Pyscipopt

Added
- Added option to get Lhs, Rhs of nonlinear constraints
- Added cutoffNode and test
- Added getMajorVersion, getMinorVersion, and getTechVersion
- Added addMatrixVar and addMatriCons
- Added MatrixVariable, MatrixConstraint, MatrixExpr, and MatrixExprCons
Fixed
- Warning at Model initialisation now uses new version calls
Changed
Removed
- Removed universal wheel type from setup.cfg (support for Python 2)

Added
- Added cdef type declaration of loop variables for slight speedup
- Added wrappers for setting and getting heuristic timing
- Added transformed option to getVarDict, updated test
- Added categorical data example
- Added printProblem to print problem to stdout
- Added stage checks to presolve, freereoptsolve, freetransform
- Added primal_dual_evolution recipe and a plot recipe
- Added python wrappers for usage of SCIPcopyLargeNeighborhoodSearch, SCIPtranslateSubSol and SCIPhashmapCreate
Fixed
- Added default names to indicator constraints
Changed
- GitHub actions using Mac now use precompiled SCIP from latest release
Removed

Added
- Expanded Statistics class to more problems.
- Created Statistics class
- Added parser to read .stats file
- Release checklist in `RELEASE.md`
- Added Python definitions and wrappers for SCIPstartStrongbranch, SCIPendStrongbranch SCIPgetBranchScoreMultiple,
SCIPgetVarStrongbranchInt, SCIPupdateVarPseudocost, SCIPgetVarStrongbranchFrac, SCIPcolGetAge,
SCIPgetVarStrongbranchLast, SCIPgetVarStrongbranchNode, SCIPallColsInLP, SCIPcolGetAge
- Added getBipartiteGraphRepresentation
- Added helper functions that facilitate testing
- Added Python definitions and wrappers for SCIPgetNImplVars, SCIPgetNContVars, SCIPvarMayRoundUp,
SCIPvarMayRoundDown, SCIPcreateLPSol, SCIPfeasFloor, SCIPfeasCeil, SCIPfeasRound, SCIPgetPrioChild,
SCIPgetPrioSibling
- Added additional tests to test_nodesel, test_heur, and test_strong_branching
- Migrated documentation to Readthedocs
- `attachEventHandlerCallback` method to Model for a more ergonomic way to attach event handlers
- Added Model method: optimizeNogil
- Added Solution method: getOrigin, retransform, translate
- Added SCIP.pxd: SCIP_SOLORIGIN, SCIPcopyOrigVars, SCIPcopyOrigConss, SCIPsolve nogil, SCIPretransformSol, SCIPtranslateSubSol, SCIPsolGetOrigin, SCIPhashmapCreate, SCIPhashmapFree
- Added additional tests to test_multi_threads, test_solution, and test_copy
Fixed
- Fixed too strict getObjVal, getVal check
Changed
- Changed createSol to now have an option of initialising at the current LP solution
- Unified documentation style of scip.pxi to numpydocs
Removed

Added
- Added SCIP_STATUS_DUALLIMIT and SCIP_STATUS_PRIMALLIMIT
- Added SCIPprintExternalCodes (retrieves version of linked symmetry, lp solver, nl solver etc)
- Added recipe with reformulation for detecting infeasible constraints
- Wrapped SCIPcreateOrigSol and added tests
- Added verbose option for writeProblem and writeParams
- Expanded locale test
- Added methods for creating expression constraints without adding to problem
- Added methods for creating/adding/appending disjunction constraints
- Added check for pt_PT locale in test_model.py
- Added SCIPgetOrigConss and SCIPgetNOrigConss Cython bindings.
- Added transformed=False option to getConss, getNConss, and getNVars
Fixed
- Fixed locale errors in reading
Changed
- Made readStatistics a standalone function
Removed

Added
- Added recipe for nonlinear objective functions
- Added method for adding piecewise linear constraints
- Add SCIP function SCIPgetTreesizeEstimation and wrapper getTreesizeEstimation
- New test for model setLogFile
Fixed
- Fixed locale fix
- Fixed model.setLogFile(None) error
- Add recipes sub-package
- Fixed "weakly-referenced object no longer exists" when calling dropEvent in test_customizedbenders
- Fixed incorrect writing/printing when user had a non-default locale
Changed
Removed

Added
- Added SCIP function addExprNonlinear
- Add support for Cython 3
- Added methods for getting the names of the current stage and of an event
- Add support for SCIP symmetry graph callbacks in constraint handlers
Fixed
- Fixed README links
- Fixed outdated time.clock call in gcp.py
Changed
- Changed default installation option via pypi to package pre-build SCIP