26 Pull requests merged by 19 people

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

  #31846 merged Jul 28, 2025

• 🔒 🤖 CI Update lock files for array-api CI build(s) 🔒 🤖

  #31845 merged Jul 28, 2025

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

  #31844 merged Jul 28, 2025

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

  #31843 merged Jul 28, 2025

• MNT Add _check_sample_weights to classification metrics

  #31701 merged Jul 27, 2025

• [MRG] BUG: enforce row-wise arg max of decision function=predicted class

  #15504 merged Jul 25, 2025

• API Replace y_pred with y_score in DetCurveDisplay

  #31764 merged Jul 25, 2025

• Add input validation to _basePCA.inverse_transform

  #29310 merged Jul 25, 2025

• ENH Add clip parameter to MaxAbsScaler

  #31790 merged Jul 25, 2025

• DOC Clarify 'ovr' as the default strategy in the SVM documentation

  #29651 merged Jul 25, 2025

• MNT Remove ColumnTransformer.remainder from get_metadata_routing if remainder is not another estimator

  #31826 merged Jul 25, 2025

• MNT Improve _check_array_api_dispatch docstring

  #31831 merged Jul 25, 2025

• FIX: Use context managers to safely close dataset files

  #31836 merged Jul 25, 2025

• TST fix check_array_api_input device check

  #31814 merged Jul 24, 2025

• Fix KernelPCA docstrings for transform functions to match PCA class docstrings.

  #31823 merged Jul 23, 2025

• Fix: Use float64 epsilon when clipping initial probabilities in GradientBoosting

  #31575 merged Jul 23, 2025

• Corrected broken link in documentation

  #31818 merged Jul 23, 2025

• DOC Increase prominence of starting from existing issues

  #31660 merged Jul 23, 2025

• DOC improve doc for _check_n_features and _check_feature_names and fix their usages

  #31585 merged Jul 22, 2025

• ENH: Add test for scale input finiteness validation"

  #31816 merged Jul 22, 2025

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

  #31800 merged Jul 22, 2025

• CI Use venv rather than virtualenv

  #31812 merged Jul 22, 2025

• CI Fix Azure install.sh bash regex match

  #31813 merged Jul 22, 2025

• DOC: Fix assume_centered parameter documentation in EmpiricalCovariance

  #31809 merged Jul 22, 2025

• Fix empty column check in ColumnTransformer to be compatible with pandas>=3

  #31807 merged Jul 22, 2025

• DOC fix metadata REQUESTER_DOC indentation

  #31805 merged Jul 22, 2025

12 Pull requests opened by 11 people

• MNT Consistently use relative imports

  #31817 opened Jul 22, 2025

• Fix uncomparable values in SimpleImputer tie-breaking strategy

  #31820 opened Jul 22, 2025

• Add FAQ entry about the spam label

  #31822 opened Jul 23, 2025

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

  #31829 opened Jul 24, 2025

• MNT/DOC Raise for `**fit_params` in `fit_transform` if not expected by `fit`

  #31830 opened Jul 24, 2025

• CI First step towards moving Azure CI to GHA

  #31832 opened Jul 24, 2025

• MNT Remove redundant mkdir calls

  #31833 opened Jul 24, 2025

• docs(cluster): enhance DBSCAN docstrings with clearer parameter guida…

  #31835 opened Jul 25, 2025

• Adapting step_size and sag updates for sample_weight

  #31837 opened Jul 25, 2025

• DOC: Clarify criterion is passes to the base estimators

  #31838 opened Jul 26, 2025

• docs: Added breast cancer dataset example to getting started guide

  #31839 opened Jul 26, 2025

• DOC Update the citation format to scikit-learn API

  #31841 opened Jul 27, 2025

15 Issues closed by 6 people

• pandas dtypes "boolean" not supported in classification target

  #17675 closed Jul 27, 2025

• type_of_target misclassifies count/ordinal regression targets as multiclass

  #31752 closed Jul 27, 2025

• OneVsRestClassifier when all estimators predict a sample belongs to the other classes

  #31224 closed Jul 25, 2025

• OneVsRestClassifier violates predict(X)==argmax(decision_function)

  #14124 closed Jul 25, 2025

• y_pred changed to y_true in RocCurveDisplay.from_predictions, but not in DetCurveDisplay.from_predictions

  #31761 closed Jul 25, 2025

• ENH Add clip parameter to MaxAbsScaler

  #31672 closed Jul 25, 2025

• Resource cleanup issues in dataset loaders: files opened but not closed.

