All-New Xpress 9.0 and CBC 2.10.7 drivers for AMPL

We are keeping more solvers up-to-date with the release of two more all-new drivers: Xpress 9.0 and CBC 2.10.7.

The new drivers provide extended modeling support through the automatic reformulations and linearizations performed by the MP interface. So far we had already ported to this new interface: Gurobi, COPT, and HiGHS. We are now porting Xpress and CBC.

Xpress 9.0 is a full solver update. Highlights are MIP performance improvements, multi-objective optimization and more. Learn more at: https://ampl.com/products/solvers/solvers-we-sell/xpress/

CBC 2.10.7 with the help provided by automatic reformulations and linearizations performed by the MP interface now has substantially enhanced support for most AMPL functionalities.

Also see our download portal for the latest version: portal.ampl.com