23 Pull requests merged by 12 people

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

  #31932 merged Aug 31, 2025

• CI Use pytest-xdist in debian 32 build

  #32031 merged Aug 29, 2025

• DOC Use un-cropped image for thumbnails

  #32037 merged Aug 29, 2025

• MNT Add changelog README and PR checklist to PR template

  #32038 merged Aug 29, 2025

• DOC Build website with a Scikit-learn logo that is complete - not cropped

  #32017 merged Aug 29, 2025

• MNT fix typo and internal documentation in LinearModelLoss and Newton solver

  #32039 merged Aug 28, 2025

• DOC Add TargetEncoder to Categorical Feature Support example

  #32019 merged Aug 28, 2025

• MNT np.nan_to_num -> xpx.nan_to_num

  #32033 merged Aug 28, 2025

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

  #31956 merged Aug 28, 2025

• CI add codecov to GitHub Action workflow

  #31941 merged Aug 28, 2025

• DOC Add reference links to Bayesian Regression

  #32016 merged Aug 28, 2025

• CI Add Python 3.14 nightly wheels

  #32012 merged Aug 27, 2025

• Make standard scaler compatible to Array API

  #27113 merged Aug 27, 2025

• DOC: fix typos and formatting in README.rst

  #32015 merged Aug 26, 2025

• Customized dir method to recognize available_if decorator

  #31928 merged Aug 26, 2025

• ENH use np.cumsum directly instead of stable_cumsum for LLE

  #31996 merged Aug 25, 2025

• ENH use np.cumsum directly instead of stable_cumsum in AdaBoost

  #31995 merged Aug 25, 2025

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

  #32009 merged Aug 25, 2025

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

  #32006 merged Aug 25, 2025

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

  #32008 merged Aug 25, 2025

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

  #32007 merged Aug 25, 2025

• MNT Avoid DeprecationWarning in numpy-dev

  #32010 merged Aug 25, 2025

• MNT bump array-api-extra to v0.8.0

  #31993 merged Aug 25, 2025

17 Pull requests opened by 14 people

• Frisch-Newton Interior Point Solver for Quantile Regression without Penalization

  #32002 opened Aug 24, 2025

• DOC Clarify wording: chance level → non-informative baseline

  #32004 opened Aug 24, 2025

• ENH add gap safe screening rules to enet_coordinate_descent_multi_task

  #32014 opened Aug 25, 2025

• CI Run free-threaded test suite with pytest-run-parallel

  #32023 opened Aug 27, 2025

• DOC Rework Decision boundary of semi-supervised methods example

  #32024 opened Aug 27, 2025

• TST fix platform sensitive test: [all random seeds] test_float_precision

  #32035 opened Aug 28, 2025

• MNT: remove the `steps` attribute from _BaseComposition

  #32040 opened Aug 28, 2025

• ENH check t-SNE input are all finite

  #32041 opened Aug 28, 2025

• DEP deprecate LogisticRegression parameters penalty and C, introduce new regularization parameter alpha

  #32042 opened Aug 28, 2025

• MNT Improve error message when binary/multiclass sparse input to classification metrics

  #32047 opened Aug 29, 2025

• Deprecate use of `probability=True` in SVC and NuSVC

  #32050 opened Aug 29, 2025

• MNT Remove xfail now array-api-strict >2.3.1

  #32052 opened Aug 29, 2025

• DOC: Update a few invalid reference links

  #32053 opened Aug 30, 2025

• DOC: Clarify dcg_score with explicit formula and linear-gain note (fixes #32049)

  #32054 opened Aug 30, 2025

• DOC: Improve terminology clarity - change 'chance level' to 'prevalence baseline'

  #32057 opened Aug 30, 2025

• Fix doc formatting in ElasticNet and update _coordinate_descent

  #32058 opened Aug 30, 2025

• DOC improve docstring of LogisticRegression and LogisticRegressionCV

  #32059 opened Aug 30, 2025

8 Issues closed by 7 people

• Scikit-learn logo on the website is truncated

  #32011 closed Aug 29, 2025

• PyTorch tensor failed with SVM

  #32044 closed Aug 29, 2025

• ⚠️ CI failed on Linux_Nightly.pylatest_pip_scipy_dev (last failure: Aug 28, 2025) ⚠️

  #32022 closed Aug 29, 2025

• Failed to build scikit learn with cython.

  #32043 closed Aug 29, 2025

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

  #26711 closed Aug 26, 2025

• Inaccurate Attribute Listing with dir(obj) for Classes Using available_if Conditional Method Decorator

  #28558 closed Aug 26, 2025

• ⚠️ CI failed on Linux_Nightly.pylatest_pip_scipy_dev (last failure: Aug 25, 2025) ⚠️

  #32005 closed Aug 25, 2025

• `OrdinalEncoder` transformed validation dataset still contains null / missing values

  #32003 closed Aug 24, 2025

6 Issues opened by 5 people

• The dcg_score and ndcg_score documentation are hard to understand

  #32049 opened Aug 29, 2025

• Leiden Clustering

  #32048 opened Aug 29, 2025

• rendering of 'routing' note in the documentation

  #32046 opened Aug 29, 2025

• make sphinx directive about version more sklearn specific

  #32045 opened Aug 29, 2025

• Classification metrics don't seem to support sparse?