  #31834 closed Jul 25, 2025

• Handle new `pd.StringDtype` that is coming in pandas 3

  #31808 closed Jul 23, 2025

• ⚠️ CI failed on Linux_Nightly.pylatest_pip_scipy_dev (last failure: Jul 22, 2025) ⚠️

  #31778 closed Jul 23, 2025

• EmpiricalCovariance user guide assume_centered tip incorrect

  #31705 closed Jul 22, 2025

• Proposal to add a native ShapleyValueExplainer to sklearn.inspection

  #31794 closed Jul 22, 2025

• (Perhaps) safer version of halving search

  #31608 closed Jul 22, 2025

• ⚠️ CI failed on Linux_Runs.pylatest_conda_forge_mkl (last failure: Jul 21, 2025) ⚠️

  #31799 closed Jul 22, 2025

• DOC metadata docstrings generator has wrong indentation

  #31804 closed Jul 22, 2025

• Bug: StackingRegressor serialization error with custom neural network regressors (TabTransformer, ANN, DNN)

  #31811 closed Jul 22, 2025

2 Issues opened by 2 people

• SkLearn IQR function

  #31840 opened Jul 27, 2025

• CI: Enable GitHub Actions App for ppc64le (Power architecture) support

  #31810 opened Jul 21, 2025

41 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.

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

  #31564 commented on Jul 28, 2025 • 37 new comments

• FEA add temperature scaling to `CalibratedClassifierCV`

  #31068 commented on Jul 28, 2025 • 22 new comments

• MNT refactor _rescale_data in linear models into _preprocess_data

  #31418 commented on Jul 28, 2025 • 13 new comments

• ENH Array API support for confusion_matrix

  #30562 commented on Jul 24, 2025 • 4 new comments

• TST use global_random_seed in `sklearn/linear_model/tests/test_logistic.py`

  #31362 commented on Jul 28, 2025 • 3 new comments

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

  #31543 commented on Jul 28, 2025 • 3 new comments

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

  #31737 commented on Jul 23, 2025 • 2 new comments

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

  #31695 commented on Jul 23, 2025 • 1 new comment

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

  #31177 commented on Jul 26, 2025 • 1 new comment

• `y`, and `groups` parameters to`StratifiedGroupKFold.split()` are optional

  #30742 commented on Jul 22, 2025 • 0 new comments

• DOC Fix kmeans elkan vs. lloyd performance #16976 by giving more details about the elkan optimization in k-means

  #30552 commented on Jul 28, 2025 • 0 new comments

• ENH Display fitted attributes in HTML representation

  #31442 commented on Jul 28, 2025 • 0 new comments

• MNT: mark FeatureHasher and HashingVectorizer with requires_fit=False…

  #31557 commented on Jul 23, 2025 • 0 new comments

• FIX Preserve y shape in TransformedTargetRegressor

  #31563 commented on Jul 23, 2025 • 0 new comments

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

  #31573 commented on Jul 25, 2025 • 0 new comments

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

  #31643 commented on Jul 24, 2025 • 0 new comments

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

  #31693 commented on Jul 22, 2025 • 0 new comments

• ENH Display Methods in HTML representation

  #31698 commented on Jul 28, 2025 • 0 new comments

• MNT Refactor `_average_weighted_percentile` to avoid double sort

  #31775 commented on Jul 24, 2025 • 0 new comments

• ENH Add pos_label parameter to TargetEncoder

  #31796 commented on Jul 26, 2025 • 0 new comments

• Fix ClassifierChain error message for multiclass-multioutput targets

  #31797 commented on Jul 22, 2025 • 0 new comments

• UX: Enhance the HTML displays

  #26595 commented on Jul 22, 2025 • 0 new comments

• SimpleImputer fails in "most_frequent" if incomparable types only if ties

  #31717 commented on Jul 23, 2025 • 0 new comments

• RFC adopt narwhals for dataframe support

  #31049 commented on Jul 23, 2025 • 0 new comments

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

  #30921 commented on Jul 23, 2025 • 0 new comments

• 'Section Navigation' bar missing from stable documentation website on several pages

  #30309 commented on Jul 24, 2025 • 0 new comments

• TransformedTargetRegressor forces 1d y shape to regressor

  #26530 commented on Jul 24, 2025 • 0 new comments

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

  #26711 commented on Jul 24, 2025 • 0 new comments

• Gaussian Mixture - Implementing weighted sample

  #15647 commented on Jul 26, 2025 • 0 new comments

• RandomForest{Classifier,Regressor} split criterion documentation

  #27159 commented on Jul 26, 2025 • 0 new comments

• Allow batch based metrics calculation of sklearn.metrics

  #31554 commented on Jul 26, 2025 • 0 new comments

• FeatureHasher and HashingVectorizer does not expose requires_fit=False tag

  #30689 commented on Jul 27, 2025 • 0 new comments

• Making the extension contract stable through version upgrades

  #31728 commented on Jul 27, 2025 • 0 new comments

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

  #27846 commented on Jul 28, 2025 • 0 new comments

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

  #29909 commented on Jul 28, 2025 • 0 new comments

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

  #29802 commented on Jul 28, 2025 • 0 new comments

• Incorrect error message in `_check_sample_weight`

  #31712 commented on Jul 28, 2025 • 0 new comments

• FIX Adopted more direct `dtype` restraint in preperation for `NEP50`

  #23644 commented on Jul 27, 2025 • 0 new comments

• Add array API support for Nystroem approximation

  #29661 commented on Jul 27, 2025 • 0 new comments

• adding adaptive learning rate for minibatch k-means

  #30051 commented on Jul 22, 2025 • 0 new comments

• ENH : add_parameter to keep dim in TransformedTargetRegressor

  #30363 commented on Jul 22, 2025 • 0 new comments