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API: consistent sanitize_array-wrapping for lists in arithmetic ops

Status: Open (in progress).

pandas-dev/pandasnumber 62552

#62552 In pandas-dev/pandas;

· jbrockmendel opened on Oct 2, 2025

· 

3.0

TRACKER: add support for Python 3.14

Master TrackerHigh level tracker for similar issuesHigh level tracker for similar issues

Python 3.14

Status: Open.

#62261 In pandas-dev/pandas;

· jorisvandenbossche opened on Sep 5, 2025

· 

3.1

BUG / API: setitem on pandas object fails if underlying numpy array is read-only

API Design

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

Status: Open.

#62144 In pandas-dev/pandas;

· jorisvandenbossche opened on Aug 19, 2025

· 

3.1

Moving to PyArrow dtypes by default

Arrowpyarrow functionalitypyarrow functionality

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

Status: Open.

#61618 In pandas-dev/pandas;

· datapythonista opened on Jun 9, 2025

TST (string dtype): clean-up interpolate tests

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

Stale

StringsString extension data type and string dataString extension data type and string data

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Open (in progress).

pandas-dev/pandasnumber 60653

#60653 In pandas-dev/pandas;

· jorisvandenbossche opened on Jan 3, 2025

· 

3.0

BUG/API: preserve dtype in Index <code>append()</code>

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

IndexRelated to the Index class or subclassesRelated to the Index class or subclasses

StringsString extension data type and string dataString extension data type and string data

Void Dtypedtype for no-data casesdtype for no-data cases

Status: Open.

#60159 In pandas-dev/pandas;

· jorisvandenbossche opened on Oct 31, 2024

· 

4.0

Potential regression induced by commit 924f246

Output-Formatting__repr__ of pandas objects, to_string__repr__ of pandas objects, to_string

PerformanceMemory or execution speed performanceMemory or execution speed performance

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Open.

#58285 In pandas-dev/pandas;

· rhshadrach opened on Apr 17, 2024

Potential regression induced by PR #56921

PerformanceMemory or execution speed performanceMemory or execution speed performance

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

WarningsWarnings that appear or should be added to pandasWarnings that appear or should be added to pandas

Status: Open.

#57641 In pandas-dev/pandas;

· DeaMariaLeon opened on Feb 27, 2024

· 

3.1

BUG: Pandas 2.2 breaks SQLAlchemy 1.4 compatibility

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DependenciesRequired and optional dependenciesRequired and optional dependencies

IO SQLto_sql, read_sql, read_sql_queryto_sql, read_sql, read_sql_query

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Open.

#57049 In pandas-dev/pandas;

· miraculixx opened on Jan 24, 2024

· 

2.3.4

BUG: FutureWarning about 'isin' where it is not used

Bug

expressionspd.eval, querypd.eval, query

WarningsWarnings that appear or should be added to pandasWarnings that appear or should be added to pandas

Status: Open.

#57028 In pandas-dev/pandas;

· workflowsguy opened on Jan 23, 2024

· 

2.3.4

Set up benchmarks server

BenchmarkPerformance (ASV) benchmarksPerformance (ASV) benchmarks

Status: Open.

#55007 In pandas-dev/pandas;

· datapythonista opened on Sep 5, 2023

TRACKER: new default String dtype (pyarrow-backed, numpy NaN semantics)

API Design

Arrowpyarrow functionalitypyarrow functionality

StringsString extension data type and string dataString extension data type and string data

Status: Open.

#54792 In pandas-dev/pandas;

· jorisvandenbossche opened on Aug 28, 2023

· 

3.1