CHANGELOG.rst
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Next Release
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1.8.2
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* fix the feasibility check in the hybrid solver
1.8.1
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* update versioneer to support newer Python versions
1.8.0
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* add a generic matrix interface to allow easy addition of new solvers
that expect an immutable problem in standard form as input
* replace the OSQP interface with a hybrid interface that uses HIGHS for (MI)LPs and
OSQP for QPs
* `osqp_interface` is now deprecated, will import the hybrid interface when used, and
will be removed entirely soon
1.7.0
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* remove deprecated numpy type casts
* The symbolics module now has consistent exports
* When sympy is used the internal Symbol class now derives from sympy.core.Dummy. This
circumvents the hack in place to make Symbols unique and makes optlang work with
sympy>=1.12 again.
* Updated the scipy and the jsonschema tests to work with newer versions of those packages.
* Package version dependencies are now more specific.
* Tests are run for sympy and symengine now.
* Updated support Python versions to >=3.8.
1.6.1
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* fix the Gurobi version check to allow 10.0
1.6.0
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* fixes problem scaling for GLPK
* fixes scaling output in GLPK that could not be turned off
* Major performance improvements in the Gurobi interface when getting primals,
shadow prices and reduced costs
* Now only supports gurobipy>=9.5
* Tests are now run with the Gurobi and CPLEX community editions
* Drop support for Python 2 and add support for Python 3.10
1.5.2
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* Gurobi can now serialize its configuration correctly. This also fixes pickling of Gurobi models.
* Fix the shim for integrality tolerance in OSQP which makes it easier to clone OSQP Models to other solvers.
* Fix an issue where one could not rename variables in Gurobi version 9.
1.5.1
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* GLPK now respects `Configuration.tolerances.integrality` again
1.5.0
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* removed support for Python 3.5
* added support for Python 3.9
* enabled code coverage in tox
* support symengine 0.7.0
* add [OSQP](https://github.com/oxfordcontrol/osqp) as additional solver
* add [cbc](https://github.com/coin-or/python-mip) as additional solver
1.4.7
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* fix: except AttributeError when setting tolerance on cloned Configuration
* enable cloning models between solver interfaces that do not support the same set of tolerance parameters