17 Pull requests merged by 12 people

• MNT instruct AI tools to not open pull requests in github PULL_REQUEST_TEMPLATE.md

  #31643 merged Aug 8, 2025

• ENH/DOC clearer sample weight validation error msg

  #31873 merged Aug 8, 2025

• ENH speedup enet_coordinate_descent_gram

  #31880 merged Aug 8, 2025

• DOC: Fix typo in _HTMLDocumentationLinkMixin docstring

  #31887 merged Aug 7, 2025

• CI First step towards moving Azure CI to GHA

  #31832 merged Aug 7, 2025

• DOC Improve wording in Categorical Feature support example

  #31864 merged Aug 6, 2025

• DOC Add vector quantization example to KBinsDiscretizer docs

  #31613 merged Aug 5, 2025

• Add FAQ entry about the spam label

  #31822 merged Aug 5, 2025

• Bump pypa/cibuildwheel from 3.0.0 to 3.1.2 in the actions group

  #31865 merged Aug 4, 2025

• Fix requires_fit tag for stateless FeatureHasher and HashingVectorizer

  #31851 merged Aug 4, 2025

• DOC Enhance DBSCAN docstrings with clearer parameter guidance and descriptions

  #31835 merged Aug 4, 2025

• ENH avoid double input validation in ElasticNet and Lasso

  #31848 merged Aug 4, 2025

• ENH Array API support for confusion_matrix

  #30562 merged Aug 4, 2025

• 🔒 🤖 CI Update lock files for main CI build(s) 🔒 🤖

  #31877 merged Aug 4, 2025

• 🔒 🤖 CI Update lock files for free-threaded CI build(s) 🔒 🤖

  #31876 merged Aug 4, 2025

• 🔒 🤖 CI Update lock files for scipy-dev CI build(s) 🔒 🤖

  #31875 merged Aug 4, 2025

• DOC add 2nd author to whatsnew of #31068 temperature scaling

  #31868 merged Aug 4, 2025

17 Pull requests opened by 12 people

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

  #31878 opened Aug 4, 2025

• ENH add gap safe screening rules to enet_coordinate_descent

  #31882 opened Aug 5, 2025

• Raise error logreg liblinear

  #31888 opened Aug 7, 2025

• DOC remove custom scorer from scratch from docs

  #31890 opened Aug 7, 2025

• FIX make scorer.repr work with a partial score_func

  #31891 opened Aug 7, 2025

• DOC: Clarify split threshold selection in RandomForest (#27159)

  #31892 opened Aug 7, 2025

• CI add ccache for GitHub Actions

  #31895 opened Aug 7, 2025

• FIX make sure _PassthroughScorer works with meta-estimators

  #31898 opened Aug 8, 2025

• CI Remove conda environment cache in CUDA CI

  #31900 opened Aug 8, 2025

• DOC add Pull Request checklist to template

  #31902 opened Aug 9, 2025

• Optimize OpenML dataset loading by eliminating redundant file reads

  #31903 opened Aug 9, 2025

• MNT update Cython 3.0.10 to 3.1.2

  #31905 opened Aug 9, 2025

• ENH/FIX stopping criterion for coordinate descent `tol <= gap`

  #31906 opened Aug 9, 2025

• docs: Add example demonstrating thread-safety issue with SVC(probability=True)

  #31908 opened Aug 9, 2025

• TST/MNT clean up some tests in coordinate descent

  #31909 opened Aug 9, 2025

• FEA add 'infrequent_if_exist' handle_unknown option to OrdinalEncoder

  #31910 opened Aug 9, 2025

• Update README.rst

  #31911 opened Aug 9, 2025

6 Issues closed by 3 people

• Making the extension contract stable through version upgrades

  #31728 closed Aug 8, 2025

• ⚠️ CI failed on Wheel builder (last failure: Aug 08, 2025) ⚠️

  #31896 closed Aug 8, 2025

• Incorrect error message in `_check_sample_weight`

  #31712 closed Aug 8, 2025

• SkLearn IQR function

  #31840 closed Aug 4, 2025

• Faster algorithm for KMeans

  #31870 closed Aug 4, 2025

• FeatureHasher and HashingVectorizer does not expose requires_fit=False tag

  #30689 closed Aug 4, 2025

11 Issues opened by 7 people

• ⚠️ CI failed on Linux_Nightly.pylatest_pip_scipy_dev (last failure: Aug 10, 2025) ⚠️