  #32036 opened Aug 28, 2025

• Setting weights on items when passing list of dicts to RandomizedSearchCV

  #32032 opened Aug 27, 2025

51 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 Aug 30, 2025 • 34 new comments

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

  #31695 commented on Aug 29, 2025 • 7 new comments

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

  #31951 commented on Aug 29, 2025 • 6 new comments

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

  #31829 commented on Aug 28, 2025 • 4 new comments

• Fix ValueError bug in PLSRegression

  #31972 commented on Aug 28, 2025 • 3 new comments

• Adapting step_size and sag updates for sample_weight

  #31837 commented on Aug 25, 2025 • 1 new comment

• Diabetes data should match the original source

  #31940 commented on Aug 25, 2025 • 0 new comments

• Correct precision at k

  #22431 commented on Aug 24, 2025 • 0 new comments

• DOC add Chen2024 AUPRC reference to user guide

  #29155 commented on Aug 30, 2025 • 0 new comments

• Added sample weight handling to BinMapper under HGBT

  #29641 commented on Aug 29, 2025 • 0 new comments

• ENH: Faster Eigen Decomposition For Isomap & KernelPCA

  #31247 commented on Aug 29, 2025 • 0 new comments

• FEA Implement classical MDS

  #31322 commented on Aug 25, 2025 • 0 new comments

• MNT Mark cython extensions as free-threaded compatible

  #31342 commented on Aug 29, 2025 • 0 new comments

• ENH Display fitted attributes in HTML representation

  #31442 commented on Aug 25, 2025 • 0 new comments

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

  #31543 commented on Aug 29, 2025 • 0 new comments

• Fix sample weight handling in SAG(A)

  #31675 commented on Aug 29, 2025 • 0 new comments

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

  #31856 commented on Aug 30, 2025 • 0 new comments

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

  #31892 commented on Aug 30, 2025 • 0 new comments

• FIX normalization in semi_supervised label_propagation

  #31924 commented on Aug 29, 2025 • 0 new comments

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

  #31948 commented on Aug 27, 2025 • 0 new comments

• CI Add link to changelog instructions

  #31954 commented on Aug 29, 2025 • 0 new comments

• FIX (HDBSCAN) : FutureWarning for copy parameter deprecation

  #31973 commented on Aug 26, 2025 • 0 new comments

• ENH add gap safe screening rules to sparse_ enet_coordinate_descent

  #31986 commented on Aug 28, 2025 • 0 new comments

• ENH add gap safe screening rules to enet_coordinate_descent_gram

  #31987 commented on Aug 28, 2025 • 0 new comments

• FIX get rid of stable_cumsum now that it is not used anymore

  #31997 commented on Aug 28, 2025 • 0 new comments

• FIX Remove casting warnings from Cython code

  #31998 commented on Aug 25, 2025 • 0 new comments

• A welcome bot

  #27340 commented on Aug 25, 2025 • 0 new comments

• Formula for dual gap of elastic net in coordinate descent solver

  #22836 commented on Aug 25, 2025 • 0 new comments

• Frisch-Newton Interior Point Solver for Quantile Regression

  #31708 commented on Aug 27, 2025 • 0 new comments

• FEA Add missing-value support to sparse splitter in RandomForest and ExtraTrees

  #29542 commented on Aug 27, 2025 • 0 new comments

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

  #31883 commented on Aug 27, 2025 • 0 new comments

• Implementing Divisive Analysis

  #31989 commented on Aug 27, 2025 • 0 new comments

• Array API support for CalibratedClassifierCV

  #31869 commented on Aug 27, 2025 • 0 new comments

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

  #31947 commented on Aug 27, 2025 • 0 new comments

• ClassifierChain does not accept NaN values even when base estimator supports them

  #29856 commented on Aug 27, 2025 • 0 new comments

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

  #31931 commented on Aug 28, 2025 • 0 new comments

• Add `covariance_estimator` to `QuadraticDiscriminantAnalysis`?

  #31899 commented on Aug 28, 2025 • 0 new comments

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

  #31885 commented on Aug 29, 2025 • 0 new comments

• Add sankey style confusion matrix visualization

  #31133 commented on Aug 29, 2025 • 0 new comments

• Upgrade free-threading CI to run with pytest-freethreaded instead of pytest-xdist

  #30007 commented on Aug 29, 2025 • 0 new comments

• a11y - scikit-learn docs accessibility audit and remediation

  #31965 commented on Aug 29, 2025 • 0 new comments

• Add a better implementation of Latent Dirichlet Allocation

  #31925 commented on Aug 29, 2025 • 0 new comments

• ValueError in PLSRegression.fit() with zero-variance predictor

  #31971 commented on Aug 29, 2025 • 0 new comments

• Revisit the "chance level" for the different displays

  #30352 commented on Aug 29, 2025 • 0 new comments

• RandomForest{Classifier,Regressor} split criterion documentation

  #27159 commented on Aug 30, 2025 • 0 new comments

• Path for Adopting the Array API spec

  #22352 commented on Aug 30, 2025 • 0 new comments

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

  #31912 commented on Aug 30, 2025 • 0 new comments

• ⚠️ CI failed on Ubuntu_Atlas.ubuntu_atlas (last failure: Aug 28, 2025) ⚠️

  #27846 commented on Aug 31, 2025 • 0 new comments

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

  #29802 commented on Aug 31, 2025 • 0 new comments

• ⚠️ CI failed on Linux.pymin_conda_forge_openblas_min_dependencies (last failure: Aug 20, 2025) ⚠️

  #29909 commented on Aug 31, 2025 • 0 new comments

• Different Results on ARM and x86 when using `RFECV(RandomForestClassifier())`

  #31988 commented on Aug 31, 2025 • 0 new comments