MathProg model objects and relational databases,
were re-implemented to replace a static linking by a dynamic
linking to corresponding shared libraries.
Many thanks to Heinrich Schuchardt <heinrich.schuchardt@gmx.de>
for the contribution, Rafael Laboissiere <rafael@debian.org>
for useful advices concerning the shared library support under
GNU/Linux, and Vijay Patil <vijay.patil@gmail.com> for testing
this feature under Windows XP.

A new optional feature was added to the package. This feature
is based on the zlib data compression library and allows GLPK
API routines and the stand-alone solver to read and write
compressed data files performing compression/decompression "on
the fly" (compressed data files are recognized by suffix `.gz'
in the file name). It may be useful in case of large MPS files
to save the disk space (up to ten times).

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