16 Pull requests merged by 11 people

• Fix spurious warning from type_of_target when called on estimator.classes_

  #31584 merged Jul 14, 2025

• Fix PandasAdapter causes crash or misattributed features

  #31079 merged Jul 11, 2025

• MNT Add more sample weight checks in regression metric common tests

  #31726 merged Jul 11, 2025

• DOC: Update a link to a research paper

  #31739 merged Jul 11, 2025

• Update pre-commit ruff legacy alias

  #31740 merged Jul 11, 2025

• MNT little refactor and doc improvement for metadata routing consumes() methods

  #31703 merged Jul 11, 2025

• CI Remove constraints for scipy version in pylatest_conda_mkl_no_openmp job

  #31729 merged Jul 10, 2025

• TST use global_random_seed in sklearn/covariance/tests/test_covariance.py

  #31734 merged Jul 10, 2025

• DOC: Correct several math typos in the User Guide

  #31736 merged Jul 10, 2025

• DOC Fix broken formatting of cohen_kappa_score docstring

  #31732 merged Jul 10, 2025

• TST use global_random_seed in sklearn/covariance/tests/test_graphical…

  #31692 merged Jul 8, 2025

• CI Move some pip_dependencies to conda_dependencies

  #31623 merged Jul 8, 2025

• FIX short deprecation cycle for private module

  #31500 merged Jul 8, 2025

• TST use global_random_seed in sklearn/compose/tests/test_column_transformer.py

  #31720 merged Jul 8, 2025

• MNT Remove built_with_meson logic

  #31718 merged Jul 7, 2025

• DOC add link for Discussions in the footer

  #31704 merged Jul 7, 2025

10 Pull requests opened by 7 people

• FIX Avoid fitting a pipeline without steps

  #31723 opened Jul 8, 2025

• Add support for bools in SimpleImputer

  #31730 opened Jul 9, 2025

• BUG: Fix _most_frequent to safely handle incomparable types (e.g. Non…

  #31737 opened Jul 10, 2025

• DOC: LaTeX improvements

  #31741 opened Jul 11, 2025

• FIX FeatureUnion._set_output for pandas Series (#31318)

  #31751 opened Jul 13, 2025

• MAINT Clean up deprecations for 1.8: scoring='max_error'

  #31753 opened Jul 13, 2025

• :lock: :robot: CI Update lock files for scipy-dev CI build(s) :lock: :robot:

  #31755 opened Jul 14, 2025

• :lock: :robot: CI Update lock files for free-threaded CI build(s) :lock: :robot:

  #31756 opened Jul 14, 2025

• :lock: :robot: CI Update lock files for array-api CI build(s) :lock: :robot:

  #31757 opened Jul 14, 2025

• :lock: :robot: CI Update lock files for main CI build(s) :lock: :robot:

  #31758 opened Jul 14, 2025

13 Issues closed by 10 people

• Unjustified "number of unique classes > 50%" warning in CalibratedClassifierCV

  #31583 closed Jul 14, 2025

• `PandasAdapter` causes crash or misattributed features

  #31051 closed Jul 11, 2025

• ⚠️ CI failed on Linux_Runs.pylatest_conda_forge_mkl (last failure: Jul 09, 2025) ⚠️

  #31724 closed Jul 10, 2025

• Build in an option to change the "positive" class in sklearn.metrics.precision_recall_curve and sklearn.metrics.roc_curve

  #26758 closed Jul 10, 2025

• enh: support aggregation/bagging functions other than mean

  #30986 closed Jul 10, 2025

• Add More Data to the RidgeCV, LassoCV, and ElasticNetCV Path

  #31733 closed Jul 10, 2025

• _weighted_percentile does not lead to the same result than np.median

  #17370 closed Jul 10, 2025

• `scipy.minimize(method=’L-BFGS-B’)` deprecation warning for `iprint` and `disp` arguments

  #31731 closed Jul 9, 2025

• What are the coefficients returned by Polynomial Ridge Regression (or any regression)?

