16 Pull requests merged by 5 people

• ENH avoid copies of X in _alpha_grid for coordinate descent

  #31946 merged Aug 19, 2025

• ENH add sparse_matmul_to_dense

  #31952 merged Aug 19, 2025

• MNT update Cython 3.0.10 to 3.1.2

  #31905 merged Aug 18, 2025

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

  #31960 merged Aug 18, 2025

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

  #31961 merged Aug 18, 2025

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

  #31962 merged Aug 18, 2025

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

  #31918 merged Aug 18, 2025

• DOC: Fix formatting issues with bold font and backquote

  #31950 merged Aug 16, 2025

• MNT reduce test duration

  #31953 merged Aug 16, 2025

• TST/MNT clean up some tests in coordinate descent

  #31909 merged Aug 14, 2025

• TST fix test_dtype_preprocess_data

  #31935 merged Aug 13, 2025

• DOC relabel some PRs as efficiency

  #31934 merged Aug 13, 2025

• DOC Clean up Building from source instructions on macOS

  #31938 merged Aug 13, 2025

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

  #31906 merged Aug 13, 2025

• DEP PassiveAggressiveClassifier and PassiveAggressiveRegressor

  #29097 merged Aug 12, 2025

• DOC Improve wording in Getting Started page

  #31926 merged Aug 12, 2025

17 Pull requests opened by 12 people

• MNT remove PA_C from SGD and (re-) use eta0

  #31932 opened Aug 12, 2025

• FIX range (and default) of eta0 in SGD

  #31933 opened Aug 12, 2025

• WIP: Display the number of output features

  #31937 opened Aug 13, 2025

• ENH No limit on max_features for SelectFromModel

  #31939 opened Aug 13, 2025

• CI add codecov to GitHub Action workflow

  #31941 opened Aug 13, 2025

• Fix LabelEncoder set_output method availability

  #31943 opened Aug 13, 2025

• FIX: Clarify LabelEncoder does not support set_output

  #31944 opened Aug 13, 2025

• docs: minor typos fixed

  #31945 opened Aug 14, 2025

• FIX PowerTransformer: check_array shall be used for inverse_transform, not _check_input.

  #31948 opened Aug 14, 2025

• Add option to use strict xfail mode in `parametrize_with_checks`

  #31951 opened Aug 15, 2025

• CI Add link to changelog instructions

  #31954 opened Aug 15, 2025

• ENH speedup coordinate descent by avoiding calls to axpy in innermost loop

  #31956 opened Aug 16, 2025

• TST add test_multi_task_lasso_vs_skglm

  #31957 opened Aug 16, 2025

• ENH Add pos_label parameter to TargetEncoder #27342

  #31958 opened Aug 17, 2025

• DOC: Fix linting issues in LogisticRegression and RidgeClassifier docstrings

  #31959 opened Aug 17, 2025

• CI Temporary work-around for Windows wheels on Python 3.13

  #31964 opened Aug 18, 2025

• DOC: Update a link to Cython-related code

  #31967 opened Aug 19, 2025

9 Issues closed by 7 people

• sparse-sparse and sparse-dense dot product with dense output

  #516 closed Aug 19, 2025

• `_BaseEncoder` with boolean `categories_` that include `nan` fails on `transform` when `X` is boolean

  #29241 closed Aug 18, 2025

• Docs instructions for installing LLVM OpenMP with Homebrew may need updating

  #31930 closed Aug 13, 2025

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

  #31913 closed Aug 13, 2025

• DOC Update advanced installation instructions from macOS

  #29603 closed Aug 13, 2025

• Documentation improvement for macOS Homebrew libomp installation

  #31359 closed Aug 13, 2025

• Do we want to keep the Passive Agressive estimators?

  #15161 closed Aug 12, 2025

• HDBSCAN modifies input precomputed distance matrix

  #31907 closed Aug 12, 2025

• QuantileTransformer is incredibly slow

  #31901 closed Aug 12, 2025

6 Issues opened by 5 people

• ⚠️ CI failed on Linux.pylatest_pip_openblas_pandas (last failure: Aug 19, 2025) ⚠️

  #31968 opened Aug 19, 2025

• a11y - scikit-learn docs accessibility audit and remediation

  #31965 opened Aug 18, 2025

• ⚠️ CI failed on Wheel builder (last failure: Aug 19, 2025) ⚠️

  #31955 opened Aug 16, 2025

• UserWarning: X has feature names, but PowerTransformer was fitted without feature names

  #31947 opened Aug 14, 2025

• Diabetes data should match the original source

  #31940 opened Aug 13, 2025

• Allow common estimator checks to use `xfail_strict=True`

  #31931 opened Aug 12, 2025

46 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 add gap safe screening rules to enet_coordinate_descent

