Changelog

Release history of econ-viz. Documentation-only changes are not listed.

Version	Changes
v1.12.0 2026-09-26	Features highlight_level emphasizes one focal indifference curve while the remaining levels use a subdued secondary style secondary_stroke and theme fields control secondary curve colour, width, and opacity Numeric and ordinal labels (u1, u2, ...) follow the local curve angle and avoid the plot boundary Changes Focal and secondary labels share the theme's indifference-curve label style; smooth, linear, kinked, and satiation preferences remain supported
v1.11.0 2026-09-26	Features Complete theme coverage for diagram backgrounds, labels, strokes, markers, and auxiliary economic lines Add paper, monochrome, presentation, and dark built-in themes Add theme-level background_color and label_scale controls
v1.10.1 2026-09-26	Maintenance Add Ruff linting and formatting plus Mypy type checking to contributor tooling and CI Publish econ-viz as a PEP 561 typed package with py.typed Standardize public exception messages in English Bug fixes Fix a missing NumPy import in contour-level annotations Bind each Edgeworth Pareto-search closure to its own weight
v1.10.0 2026-09-26	Features Config loads diagram settings from an econ-viz.toml file; Config.load(...).use() makes them the default econ-viz init writes a commented settings template, and econ-viz plot --config reads it Changes Diagrams take their theme and fonts from the active Config when none is passed; without one the output is unchanged tomli is required on Python 3.10
v1.9.0 2026-09-26	Features Price-effect decompositions draw their indifference curves by default: U0 through A, U1 through C, and the curve through B under Slutsky Haagsma utility model with an always-inferior good that becomes Giffen at high enough income Legend placed automatically where it covers the least of the diagram, or at a chosen corner or side Label for every text element: axis labels, origin, titles, effect labels, Edgeworth box text opacity on Stroke, Marker, Label, Legend, Effect, and Fill Changes Existing decomposition figures now include their indifference curves; show_curves=False restores the previous figure Effect range arrows point one way, from A to B and from B to C Bug fixes Tighter optimisation tolerance, so comparative statics and Slutsky matrices are accurate Indifference curves at negative utility levels are drawn solid
v1.8.0 2026-09-26	Features Effect sets the colour, range-arrow height, and label of each price-effect decomposition effect Marker sets point colour, size, and shape across canvases, demand diagrams, and Edgeworth boxes Label sets point-label text, position (four sides and four corners), offset, colour, size, and visibility; decomposition A/B/C labels can be hidden Fill gives the budget-set shading its own colour and opacity Axis sets one axis's label, label position, and stroke in a single object Theme defaults for markers, labels, and fills, such as theme.eq_marker, theme.point_label, and theme.budget_fill Changes Default equilibrium point size reduced from 6 to 4 Stroke is the preferred way to style lines; separate colour, width, and style arguments remain as shorthand Bug fixes Wedge arrowheads keep a fixed on-screen size instead of stretching along the line Edgeworth equilibrium indifference curves apply stroke_a / stroke_b
v1.7.0 2026-09-25	Features Independent axis-label positions, line styles, and arrowhead styles for Canvas and Figure Per-figure text and math fonts without changing Matplotlib's global configuration Stroke controls line width, style, colour, and arrowheads across canvases, figures, demand diagrams, and Edgeworth boxes econ-viz --version prints the installed package version Bug fixes Correct utility-model domains, asymmetric CES expansion paths, Cobb-Douglas limits, and satiation optima with unspent income Robust contour levels around zero and negative utility values Boundary-safe comparative statics near zero prices, income, and subsistence constraints All example scripts run from a clean checkout Maintenance Package management and builds migrated to uv CI tests Python 3.10–3.13, enforces branch coverage, and smoke-tests runnable examples Tagged releases publish only after tests pass
v1.6.0 2026-04-24	Features Colour-blind-friendly default palette, with reusable themes.COLORBLIND_CYCLE_RGB and themes.COLORBLIND_CYCLE_HEX Default indifference-curve line width reduced from 2.0 to 1.8 Maintenance Animation example moved to examples/scripts/animation.py Generated files under examples/output/ are no longer tracked Tests TikZ axis regression test no longer depends on colour indices
v1.5.0 2026-04-21	Features Pure TikZ export backend; Canvas.save() and Figure.save() accept .tex Price-effect decomposition: decompose_price_effect(), PriceEffectDecomposition, and Canvas.add_decomposition() for A/B/C bundles and substitution/income overlays Decomposition APIs importable from the package root New example scripts for decomposition, demand diagrams, PCC/ICC paths, multi-panel layouts, and TikZ export Bug fixes Notebook install flow on Colab is restart-safe Refactoring Better axis-label placement and visibility in shared-panel layouts Tests Regression tests for TikZ export and price-effect decomposition
v1.4.0 2026-04-09	Features Animator for GIF parameter sweeps via Pillow, no ffmpeg required WidgetViewer for slider controls in Jupyter notebooks Optional extras animation, interactive, and all Parameter, price, income, and budget-only GIF examples for common utility functions More reliable GIF export by compositing frames onto a solid background Notebook widgets accept typed values alongside sliders Tests Tests for Animator and WidgetViewer
v1.3.2 2026-04-03	Bug fixes Edgeworth contract curves and price lines default to dashed black Maintenance Publish workflow skips versions already on PyPI
v1.3.1 2026-04-03	Features Edgeworth internals split into compute, state, and plotter modules Model registry (models.registry), used by the CLI to build models Refactoring CLI errors raise CliConfigError, with exit handling centralized in cli.main Shared contour-level policies in contours.level_policies One figure exporter (io.exporter) shared by Canvas, Figure, and EdgeworthBox Canvas rendering split into canvas.renderers and canvas.primitives Package-root exports load lazily, with the public API unchanged
v1.3.0 2026-04-03	Features EdgeworthBox and EquilibriumFocusConfig for two-consumer exchange diagrams Contract curve, core, Walrasian equilibrium overlay, and equilibrium-focused indifference curves examples/edgeworth_box.py covering common utility-function combinations Dedicated Edgeworth tests
v1.2.3 2026-03-31	Features SlutskyMatrix checks symmetry, negative semidefiniteness, and homogeneity, and warns when a condition fails CLI supports QuasiLinear, StoneGeary, and Translog
v1.2.2 2026-03-31	Bug fixes PCC/ICC paths are smoothed by default, with slightly extended endpoints and markers hidden unless requested PCC/ICC paths use their own colours, and demand diagrams have more goods-space padding Dedicated PCC/ICC example generator and tests
v1.2.0 2026-03-30	Features Multi-panel Figure layouts and the Layout enum Linked DemandDiagram for Marshallian demand PricePath, IncomePath, and Canvas.add_path() for PCC/ICC plots
v1.1.0 2026-03-30	Features comparative_statics helper HomogeneityAnalyzer and ReturnsToScale in the analysis module Translog model, plus legend and indifference-curve labels
v1.0.2 2026-03-29	Bug fixes Math axis labels are no longer double-wrapped NumPy upper bound removed to avoid conflicts on Colab
v1.0.1 2026-03-29	Bug fixes Pin numpy<2 to avoid ABI mismatches on Colab and local installs Maintenance Relaxed Python and NumPy bounds; pytest pinned to 8.x
v1.0.0 2026-03-28	Initial release

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