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FICO® Xpress Optimization Blog
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Xpress Solver 9.7 – July 2025

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FICO
Community Manager
1 year ago
Xpress Solveris the technology component that supports all of FICO's optimization solver technologies including:
  • Xpress Optimizer: core engine comprises of LP (simplex and barrier), MIP, (MI)QP, (MI)QCQP, and (MI)SOCP solvers. It also provides core services, like the tuner, to other components.
  • Xpress Nonlinear: provides successive linear programming and an interior point solver for nonlinear problems, integrating closely with the Optimizer’s MIP framework.
  • Xpress Global: provides an engine for solving nonlinear problems to global optimality integrating with the components of Xpress Nonlinear and Xpress Optimizer.
  • Xpress Kalis: provides constraint-based programming capabilities. Combined with the optimizer, it can make use of MIP relaxations of the CP problem.
Highlights of this release include:
  • FICO Xpress 9.7 is available as part of Docker images on Docker Hub. Users are requested to read the licensing terms.
    • Python users are recommended to use this image.
    • For other Xpress APIs, users can get started from this image.
  • Improved Windows installers including a new option to install Xpress in an automated manner on Windows via the command line in silent headless mode.
For further information please, see details listed in the Xpress release notes .
Updated 1 year ago
Version 3.0
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