oliverbastert@fico.com

Xpress-Optimizer and Xpress-SLP patch 28.01.09 for Xpress 7.9 is now available

Blog Post created by oliverbastert@fico.com Advocate on Nov 23, 2015

The Xpress-Optimizer and Xpress-SLP patch 28.01.09 for Xpress 7.9 is now available for Linux and Windows from here.

 

Xpress-Optimizer release notes:

 

* Fixed an issue with the XPRSgetdualray function that could return an incorrect ray.

* Improved sparse matrix ordering in the barrier algorithm on very large problems.

* Fixed an issue in presolve for symmetric problems.

* Fixed an issue related to heuristics that had the potential to cause a crash.

 

Xpress-SLP release notes:

 

* No changes since version 28.01.07.

 

This is the latest Xpress-Optimizer and Xpress-SLP patch for the Xpress 7.9 release branch. Please note that it must be installed over a prior installation of Xpress 7.9 and requires a valid Xpress 7.9 license.

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