v2.0.0

New name!

The library has been renamed to cvxpy-translation! This was to reflect that we are now able to translate problems into SCIP models in addition to Gurobi models.

New interface: SCIP

Problems can be translated to pyscipopt.Model instances. The feature set is on par with Gurobi.

Breaking changes

• The top-level functions solve, build_model and register_translation_solver now require a solver argument that must be the solver name from CVXPY. The previous functions for Gurobi are still available by importing from cvxpy_translation.gurobi.
• Exceptions are now split between general exceptions defined in the top-level cvxpy_translation, and solver specific exceptions available from the solver submodules, cvxpy_translation.gurobi and cvxpy_translation.scip.
• Unhandled attributes set on Variable and Parameter will now raise an error instead of being silently ignored (#185, #190)
• Support for EOL Python 3.8 has been dropped (#179).

New features

• Support variable bounds (#184)
• Support CVXPY 1.7 (#165)
• Add support for cp.conj which is used by cp.quad_form in CVXPY 1.7 (#165)

Bug fixes

• Scalar quadratic forms were incorrectly handled in CVXPY versions before 1.4.0, this now works as expected (#146)
• An unnecessary variable was generated when parameters appeared in a cp.reshape expression (#182)

What's Changed

• Specify order for reshape atom by @jonathanberthias in #123
• Rename repo and move gurobi package to subfolder by @jonathanberthias in #125
• Enable some ruff rules for docstrings by @jonathanberthias in #128
• Make test case toggling future-proof by @jonathanberthias in #129
• Set up layout for SCIP by @jonathanberthias in #132
• Initial support for translation to SCIP model by @jonathanberthias in #133
• Enable scalar linear and quadratic test cases for SCIP by @jonathanberthias in #134
• Enable quad_form tests for SCIP by @jonathanberthias in #135
• Enable testing of attributes by @jonathanberthias in #136
• Fix reshape translation for SCIP by @jonathanberthias in #137
• Support sum with axis for SCIP by @jonathanberthias in #138
• Enable sum_scalar tests for SCIP by @jonathanberthias in #140
• Enable SCIP tests for matrix constraints by @jonathanberthias in #142
• Run all tests on failure by @jonathanberthias in #144
• Cleanup snapshot files' naming by @jonathanberthias in #145
• Fix support for quadratic matrix constraints by @jonathanberthias in #146
• Suport abs translation for SCIP by @jonathanberthias in #148
• Support exp/log with SCIP by @jonathanberthias in #150
• Enable indexing tests for SCIP by @jonathanberthias in #151
• Support norm1 atom with SCIP by @jonathanberthias in #152
• Handle norm2 with SCIP by @jonathanberthias in #153
• Support h- and v-stack with SCIP by @jonathanberthias in #154
• Support cp.min and cp.max with SCIP by @jonathanberthias in #155
• Support minimum and maximum with SCIP by @jonathanberthias in #157
• Support norminf with SCIP by @jonathanberthias in #159
• Use common exception hierarchy by @jonathanberthias in #160
• Add global interface that dispatches to the solvers by @jonathanberthias in #163
• Remove unused methods from SCIP implementation by @jonathanberthias in #164
• Write snapshots using CVXPY 1.7 by @jonathanberthias in #171
• Prevent insta from deleting all snapshots on startup by @jonathanberthias in #173
• Update README.md with SCIP by @jonathanberthias in #174
• Update changelog by @jonathanberthias in #175
• Drop support for Python 3.8 by @jonathanberthias in #179
• Remove auxilliary variable when reshaping parameters by @jonathanberthias in #182
• Prevent Renovate from updating oldest versions by @jonathanberthias in #183
• Add support for variable bounds by @jonathanberthias in #184
• Error on unsupported leaf attributes by @jonathanberthias in #188
• Add extras for cvxpy and cvxpy-base by @jonathanberthias in #189
• Error on partially boolean or integer variables by @jonathanberthias in #190
• Use GitHub environments when publishing package by @jonathanberthias in #191
• Prepare v2.0.0 release by @jonathanberthias in #192
• Exclude bots from autogenerated changelog by @jonathanberthias in #193

Full Changelog: v1.2.0...v2.0.0