  #31719 closed Jul 9, 2025

• Confusion around coef_ and intercept_ for Polynomial Ridge Regression inside a Pipeline

  #31725 closed Jul 9, 2025

• `test_unsorted_indices` for `SVC` may fail randomly with sparse vs dense data

  #31722 closed Jul 8, 2025

• memory leak for QuantileTransformer

  #31668 closed Jul 8, 2025

• Community section: add link to GitHub discussions

  #29530 closed Jul 7, 2025

12 Issues opened by 6 people

• In Balltree, filter out/mask specific points in query

  #31754 opened Jul 13, 2025

• type_of_target misclassifies count/ordinal regression targets as multiclass

  #31752 opened Jul 13, 2025

• Full Python/sklearn Adaptation of py-earth

  #31750 opened Jul 13, 2025

• sklearn.utils.validation.column_or_1d not working as in the documentation.

  #31749 opened Jul 12, 2025

• sklearn.linear_model.Lasso missing check for invalid alpha

  #31748 opened Jul 12, 2025

• sklearn.feature_selection.SelectKBest invalid check for floating k

  #31747 opened Jul 12, 2025

• sklearn.preprocessing.PolynomialFeatures invalid check for negative degree

  #31746 opened Jul 12, 2025

• weak check on sklearn.decomposition.TruncatedSVD for n_components

  #31745 opened Jul 12, 2025

• Weak check on sklearn.cluster.KMeans for n_clusters

  #31744 opened Jul 12, 2025

• sklearn.model_selection.RepeatedKFold not validating invalid n_splits

  #31743 opened Jul 12, 2025

• Present parameters and attributes sorted alphabetically to make it easier to find them on the documentation pages.

  #31738 opened Jul 10, 2025

• Making the extension contract stable through version upgrades

  #31728 opened Jul 9, 2025

44 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• FIX: Regression in DecisionBoundaryDisplay.from_estimator with colors and plot_method='contour'

  #31553 commented on Jul 11, 2025 • 21 new comments

• DOC Fix `pos_label` docstring in Display classes

  #31696 commented on Jul 14, 2025 • 8 new comments

• MNT refactoring in routing _MetadataRequester

  #31534 commented on Jul 8, 2025 • 8 new comments

• Mention possibility of regression targets in warning about unique classes >50% of n_samples

  #31689 commented on Jul 14, 2025 • 6 new comments

• DOC Update plots in Categorical Feature Support in GBDT example

  #31062 commented on Jul 11, 2025 • 6 new comments

• FIX Draw indices using sample_weight in Forest

  #31529 commented on Jul 8, 2025 • 4 new comments

• FIX metadata routing for scorer

  #31654 commented on Jul 11, 2025 • 3 new comments

• ENH: Add xlim/ylim parameters to DecisionBoundaryDisplay.from_estimator

  #31693 commented on Jul 8, 2025 • 2 new comments

• ENH Array API for `contingency_matrix`

  #29251 commented on Jul 9, 2025 • 2 new comments

• MNT Add `_check_sample_weights` to classification metrics

  #31701 commented on Jul 14, 2025 • 1 new comment

• DOC: Add missing link to example in plot_digits_agglomeration.py

  #31681 commented on Jul 7, 2025 • 1 new comment

• Refactor weighted percentile functions to avoid redundant sorting

  #30945 commented on Jul 11, 2025 • 1 new comment

• More details about the Crammer-Singer method for LinearSVM

  #13556 commented on Jul 7, 2025 • 0 new comments

• ENH add `from_cv_results` in `PrecisionRecallDisplay` (single Display)

  #30508 commented on Jul 11, 2025 • 0 new comments

• Enable config setting `sparse_interface` to control sparray and spmatrix creation

