Xpress update 8.1.5 is now available on Box.com for Windows, Linux and Mac from
Xpress-Optimizer 30.01.09 release notes:
* Fixed an issue with quadratic bound reduction that might trigger a crash.
Xpress-Nonlinear 30.01.09 release notes:
* Improved the numerical behaviour of quadratic problems.
This is the latest update for the Xpress 8.1 release branch. Please note that it must be installed over a prior installation of FICO Xpress 8.1 and requires a valid Xpress 8.1 license.