v1.27.0

MathOptInterface v1.27.0

Diff since v1.26.0

Merged pull requests:

• [Nonlinear] add support for univariate sign (#2444) (@odow)
• [FileFormats.NL] fix copy_to if MOI.Name is set (#2446) (@odow)
• Prep for v1.27.0 (#2447) (@odow)

Closed issues:

• [FileFormats.MPS] store matrix for writing in column order (#2420)
• Add support for nonlinear sign(x) (#2448)
• Reading .mps file with NAME (#2445)

v1.26.0

MathOptInterface v1.26.0

Diff since v1.25.3

Merged pull requests:

• [docs] fix formatting of BasisStatusCode docstring (#2430) (@odow)
• [FileFormats.MPS] fix writing duplicate bounds for binary variables (#2431) (@odow)
• [FileFormats.MPS] tidy and refactor test/FileFormats/MPS/MPS.jl (#2433) (@odow)
• [FileFormats.NL] improve error msg when parsing unhandled headers (#2436) (@odow)
• [FileFormats.NL] fix writing free nonlinear constraint (#2437) (@odow)
• [Nonlinear] add timer to Evaluator for MOI.initialize (#2438) (@odow)
• Prep for v1.26.0 (#2439) (@odow)
• [Nonlinear] throw error if Hessian storage is insufficient (#2441) (@odow)

Closed issues:

• [FileFormats.MPS] Problem when reading generated MPS with CPLEX (#2425)
• [Nonlinear] add initialize timer (#2432)
• [FileFormats.NL] cannot read models with S section (#2434)
• [FileFormats.NL] write free rows (#2435)
• ReverseAD doesn't error for out-of-bound writes (#2440)

v1.25.3

MathOptInterface v1.25.3

Diff since v1.25.2

Merged pull requests:

• [Utilities] use appropriate zero type for get_fallback (#2414) (@odow)
• [Bridges] throw better error when variable cannot be unbridged (#2415) (@odow)
• [Bridge] implement special case for x != y in CountDistinctToMILPBridge (#2416) (@odow)
• [FileFormats.MPS] improve performance of MPS writer (#2418) (@odow)
• [FileFormats.MPS] improve performance of MPS writer (#2421) (@odow)
• Update solver-tests.yml with more packages (#2423) (@odow)
• [FileFormats.MPS] revert change for backwards compatibility (#2424) (@odow)
• [FileFormats.MPS]: avoid creating list of variable names (#2426) (@mlubin)
• Prep for v1.25.3 (#2427) (@odow)
• Fix tests for Julia master (#2428) (@odow)
• Fix typos in attributes.jl (#2429) (@odow)

Closed issues:

• Add support for NotEqualTo != (#2405)
• [Utilities] get_fallback assumes Float64 (#2412)
• Make FileFormats.MPS.Model an AbstractOptimizer (#2417)

v1.25.2

MathOptInterface v1.25.2

Diff since v1.25.1

Merged pull requests:

• [Bridges] fix getting ConstraintPrimal if Variable bridges are present (#2396) (@odow)
• [docs] clarify ordering of nonlinear tape (#2401) (@odow)
• [docs] update vale to v3.0.5 (#2403) (@odow)
• Some more vale fixes (#2404) (@odow)
• [Utilities] fix modify_function! for ScalarQuadraticCoefficientChange (#2408) (@odow)
• [FileFormats.MOF] fix affine and quadratic nodes in ScalarNonlinearFunction (#2409) (@odow)
• Prep for v1.25.2 (#2410) (@odow)
• Tidy src/Utilities/results.jl (#2411) (@odow)

Closed issues:

• Failure with CachingOptimizer (#2384)
• MOF broken with new NLP backend (#2407)

v1.25.1

MathOptInterface v1.25.1

Diff since v1.25.0

Merged pull requests:

• [Bridges] fix deleting variable in Bridges.Variable.VectorizeBridge (#2393) (@odow)
• Fix map_indices for AbstractAutomaticDifferentiation (#2394) (@odow)
• [Bridges] remove duplicated test (#2395) (@odow)
• Fix Exception supertype of LowerBoundAlreadySet and UpperBoundAlreadySet (#2397) (@odow)
• Prep for v1.25.1 (#2399) (@odow)
• [docs] fix vale version (#2400) (@odow)

v1.25.0

MathOptInterface v1.25.0

Diff since v1.24.0

Merged pull requests:

• Add AutomaticDifferentiationBackend (#2386) (@odow)
• [Nonlinear] fix initialize for ExprGraphOnly (#2387) (@odow)
• Fix converting 0-valued Scalar(Affine,Quadratic)Function to Nonlinear (#2388) (@odow)
• Prep for v1.25.0 (#2389) (@odow)
• [FileFormats.NL] ignore, rather than error, when names are given (#2390) (@odow)
• [FileFormats.NL] fix reading file with no objective (#2391) (@odow)
• [FileFormats.NL] fix support for reading free constraints (#2392) (@odow)

Closed issues:

• Add AutomaticDifferentiationBackend attribute (#2385)

v1.24.0

MathOptInterface v1.24.0

Diff since v1.23.0

Merged pull requests:

• SnoopComile -> SnoopCompile (#2355) (@blegat)
• Simpler side_dimension_for_vectorized_dimension (#2356) (@blegat)
• Run all tests against bridged SDPA model (#2357) (@blegat)
• Fix RSOCtoPSD bridge for dimension 2 (#2359) (@blegat)
• [Bridges] Fix ConstraintFunction getter of conversion bridge with small rounding errors (#2360) (@blegat)
• [Bridges] Fix ConstraintIndex conflicts between variable and constraint bridges (#2362) (@blegat)
• Standalone StandardSDPAModel (#2364) (@blegat)
• Ignore SlackBridgePrimalDualStart for non-Slack bridge (#2365) (@blegat)
• Fix map_indices with attributes (#2367) (@blegat)
• Add DiffOpt and ParametricOptInterface to solver-tests.yml (#2368) (@odow)
• Allow get to return non-nothing (#2370) (@blegat)
• Fix order of model attributes during copy_to (#2372) (@odow)
• [Utilities.CachingOptimizer] Enable fallback for ConstraintDual of variable indices (#2373) (@blegat)
• [docs] fix changelog.md (#2374) (@odow)
• [Bridges] fix BoundAlreadySet errors (#2376) (@odow)
• [Bridges] Fix deletion corner cases (#2377) (@blegat)
• [Bridges] Fix ListOfVariablesWithAttributeSet (#2380) (@blegat)
• Prep for v1.24.0 (#2381) (@odow)
• [Bridges] Throw in Constraint.SlackBridge if scalar constant is nonzero (#2382) (@blegat)
• [Bridges] Throw for bound already set on bridged variable (#2383) (@blegat)

Closed issues:

• Scalarize bridge error (#2363)
• Order of model attributes during copy (#2366)
• [Bridges] bug with multiple variable bounds (#2375)
• Can I submit multiple constraints in the callback function？ (#2378)

v1.23.0

MathOptInterface v1.23.0

Diff since v1.22.0

Merged pull requests:

• [Bridges] Add MOI.Bridge.FirstBridge attribute (#2211) (@blegat)
• [Test] add verbose kwarg to MOI.Test.runtests (#2347) (@odow)
• [Bridges] add ConstraintPrimalStart for GeoMeanBridge (#2348) (@blegat)
• Fix requirees for test_model_Name_VariableName_ConstraintName (#2349) (@odow)
• [Utilities] improve errors and docstrings for querying attributes (#2350) (@odow)
• Prep for v1.23.0 (#2353) (@odow)

Closed issues:

• Attributes simultaneously set by the user and by the optimizer (#2345)
• Test does not check for supports properly (#2346)
• MOI.get on attribute where is_set_by_optimizer = true and TerminationStatus = OPTIMIZE_NOT_CALLED (#2352)

v1.22.0

MathOptInterface v1.22.0

Diff since v1.21.0

Merged pull requests:

• [Bridges] add {SOS1,SOS2,Indicator}ToMILPBridge (#2318) (@odow)
• [Bridges] fix VectorNonlinearFunction support in NormOne and NormInfinty bridges (#2324) (@odow)
• [Test] allow skipping ScalarFunctionConstantNotZero errors (#2325) (@odow)
• [docs] fix docstring of ScalarAffineFunction (#2326) (@odow)
• [Bridges] fix some getters of ConstraintFunction and add better tests (#2328) (@odow)
• Improve error message unsupported attribute for bridges (#2329) (@blegat)
• Implement starting values for Variable.Hermitian bridge (#2330) (@blegat)
• Add ListOfVariablesWithAttributeSet and ListOfConstraintsWithAttributeSet (#2331) (@odow)
• Add Gurobi to solver-tests.yml (#2332) (@odow)
• [docs] add more docs for implementing a bridge (#2334) (@odow)
• [Utilities] print the name of scalar constraints in print(::ModelLike) (#2336) (@odow)
• [Bridges] add VariablePrimalStart support to ParameterToEqualTo and RSOCtoPSD (#2337) (@odow)
• [Bridges] add support for start values in NumberConversionBridge (#2338) (@odow)
• [Bridges] add support for Constraint{Primal,Dual}Start to SquareBridge (#2339) (@odow)
• [Bridges] fix supports of Constraint and Variable starts for some bridges (#2340) (@odow)
• Prep for v1.22 (#2341) (@odow)
• Fix ListOfConstraintsWithAttributeSet for AbstractBridgeOptimizer (#2343) (@odow)
• Fix compat bounds in Project.toml (#2344) (@odow)

Closed issues:

• FileFormats.CBF: support constrained variables (#1402)
• Explain bridges in the documentation (better) (#1504)
• promote not working (#1785)
• Indicator and SOS to MILP bridges (#2316)
• Get list of indices with non-default attribute values (#2317)
• Getting ConstraintFunction on norm cones with nonlinear functions fails (#2323)
• Starting value in unsupported bridge errors instead of skipping (#2327)
• Print a constraint with Name (#2335)
• ListOfConstraintsWithAttributeSet broken for bridges (#2342)

v1.21.0

MathOptInterface v1.21.0

Diff since v1.20.1

Merged pull requests:

• [Test] improve test_attribute_TimeLimitSec (#2256) (@odow)
• Add SolutionLimit attribute (#2291) (@odow)
• [FileFormats.MOF] add MathOptFormat@1.6 support (#2293) (@odow)
• Add ScalarQuadraticCoefficientChange (#2296) (@odow)
• [docs] add arxiv.org to linkcheck_ignore because it is flakey (#2297) (@odow)
• [FileFormats.MOF] add support for MOF@1.7 (#2298) (@odow)
• [FileFormats.MOF] rename to use_nlp_block and add documentation (#2299) (@odow)
• [Utilities] add modify_constants for MOI.modify in MatrixOfConstraints (#2300) (@odow)
• Add Objective.FunctionConversionBridge (#2303) (@blegat)
• [docs] add preprint to accept.txt (#2304) (@odow)
• [Nonlinear] add support for is_empty and empty! (#2305) (@odow)
• [Bridges] add ModifyBridgeNotAllowed (#2307) (@odow)
• Use conversion cost for Objective bridge (#2309) (@blegat)
• Add stdlib compat to Project.toml (#2310) (@odow)
• Add MOA to solver-tests.yml (#2312) (@odow)
• [docs] fix set descriptions in standard_form.md (#2313) (@odow)
• [Utilities] add more distance_to_set implementations (#2314) (@odow)
• Prep for v1.21.0 (#2319) (@odow)
• Fix test_modification_objective_scalarquadraticcoefficientchange (#2320) (@odow)
• [FileFormats] revert change to extract_function_and_set (#2321) (@odow)
• [Test] fix isapprox in test_modification_xxx_scalarquadraticcoefficientchange (#2322) (@odow)

Closed issues:

• Abstract / alternative linear operator storage (#863)
• MOI.modify for quadratic terms (#1208)
• Support "nonscalar" variables (like complex numbers, intervals, sequences of intervals)? (#1253)
• Implement modification of function constant for MatrixOfConstraints (#1748)
• Implement Utilities.distance_to_set for more sets (#2033)
• Optimizer option for solution limit (#2282)
• [FileFormats.MOF] add VectorNonlinearFunction support (#2292)
• Add extension support for PythonCall (#2301)
• Implement empty! and is_empty for MOI.Nonlinear.Model (#2302)
• Add ModifyNotAllowed instead of ModifyObjective/ConstraintNotAllowed (#2306)
• [Utilities] Add support for filtering variables in ModelFilter (#2308)