  #31177 commented on Jul 14, 2025 • 0 new comments

• Unbiased MDI-like feature importance measure for random forests

  #31279 commented on Jul 8, 2025 • 0 new comments

• ENH Display fitted attributes in HTML representation

  #31442 commented on Jul 9, 2025 • 0 new comments

• FIX `FunctionTransformer.get_feature_names_out` when output is set to dataframe

  #31573 commented on Jul 13, 2025 • 0 new comments

• DOC add links to plot_polynomial_interpolation.py

  #31576 commented on Jul 9, 2025 • 0 new comments

• Add vector quantization example to KBinsDiscretizer docs

  #31613 commented on Jul 13, 2025 • 0 new comments

• Fix sample weight handling in SAG(A)

  #31675 commented on Jul 7, 2025 • 0 new comments

• Docs: Add Nvidia RAPIDS

  #31682 commented on Jul 10, 2025 • 0 new comments

• WIP: ENH Display Methods in HTML representation

  #31698 commented on Jul 11, 2025 • 0 new comments

• Feat: DummyClassifier strategy that produces randomized probabilities

  #31462 commented on Jul 7, 2025 • 0 new comments

• Frisch-Newton Interior Point Solver for Quantile Regression

  #31708 commented on Jul 7, 2025 • 0 new comments

• Pipelines are permitted to have no steps and are displayed as fitted

  #31700 commented on Jul 8, 2025 • 0 new comments

• Improve tests by using global_random_seed fixture to make them less seed-sensitive

  #22827 commented on Jul 8, 2025 • 0 new comments

• Incorrect error message in `_check_sample_weight`

  #31712 commented on Jul 9, 2025 • 0 new comments

• Add support for bools in `SimpleImputer`

  #26292 commented on Jul 9, 2025 • 0 new comments

• SimpleImputer converts `int32[pyarrow]` extension array to `float64`, subsequently crashing with numpy `int32` values

  #31373 commented on Jul 9, 2025 • 0 new comments

• DOC Improve documentation on generating pdf (or epub) of our docs

  #20859 commented on Jul 10, 2025 • 0 new comments

• EmpiricalCovariance user guide assume_centered tip incorrect

  #31705 commented on Jul 10, 2025 • 0 new comments

• DOC About Us page - clarify team descriptions

  #31653 commented on Jul 10, 2025 • 0 new comments

• DOC Managing huntr security vulnerability reports

  #31657 commented on Jul 10, 2025 • 0 new comments

• Automatically move `y` (and `sample_weight`) to the same device and namespace as `X`

  #28668 commented on Jul 10, 2025 • 0 new comments

• AI tools like Copilot Coding Agent don't know about / don't respect our Automated Contributions Policy

  #31679 commented on Jul 10, 2025 • 0 new comments

• Math not rendered in downloaded documentation when offline

  #20951 commented on Jul 11, 2025 • 0 new comments

• Adding more functionality to DecisionBoundaryDisplay

  #27462 commented on Jul 12, 2025 • 0 new comments

• ⚠️ CI failed on Ubuntu_Atlas.ubuntu_atlas (last failure: Feb 19, 2025) ⚠️

  #27846 commented on Jul 14, 2025 • 0 new comments

• ⚠️ CI failed on Linux.pymin_conda_forge_openblas_min_dependencies (last failure: Jan 19, 2025) ⚠️

  #29909 commented on Jul 14, 2025 • 0 new comments

• ⚠️ CI failed on Linux_Docker.debian_32bit (last failure: Apr 19, 2025) ⚠️

  #29802 commented on Jul 14, 2025 • 0 new comments

• Refactor `_convert_container`

  #28681 commented on Jul 13, 2025 • 0 new comments

• ENH add ARPACK solver to `IncrementalPCA` to avoid densifying sparse data

  #29512 commented on Jul 13, 2025 • 0 new comments

• ENH Array API support for confusion_matrix

  #30440 commented on Jul 11, 2025 • 0 new comments