  #31913 opened Aug 10, 2025

• Stable extender contract via `fit` / `_fit` resp `predict` / `_predict` separation

  #31912 opened Aug 9, 2025

• HDBSCAN modifies input precomputed distance matrix

  #31907 opened Aug 9, 2025

• ⚠️ CI failed on Linux_Runs.pylatest_conda_forge_mkl (last failure: Aug 10, 2025) ⚠️

  #31904 opened Aug 9, 2025

• QuantileTransformer is incredibly slow

  #31901 opened Aug 8, 2025

• Add `covariance_estimator` to `QuadraticDiscriminantAnalysis`?

  #31899 opened Aug 8, 2025

• TunedThreasholdClassiffierCV not understanding `func(y_pred, y_true, ...)` as a valid `scoring`

  #31894 opened Aug 7, 2025

• We don't support `func(estimator, X, y, ...)` across the board as a scorer

  #31889 opened Aug 7, 2025

• `SVC(probability=True)` is not thread-safe

  #31885 opened Aug 6, 2025

• pairwise_distances_argmin_min / ArgKMin64 is not thread-safe

  #31884 opened Aug 6, 2025

• Fitting different instances of `LinearSVC` is not thread-safe

  #31883 opened Aug 6, 2025

52 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.

• DOC improved plot_semi_supervised_newsgroups.py example

  #31104 commented on Aug 8, 2025 • 12 new comments

• Added sample weight handling to BinMapper under HGBT

  #29641 commented on Aug 7, 2025 • 7 new comments

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

  #31177 commented on Aug 7, 2025 • 5 new comments

• FIX `LogisticRegressionCV.score` and `_BaseScorer` metadata routing

  #30859 commented on Aug 7, 2025 • 4 new comments

• FEA Group aware Time-based cross validation

  #16236 commented on Aug 8, 2025 • 4 new comments

• MNT refactoring in routing _MetadataRequester

  #31534 commented on Aug 7, 2025 • 4 new comments

• ENH Add a tooltip for the RocCurveDisplay

  #31860 commented on Aug 8, 2025 • 4 new comments

• BUG: Fix SGD models(SGDRegressor etc.) convergence criteria

  #31856 commented on Aug 4, 2025 • 4 new comments

• FEA Implement classical MDS

  #31322 commented on Aug 5, 2025 • 3 new comments

• Add stricter gradient check for log marginal likelihood in Gaussian Processes

  #31543 commented on Aug 4, 2025 • 3 new comments

• WIP Add function to convert array namespace and device to reference array

  #31829 commented on Aug 5, 2025 • 3 new comments

• Add Windows ARM64 GHA runner

  #31867 commented on Aug 5, 2025 • 2 new comments

• MNT Refactor get_metadata_routing method in MetadataRequest to directly use _get_metadata_request instead

  #31695 commented on Aug 6, 2025 • 2 new comments

• ENH Array API for `contingency_matrix`

  #29251 commented on Aug 7, 2025 • 2 new comments

• Refactor `_convert_container`

  #28681 commented on Aug 5, 2025 • 2 new comments

• Add support for bools in SimpleImputer

  #31730 commented on Aug 5, 2025 • 1 new comment

• [WIP] Add example for recommender system with ranking metrics

  #31531 commented on Aug 6, 2025 • 0 new comments

• FIX Draw indices using sample_weight in Random Forests

  #31529 commented on Aug 8, 2025 • 0 new comments

• ENH add sample_weight and fit_intercept to Cython enet_coordinate_descent

  #31375 commented on Aug 9, 2025 • 0 new comments

• ENH Adding a column to link each parameter docstring row in params table display

