v6.4 (2017-09)

Change in platforms

• Pypi modules on Linux platforms are now delivered as wheel files using the manylinux1 tag. Thanks to Federico Ficarelli. With this change, we have backtracked the per-linux modules introduced in the July 2017 release.

New features

• Improved scaling method used inside GLOP.
• Fix wrapping of evaluators in the C# routing library. Thanks to DevNamedZed.
• Improve the performance of the flatzinc presolve for large models.
• Use the SAT backed for flatzinc by default.
• Improve performance of the Core based approach for the sat solver.
• Fix bug in the linear assignment algorithm that was failing incorrectly.
• Added F# examples in ortools/examples/fsharp. (Thanks to Matthew Moore).
• Remove check for positive penalties in the routing library.