v0.7.0

What's Changed

• feat: add sos reformulations into linopy to simplify adoption of new sos features by @FBumann in #549
• feat: add piecewise linear constraint API (SOS2, incremental, disjunctive) by @FBumann in #576
• Add reformulate_sos='auto' support to solve() by @FabianHofmann in #595
• fix: make google-cloud-storage and requests optional dependencies by @lkstrp in #589
• build(deps): bump the github-actions group with 3 updates by @dependabot[bot] in #598
• Expose the knitro context by @finozzifa in #600
• enable quadratic for win with scip by @davide-f in #588
• Piecewise linear constraints: follow-up improvements by @FabianHofmann in #602
• Fix flaky SCIP time limit test (fixes #577) by @FabianHofmann in #606
• refac: introduce consistent convention for linopy operations with subsets and supersets by @FabianHofmann in #572
• Fix Xpress IIS mapping for masked constraints by @FabianHofmann in #605
• handle missing dual values when barrier solution has no crossover by @danielelerede-oet in #601
• feat: Add semi-continous variables as an option by @mcoughlin in #593
• ci: Add CI workflow to test documentation notebooks by @FBumann in #615
• Add OetcSettings.from_env() and forward solver options through Model.solve() by @FabianHofmann in #612
• feat: add m.copy() method to create deep copy of model by @bobbyxng in #623
• feat: Add fix(), unfix(), and fixed to Variable and Variables by @FBumann in #625
• fix: Include semi-continuous in Variable.type property by @FBumann in #635
• Re-introduce knitro context closure and export solver quantities by @finozzifa in #633
• feat: Add relax() and unrelax() to Variable and Variables by @FBumann in #634
• refac: replace print calls with str-returning format_* methods by @FBumann in #621
• perf: use numpy array lookup for solution unpacking by @MaykThewessen in #619
• chore: benchmarks by @FBumann in #567
• fix: add_variables ignoring coords for DataArray bounds by @FBumann in #614
• fix: blacklist highs 1.14.0 by @coroa in #654
• fix: use xarray.Dataset copy instead of constructor by @maurerle in #647
• feat: add weakref to Model.slots by @FBumann in #656
• fix: as_dataarray treating multi-index levels as extra dims by @FabianHofmann in #659
• fix: compute a single IIS in Xpress infeasibility path by @FabianHofmann in #658
• Update release notes for v0.6.7 by @FabianHofmann in #661
• fix: raise clear error when solving model without objective by @FBumann in #671
• build(deps): bump the github-actions group across 1 directory with 3 updates by @dependabot[bot] in #669
• feat: Unify piecewise API behind add_piecewise_formulation (sign + LP dispatch) by @FBumann in #638
• feat: add slopes_align to breakpoints() by @FabianHofmann in #672
• refac(piecewise): introduce Slopes class, remove breakpoints(slopes=) mode by @FBumann in #673
• fix: serialize MultiIndex level names as JSON for scipy netCDF backend by @FBumann in #674
• docs: restructure upcoming changelog and add missing PRs by @FBumann in #675
• chore: Update release notes for v0.7.0 by @FBumann in #676

New Contributors

• @finozzifa made their first contribution in #600
• @davide-f made their first contribution in #588
• @danielelerede-oet made their first contribution in #601
• @mcoughlin made their first contribution in #593
• @bobbyxng made their first contribution in #623
• @MaykThewessen made their first contribution in #619

Full Changelog: v0.6.4...v0.7.0

v0.6.7

Full Changelog: v0.6.6...v0.6.7

v0.6.6

Full Changelog: v0.6.5...v0.6.6

v0.6.5

Full Changelog: v0.6.4...v0.6.5

v0.6.4

What's Changed

• fix: update HiGHS URLs and naming by @FabianHofmann in #585
• Add Knitro solver support by @FabianHofmann in #532

Full Changelog: v0.6.3...v0.6.4

v0.6.3

What's Changed

• Bugfix/fix readthedocs by @RobbieKiwi in #574
• fix polars dep lb by @FBumann in #578
• fix: revert np.where to xarray.where when adding vars/ constraints by @lkstrp in #575
• test and future warning for #575 by @lkstrp in #579
• Reinsert broadcasted mask by @FabianHofmann in #580
• fix: add coords and dims to as_dataarray by @FabianHofmann in #582