  #31882 commented on Aug 18, 2025 • 12 new comments

• FIX normalization in semi_supervised label_propagation

  #31924 commented on Aug 16, 2025 • 11 new comments

• FIX make sure _PassthroughScorer works with meta-estimators

  #31898 commented on Aug 13, 2025 • 11 new comments

• MNT refactoring in routing _MetadataRequester

  #31534 commented on Aug 15, 2025 • 3 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 14, 2025 • 2 new comments

• Customized dir method to recognize available_if decorator

  #31928 commented on Aug 19, 2025 • 1 new comment

• FIX Draw indices using sample_weight in Random Forests

  #31529 commented on Aug 13, 2025 • 1 new comment

• ENH add aligned numpy allocator

  #29846 commented on Aug 18, 2025 • 0 new comments

• add `feature_indices` param to `permutation_importance()`

  #30005 commented on Aug 18, 2025 • 0 new comments

• adding adaptive learning rate for minibatch k-means

  #30051 commented on Aug 13, 2025 • 0 new comments

• DOC improved plot_semi_supervised_newsgroups.py example

  #31104 commented on Aug 18, 2025 • 0 new comments

• ENH Add zero division handling to cohen_kappa_score

  #31172 commented on Aug 16, 2025 • 0 new comments

• ENH add sample_weight and fit_intercept to Cython enet_coordinate_descent

  #31375 commented on Aug 16, 2025 • 0 new comments

• DOC add links to plot_ridge_coeffs example

  #31454 commented on Aug 13, 2025 • 0 new comments

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

  #31543 commented on Aug 15, 2025 • 0 new comments

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

  #31564 commented on Aug 14, 2025 • 0 new comments

• DOC: Add example link to LogisticRegression docstring

  #31606 commented on Aug 16, 2025 • 0 new comments

• MNT Refactor and deprecate `get_metadata_routing` method in `_MetadataRequester`

  #31695 commented on Aug 17, 2025 • 0 new comments

• Adapting step_size and sag updates for sample_weight

  #31837 commented on Aug 13, 2025 • 0 new comments

• ENH Add a tooltip for the RocCurveDisplay

  #31860 commented on Aug 13, 2025 • 0 new comments

• DOC remove custom scorer from scratch from docs

  #31890 commented on Aug 18, 2025 • 0 new comments

• DOC add Pull Request checklist to template

  #31902 commented on Aug 12, 2025 • 0 new comments

• FEA add 'infrequent_if_exist' handle_unknown option to OrdinalEncoder

  #31910 commented on Aug 14, 2025 • 0 new comments

• Make `sklearn.metrics._scorer._MultimetricScorer` part of the public API

  #31540 commented on Aug 13, 2025 • 0 new comments

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

  #31810 commented on Aug 13, 2025 • 0 new comments

• Add `covariance_estimator` to `QuadraticDiscriminantAnalysis`?

  #31899 commented on Aug 14, 2025 • 0 new comments

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

  #229 commented on Aug 14, 2025 • 0 new comments

• Please provide option to set unknown_values during test time to same as encoded min_frequency in OrdinalEncoder(Infrequent categories)

  #27629 commented on Aug 14, 2025 • 0 new comments

• Frisch-Newton Interior Point Solver for Quantile Regression

  #31708 commented on Aug 15, 2025 • 0 new comments

• Revisit the "chance level" for the different displays

  #30352 commented on Aug 15, 2025 • 0 new comments

• Attribute docstring does not show properly when there is a property with the same name

  #31595 commented on Aug 16, 2025 • 0 new comments

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

  #26711 commented on Aug 17, 2025 • 0 new comments

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

  #31912 commented on Aug 18, 2025 • 0 new comments

• Adding more functionality to DecisionBoundaryDisplay

  #27462 commented on Aug 18, 2025 • 0 new comments

• pairwise_distances_argmin_min / ArgKMin64 is not thread-safe

  #31884 commented on Aug 18, 2025 • 0 new comments

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

  #31889 commented on Aug 18, 2025 • 0 new comments

• `_MultimetricScorer` deals with `_accept_sample_weights` inconsistently

  #31599 commented on Aug 18, 2025 • 0 new comments

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

  #27846 commented on Aug 19, 2025 • 0 new comments

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

  #29909 commented on Aug 19, 2025 • 0 new comments

• ⚠️ CI failed on Linux_Runs.pylatest_conda_forge_mkl (last failure: Aug 17, 2025) ⚠️

  #31904 commented on Aug 19, 2025 • 0 new comments

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

  #29802 commented on Aug 19, 2025 • 0 new comments

• Make standard scaler compatible to Array API

  #27113 commented on Aug 18, 2025 • 0 new comments

• DOC Rework ROC example with cross-validation

  #29611 commented on Aug 12, 2025 • 0 new comments

• MNT Parallel build of sphinx_gallery

  #29614 commented on Aug 16, 2025 • 0 new comments

• Added sample weight handling to BinMapper under HGBT

  #29641 commented on Aug 16, 2025 • 0 new comments

• Add array API support for Nystroem approximation

  #29661 commented on Aug 18, 2025 • 0 new comments