2 Major changesΒΆ

Major changes from version 8.0:

Platform support

  • An AMPL shell for Windows 32 bit is no longer supported.
  • Python 3.4 is no longer supported.


  • Performance of the presolve has been improved slightly.

The conic optimizer

  • Multi thread performance has been improved for certain large models.
  • Changed scaling for quadratic and quadratically optimization problems.


  • The performance of Fusion has been improved particularly for the Python version.
  • C++ Fusion is enabled for 64 bit Windows.


  • Improved documentation and clearer API reference, especially for the Optimizer APIs and Fusion.
  • Improved installation and licensing manual.