The Gurobi Optimizer v7.5 extends our tradition of providing significant performance enhancements with each new release. The overall performance improvements from v7.0 on models that take more than one second to solve include:
A number of MIQCP and QP models also saw improved results in v7.5. However, overall results on our MIQCP test set were down 8% and overall QP results were down 2%.
While we're seeing improvements on the vast majority of models in our test sets, results on your models may vary. We are happy to help you benchmark your models with Gurobi v7.5. Simply email us at firstname.lastname@example.org.
Our Python modeling interface has been extended to further simplify the task of translating mathematical models into efficient implementations. This version contains new, simplified syntax for specifying general constraints (min, max, abs, and, or, and indicator), and for range constraints. For more information, see the Python API Overview section in the Reference Manual.
Our multi-objective interface has been greatly simplified. You can now specify objectives through a single setObjectiveN routine. For an overview see the Multiple Objectives section in the Reference Manual.
Our new multi-objective environments feature allows you to set termination parameters for each pass of the multi-objective optimization algorithm separately. For an overview see the Multiple Objectives section in the Reference Manual.
We have tightened our internal tolerances for MIQP models to reduce the number of cases where the solution exhibits small constraint violations.
Our Java interface now includes a JavaDoc version of our documentation.
We've added support for Python 3.6 (including Anaconda 3.6) on Linux, Mac, and Windows, as well as support for R 3.4.
We've added support for Visual Studio 2017 on Windows.
With the release of 7.5, we've added support for two additional parameters:
With version 7.5, Gurobi continues to show its commitment to providing the best solvers, features, and support to help OR professionals succeed with optimization.
Current users of v7.0 or later will not need a new license to use Gurobi 7.5. If you are using a version of Gurobi older than v7.0, getting one is easy:
You may also be interested in viewing a list of enhancements from v4.0 to v7.0 on our Prior Versions page.