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Deprecate n_jobs in LogisticRegression and evaluate multi-threading

API

Needs BenchmarksA tag for the issues and PRs which require some benchmarksA tag for the issues and PRs which require some benchmarks

Status: Open.

#32162 In scikit-learn/scikit-learn;

· jeremiedbb opened on Sep 11, 2025

Add an option to OrdinalEncoder to sort encoding by decreasing frequencies

Needs Decision - Include FeatureRequires decision regarding including featureRequires decision regarding including feature

New Feature

Status: Open.

#32161 In scikit-learn/scikit-learn;

· ogrisel opened on Sep 11, 2025

ColumnTransformer.fit() fails on polars.DataFrame: AttributeError: 'DataFrame' object has no attribute 'size'

Bug

Status: Open.

#32155 In scikit-learn/scikit-learn;

· ph-ll-pp opened on Sep 11, 2025

GridSearchCV cannot obtain the optimal parameter results.

Bug

Needs Info

Needs Reproducible CodeIssue requires reproducible codeIssue requires reproducible code

Status: Open.

#32154 In scikit-learn/scikit-learn;

· SunYong0821 opened on Sep 11, 2025

Allow <code>categories</code> parameter in <code>OrdinalEncoder</code> to accept a dict of column names → categories

New Feature

Status: Open.

#32152 In scikit-learn/scikit-learn;

· joaosferreira opened on Sep 10, 2025

Unexpected behavior of the HTML repr of meta-estimators

Documentation

frontend

Status: Open.

#32146 In scikit-learn/scikit-learn;

· jeremiedbb opened on Sep 10, 2025

[ENH] Adding KModes and KPrototypes clustering algorithms

module:cluster

Needs Decision - Include FeatureRequires decision regarding including featureRequires decision regarding including feature

New Feature

Status: Open.

#32115 In scikit-learn/scikit-learn;

· samedley-dev opened on Sep 5, 2025

RFC Deprecate FeatureUnion and make_union

API

module:compose

module:pipeline

RFC

Status: Open.

#32112 In scikit-learn/scikit-learn;

· jeremiedbb opened on Sep 5, 2025

Optimize Performance of SGDOptimizer and AdamOptimizer with Vectorized Operations

module:neural_network

Needs BenchmarksA tag for the issues and PRs which require some benchmarksA tag for the issues and PRs which require some benchmarks

Performance

Status: Open.

#32110 In scikit-learn/scikit-learn;

· codeMaestro78 opened on Sep 5, 2025

Add inner max_iter or a smart automatic setting to Lasso inside graphical lasso

API

Enhancement

module:covariance

module:linear_model

Needs DecisionRequires decisionRequires decision

Status: Open.

#32109 In scikit-learn/scikit-learn;

· lorentzenchr opened on Sep 5, 2025

FeatureUnion with polars output can error due to duplicate column names

Bug

Status: Open.

#32104 In scikit-learn/scikit-learn;

· jeromedockes opened on Sep 4, 2025

DecisionTreeRegressor with absolute error criterion: non-optimal split

Bug

Status: Open.

#32099 In scikit-learn/scikit-learn;

· cakedev0 opened on Sep 3, 2025