Xpress Update 8.4.6

Document created by Michael.Perr on Feb 26, 2018
Version 1Show Document
  • View in full screen mode

Xpress Update 8.4.6 is now available on Box.com for Windows, Linux and Mac, from

 

           https://fico.box.com/v/xpress-8-4-6

 

This is the latest update for the Xpress 8.4 release branch. Please note that it must be installed over a prior installation of FICO Xpress 8.4 and requires a valid Xpress 8.4 license.

 

Release Notes:

 

Xpress Optimizer 32.01.09:

 

  • Fixed an issue in the dot product implementation of the Python interface.
  • Fixed handling of range constraints in the Python interface.
  • Fixed an internal issue related to XPRSloadlpsol.
  • Fixed an issue related to XPRScrossoverlpsol.
  • New string attribute 'XPRS_XPRESSVERSION' indicating the Xpress version ("8.4.6" for this patch)
  • Fixed a problem related to XPRS_CALLBACKFROMMASTERTHREAD when XPRS_THREADS is set to 1 and XPRS_MIPTHREADS is set to a positive number.
  • Fixed an issue that could cause the time limit for positive values of MAXTIME to be ignored in multi-threaded MIP solves.
  • Fixed an issue that prevented user solutions from being processed when HEURSTRATEGY=1.
  • Fixed an issue with presolve probing for MIPs that could result in a crash.
  • Shifting of integer variables during presolve will now be disabled when bit 10 of PRESOLVEOPS is set.

 

Xpress Workbench 2.1.6:

 

  • Fixed error when opening projects stored on a drive other than C:
  • Fixed issue where Mosel output contains unexpected symbols on Windows 7
  • Fixed another issue where Mosel appears to hang and display no output when running a model

 

Xpress Licensing 2.9.2:

 

  • Fixed a bug triggered by network adapter prefixes of 15 characters or longer.

Attachments

    Outcomes