Changelog

0.4.1

Support writing solution files in HiGHS
Pass the names of variables and constraints to HiGHS
Add model.close() and env.close() methods to allow users release the license of commercial solvers manually

0.4.0

Add model.add_m_variables and model.add_m_linear_constraints matrix modeling API
Add model.computeIIS and IIS related attributes for constraint and variable
Implement constraint based on compare operators, now you can use model.add_linear_constraint(x + y <= 1.0) directly
Drop support for Python 3.8
Add wheels for Linux ARM64
Supports HiGHS 1.9.0 and Mosek 11

0.3.0

Add model.set_variable_bounds(variable, lb, ub) to make it easier to change variable bounds
Introduce nonlinear programming support of Ipopt
Support new versions of optimizers
Various minor bug fixes

0.2.8

Fix bugs in HiGHS and MOSEK when the quadratic objective function contains nondiagonal terms

0.2.7

Fix bugs in HiGHS termination status

0.2.6

Add rotated second-order cone support for COPT, Gurobi and Mosek
Add exponential cone support for COPT and Mosek
Requires COPT version >= 7.1.4 to support exponential cone

0.2.5

Fix add_linear_constraint of HiGHS optimizer to consider the constant term in expression correctly
Make make_tupledict slightly faster

0.2.4

Add map method for tupledict class
Add type stubs for C++ extension modules

0.2.3

Fix a bug when deleting constraint in HiGHS

0.2.2

Fix the performance issue with HiGHS optimizer

0.2.1

Fix the DLL search paths on Windows

0.2.0

Supports callback for Gurobi and COPT
Release GIL when calling model.optimize()

0.1.1

Add Model.write method to write model to files

0.1.0

First release on PyPI