Revised the Seymour decomposition structure.
Fixed a bug in the code for printing dot-files for transposed graphic/network matrices; reported by Christopher Hojny.
Added a timeLimit parameter to all potentially time intensive functions.
Bugfix for the timeLimit parameter.
Added generator for wheel matrices.
Added first enumerative code for recognition of balanced matrices.

Version 1.3

Redesigned as Combinatorial Matrix Recognition Library.
Added recognition of (co)graphic and (co)network matrices.
Added recognition of series-parallel matrices.
Moved all C++ code to internal implementation. The library interface is only in C.
Added generators for network, graphic and random matrices.

Version 1.2

1.2h (2019-09-27)

Bugfix in search for violating submatrix.
Added direct test for regularity of binary matroids.

1.2g (2019-08-15)

Added support for complement total unimodularity.

1.2f (2017-03-14)

Raise an error message if an integer overflow occurs during k-modularity check; reported by Filippo Quondam.

1.2e (2016-02-28)

Bugfix for violator search; reported by Bala Krishnamoorthy.

1.2d (2015-02-06)

Bugfix for memory bug; reported by Tobias Windisch.

1.2c (2014-05-08)

Compatibility fix for more recent boost library; fix by Volker Braun.

1.2b (2012-10-12)

Compatibility fix for Mac OS; reported by Yvon Sauvagneau.

1.2 (2012-04-13)

Official version for article Implementation of a unimodularity test by Matthias Walter and Klaus Truemper (Mathematical Programming Computation, 2013).
Polymake users can now analyze the matroid decomposition.

Version 1.1 (2012-02-09)

Bug in graphicness test. Older versions may produce wrong results; reported by Paulo Seijas.
Update for polymake version 2.11 by Marc Pfetsch.

Version 1.0 (2011-06-13)

First release of the software.

TUtest Library

This library is the successor of the TUtest library, originally developed by Matthias Walter and Klaus Truemper for the recognition of totally unimodular matrices. The new name and additional functionality are available since version 1.3.