New release R20230622



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Release with new and improved solver support, and some minor fixes.

Main fixes and additions

  • Added support for COPT, thanks to the LEAVES group, RIIS at Shanghai University of Finance and Economics
  • Updated support for KNITRO 13.2
  • Updated support for XPRESS 9.0
  • KKT now supports nonlinearly parameterized models
  • Massive performance improvement on large sparse polynomial objectives in nonlinear solvers due to faster gradient computation
  • Fixed bug which caused gradient information to be incorrect when EXPCONE models are solved with general nonlinear solvers
  • The options bnb.plot and bmibnb.plot now mean the same thing (graphical view of lower/upper bound and stack information)
  • Some minor issues which caused issues when upgrading from 2021-verion