Blog Post

FICO® Xpress Optimization Blog
2 MIN READ

Xpress Updates 9.2.3

FICO's avatar
FICO
Community Manager
3 years ago
Xpress Updates 9.2.3 is now available for Windows, MacOS, Linux on x86-64 and Linux on AArch64, Click here to download.

These are the latest updates for the Xpress 9.2 release branch and requires a matching license. Please note that these archives must be extracted over a prior installation of FICO Xpress 9.2. This update requires an Xpress 9.2 license.

Release Notes for 9.2.3

Xpress Optimizer 42.01.02
  • Fixed an issue with presolving of partially defined user solutions
  • Fixed a memory leak on Windows when solving MIPs.
  • Fixed a small issue in the mod2 presolver module potentially leading to wrong optimal solutions.
  • a potential crash when parsing floating point numbers
  • Fixed a bug when XPRSchgobjn is used to modify existing objective coefficients
  • Fixed a bug related to scaling in IIS.

Xpress Nonlinear 42.01.02
  • Fixed an issue with nonlinear indicators with exactly one linear nonzero.

Xpress Global 42.01.02
  • Fixed an issue in presolve for problems with both convex quadratics/SOCPs and non-convex quadratics or general nonlinearities

Xpress Interfaces 42.01.02 (Python, R, Matlab, .NET, Java)
  • Fixed an issue where an error message was displayed when problem.getSolution was called from a Python callback
  • Fixed an issue where the Python interface advised the user to pass a path to xpress.init when the path was already being passed

Xpress Mosel 6.4.2

Compiler Library
  • Valid redefinitions of types are no longer rejected.
Runtime Library
  • An issue has been fixed in the bim loader (it could cause a runtime error E-1004 under certain conditions).
mmsystem 2.12.4
  • Posix: 'getsysstat' now returns a negative value when the process run via 'system' has terminated because of a signal.
  • 'sysinfo' can now also report the PID of the process running the instance (tag SYS_PID).
mmxprs 4.2.1
  • 'getvar(logctr)' can now be used to retrieve the variable of an indicator constraint.
  • representing indicators now support names generation.
mmnl 2.6.2
  • A potential memory leak has been fixed when 'setname(nlctr)' is used.
mmxnlp 34.5.1
  • An issue has been fixed in the generation of names of nonlinear constraints
Updated 3 years ago
Version 3.0
No CommentsBe the first to comment