v0.8.0

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #505
• perf: matrix accessor rewrite by @coroa in #630
• docs(piecewise): rewrite reference page + tutorials for correctness and pedagogy by @FBumann in #677
• docs: fix broken toctree, refresh API reference, and clean up references by @FBumann in #680
• refactor: stateful Solver instances and two-step solve API by @FabianHofmann in #682
• docs: silence HiGHS console output in tutorial notebooks by @FBumann in #678
• docs: reorganize toctree into basic→advanced sections, rewrite user-guide landing by @FBumann in #681
• docs: credit Felix Bumann in copyright, author, and pyproject maintainers by @FBumann in #687
• feat(xpress): add direct API support via loadproblem by @FabianHofmann in #684
• deps: add remote extra for paramiko and migrate install docs to uv by @FBumann in #686
• fix(sos): refuse masked SOS variables with a clear error; fix reformulate_sos=True no-op on native SOS solvers by @FBumann in #689
• fix(test): only skip GPU-only solvers without --run-gpu (#693) by @FBumann in #694
• refactor(sos): add Model.apply/undo_sos_reformulation methods by @FBumann in #690
• fix(remote): use TemporaryDirectory to avoid Windows tempfile lock by @FabianHofmann in #698
• Xpress 9.9+ backward compatibility and other updates by @brunoficoxpress in #701
• ci: swap aflc/pre-commit-jupyter for nbstripout by @FBumann in #700
• fix(sos): SOS constraints on masked variables (#688) by @FBumann in #692
• fix(xpress): use ExitStack to manage xpress.problem() lifecycle by @brunoficoxpress in #702
• fix(license-leaks): release license slot from Mosek, COPT, and MindOpt probe and solver paths by @FBumann in #695
• drop python 3.10 support by @lkstrp in #721
• refactor(types): unify SUPPORTED_CONSTANT_TYPES with ConstantLike alias by @FBumann in #728
• Improve Mosek interface to select optimal solution by @mgrabovsky in #667
• Feature/example of drop=True by @RobbieKiwi in #557
• refactor: unify coords-as-truth handling in add_variables/add_constraints by @FBumann in #732
• ci: fix model runs by @lkstrp in #522
• perf(matrices): cache MatrixAccessor properties with cached_property by @MaykThewessen in #716
• feat: add BaseExpression.has_terms property by @FBumann in #743
• refactor: move alignment code to linopy/alignment.py; restructure tests by @FBumann in #742
• 311 syntax by @RobbieKiwi in #739
• chore: Return Self from SolverStatus.from_termination_condition by @FBumann in #746
• docs: AI-assisted contribution guide by @FBumann in #754
• fix(alignment): tolerate xarray without CoordinateValidationError by @FBumann in #762
• fix: regression with tuple coords entries as xarray's (dim_name, values) by @FBumann in #766
• test: use public API in assertions instead of internal .data by @FBumann in #760
• fix(groupby): group by non-dimension coordinate names; fast multi-key grouping by names (#750, #753) by @FBumann in #751
• fix: Variable.fix() value alignment on named dimensions by @FBumann in #774
• feat: Add indicator constraints by @mcoughlin in #594
• feat: add m.dualize() by @bobbyxng in #626
• docs: cut release notes for v0.8.0 by @FBumann in #759

New Contributors

• @mgrabovsky made their first contribution in #667

Full Changelog: v0.7.0...v0.8.0

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