  #31564 commented on Aug 8, 2025 • 0 new comments

• Unbiased MDI-like feature importance measure for random forests

  #31279 commented on Aug 5, 2025 • 0 new comments

• Adapting step_size and sag updates for sample_weight

  #31837 commented on Aug 5, 2025 • 0 new comments

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

  #31573 commented on Aug 4, 2025 • 0 new comments

• ENH: Make brier_score_loss Array API compatible

  #31191 commented on Aug 5, 2025 • 0 new comments

• [MRG] DOC: add Visualization API ROC example link to model_evaluation

  #31591 commented on Aug 8, 2025 • 0 new comments

• FIX metadata routing for scorer

  #31654 commented on Aug 7, 2025 • 0 new comments

• ENH Display Methods in HTML representation

  #31698 commented on Aug 4, 2025 • 0 new comments

• FIX LogisticRegression warm start with newton-cholesky solver

  #31866 commented on Aug 10, 2025 • 0 new comments

• Array API support for CalibratedClassifierCV

  #31869 commented on Aug 4, 2025 • 0 new comments

• RandomForest{Classifier,Regressor} split criterion documentation

  #27159 commented on Aug 4, 2025 • 0 new comments

• Strange normalization of semi-supervised label propagation in `_build_graph`

  #31872 commented on Aug 4, 2025 • 0 new comments

• Proposal to Contribute Uncertainty Quantification via Aleatoric/Epistemic Decomposition to scikit-learn

  #31871 commented on Aug 4, 2025 • 0 new comments

• `FunctionTransformer` need `feature_names_out` even if `func` returns DataFrame

  #28780 commented on Aug 5, 2025 • 0 new comments

• DOC merging the examples related to OPTICS, DBSCAN, and HDBSCAN

  #29962 commented on Aug 5, 2025 • 0 new comments

• DOC Managing huntr security vulnerability reports

  #31657 commented on Aug 5, 2025 • 0 new comments

• Persistent UserWarning about KMeans Memory Leak on Windows Despite Applying Suggested Fixes

  #30921 commented on Aug 5, 2025 • 0 new comments

• Building interactive demos for examples

  #24878 commented on Aug 5, 2025 • 0 new comments

• Bad error messages in ClassifierChain on multioutput multiclass

  #13339 commented on Aug 6, 2025 • 0 new comments

• DOC Update wikipedia article for scikit-learn

  #30907 commented on Aug 7, 2025 • 0 new comments

• `_MultimetricScorer` deals with `_accept_sample_weights` inconsistently

  #31599 commented on Aug 7, 2025 • 0 new comments

• Pipeline score asks to explicitly request sample_weight

  #30937 commented on Aug 7, 2025 • 0 new comments

• Revisit the "chance level" for the different displays

  #30352 commented on Aug 8, 2025 • 0 new comments

• Allow batch based metrics calculation of sklearn.metrics

  #31554 commented on Aug 8, 2025 • 0 new comments

• AttributeError: This 'LabelEncoder' has no attribute 'set_output'

  #26711 commented on Aug 9, 2025 • 0 new comments

• ⚠️ CI failed on Ubuntu_Atlas.ubuntu_atlas (last failure: Aug 03, 2025) ⚠️

  #27846 commented on Aug 10, 2025 • 0 new comments

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

  #29909 commented on Aug 10, 2025 • 0 new comments

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

  #29802 commented on Aug 10, 2025 • 0 new comments

• Strong Rules / Gap Safe Screening for Discarding Predictors in Lasso-type Problems

  #229 commented on Aug 10, 2025 • 0 new comments

• DEP PassiveAggressiveClassifier and PassiveAggressiveRegressor

  #29097 commented on Aug 5, 2025 • 0 new comments

• Add array API support for Nystroem approximation

  #29661 commented on Aug 5, 2025 • 0 new comments

• Make the test suite itself thread-safe to be able to detect thread-safety problems with or without free-threading

  #30041 commented on Aug 8, 2025 • 0 new comments

• MultiOutputClassifier rely on estimator to provide pairwise tag

  #30236 commented on Aug 4, 2025 • 0 new comments