Full Changelog: v0.6.2...v0.6.3

v0.6.2

What's Changed

• add sphinx_copybutton extension by @mosc9575 in #553
• Bugfix/gurobi license and docs by @RobbieKiwi in #556
• Fix multiplication of constant-only LinearExpression by @FabianHofmann in #568
• perf: speed up LP file writing (2.5-3.9x on large models, no regressions on small) by @FBumann in #564
• Add auto_mask parameter to Model class by @FBumann in #555

New Contributors

• @mosc9575 made their first contribution in #553

Full Changelog: v0.6.1...v0.6.2

v0.6.1

What's Changed

• Fix -0.0 handling in lp writer by @FBumann in #544
• fix: don't init gurobi on import by @lkstrp in #548

Full Changelog: v0.6.0...v0.6.1

v0.6.0

What's Changed

• build(deps): bump the github-actions group with 3 updates by @dependabot[bot] in #519
• fix (solvers): Add compatibility shim for xpress.Namespaces by @coroa in #521
• Speed up printing by @FBumann in #526
• build(deps): bump actions/checkout from 5 to 6 in the github-actions group by @dependabot[bot] in #527
• Feature/solver features registry by @FBumann in #528
• add linear expression from constant by @RobbieKiwi in #518
• Feature/simplify expression by @RobbieKiwi in #530
• feat: Add sos constraints by @coroa in #495
• Add Xpress 9.8+ API support with backward compatibility by @brunoficoxpress in #542
• fix(highs): stop solve on Ctrl-C by @FabianHofmann in #536
• fix(solvers): add forgotten xpress getDual fallback by @coroa in #547
• Bugfix/fix notebook docs by @RobbieKiwi in #546
• fix: correct regex to capture negative objective values when using CBC by @qheuristics in #540
• build(deps): bump the github-actions group with 3 updates by @dependabot[bot] in #543
• Feature/dummy solve by @RobbieKiwi in #534
• Add support for solver cuPDLPx by @mal84emma in #516

New Contributors

• @brunoficoxpress made their first contribution in #542
• @mal84emma made their first contribution in #516

Full Changelog: v0.5.8...v0.6.0

What's Changed

• build(deps): bump the github-actions group with 3 updates by @dependabot[bot] in #519
• fix (solvers): Add compatibility shim for xpress.Namespaces by @coroa in #521
• Speed up printing by @FBumann in #526
• build(deps): bump actions/checkout from 5 to 6 in the github-actions group by @dependabot[bot] in #527
• Feature/solver features registry by @FBumann in #528
• add linear expression from constant by @RobbieKiwi in #518
• Feature/simplify expression by @RobbieKiwi in #530
• feat: Add sos constraints by @coroa in #495
• Add Xpress 9.8+ API support with backward compatibility by @brunoficoxpress in #542
• fix(highs): stop solve on Ctrl-C by @FabianHofmann in #536
• fix(solvers): add forgotten xpress getDual fallback by @coroa in #547
• Bugfix/fix notebook docs by @RobbieKiwi in #546
• fix: correct regex to capture negative objective values when using CBC by @qheuristics in #540
• build(deps): bump the github-actions group with 3 updates by @dependabot[bot] in #543
• Feature/dummy solve by @RobbieKiwi in #534
• Add support for solver cuPDLPx by @mal84emma in #516

New Contributors

• @brunoficoxpress made their first contribution in #542
• @mal84emma made their first contribution in #516

Full Changelog: v0.5.8...v0.6.0

v0.5.8

What's Changed

• bugfix: Fixed multiplication with numpy constants by @RobbieKiwi in #494
• fix: lp-polars api by @CharlieFModo in #485
• Replace pandas-based LP file writing with polars implementation by @FabianHofmann in #496
• perf: use xpress c interface, xpress solution order of operations improvement, remove writing of redundant solution files by @CharlieFModo in #497
• Fix windows permission error when dumping model file by @KristijanFaust-OET in #501
• Oetc windows hotfix 2 by @KristijanFaust-OET in #503
• doc: add jupyter notebook with oetc example use by @FabianHofmann in #490
• fix: relaxed upcasting in pl.concat by @FabianHofmann in #507
• Fetch and display OETC worker error logs by @KristijanFaust-OET in #512
• Fix expression merge with outer join for disjoint coordinates by @FabianHofmann in #514
• Feature/add polars input by @RobbieKiwi in #511
• Handle ImportError in xpress import by @FabianHofmann in #509
• Adding xpress postsolve if necessary by @come-bissuel in #421

New Contributors

• @CharlieFModo made their first contribution in #485
• @KristijanFaust-OET made their first contribution in #501
• @come-bissuel made their first contribution in #421

Full Changelog: v0.5.7...v0.5.8