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BUG: DatetimeIndex.get_indexer(timestamp[pyarrow])

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62277 In pandas-dev/pandas;

· jbrockmendel opened on Sep 6, 2025

ENH: Make ExtensionDtype.numpy_dtype part of the interface?

Enhancement

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Open.

#62268 In pandas-dev/pandas;

· mroeschke opened on Sep 6, 2025

BUG: pd.json_normalize error when non-string keys are used in arguments

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62264 In pandas-dev/pandas;

· ybressler opened on Sep 5, 2025

PERF: cache interleaved_dtype in fast_xs

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

InternalsRelated to non-user accessible pandas implementationRelated to non-user accessible pandas implementation

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Open.

#62263 In pandas-dev/pandas;

· jbrockmendel opened on Sep 5, 2025

ENH: reading Parquet with PyArrrow : read_parquet equivalent of date_as_object=False

datetime.datestdlib datetime.date supportstdlib datetime.date support

Enhancement

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62262 In pandas-dev/pandas;

· simonaubertbd opened on Sep 5, 2025

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

· 

3.0

BUG: Incorrect Future warning using a logical operation between two pyarrow boolean series

Arrowpyarrow functionalitypyarrow functionality

Bug

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

Status: Open.

#62260 In pandas-dev/pandas;

· flori-ko opened on Sep 5, 2025

ERR: improve error message when specifying a previously-deprecated frequency alias

Error ReportingIncorrect or improved errors from pandasIncorrect or improved errors from pandas

FrequencyDateOffsetsDateOffsets

Status: Open.

#62259 In pandas-dev/pandas;

· jorisvandenbossche opened on Sep 5, 2025

· 

3.0

PERF: <code>DataFrame.unstack()</code> and <code>DataFrame.pivot_table()</code> upcasting take up more memory than needed

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Nullable by defaultIssues that would be addressed by moving to nullable-by-defaultIssues that would be addressed by moving to nullable-by-default

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Open.

#62244 In pandas-dev/pandas;

· pabloknecht opened on Sep 3, 2025

BUG: str.match and str.contains behave inconsistently on compiled regexps (regression in 2.3.2 relative to 2.3.1)

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

Bug

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

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

Status: Open.

#62240 In pandas-dev/pandas;

· sam-s opened on Sep 2, 2025

· 

2.3.3

BUG: writing categorical of intervals (pd.cut() output) to Parquet is not supported

IntervalInterval data typeInterval data type

IO Parquetparquet, featherparquet, feather

Status: Open.

#62235 In pandas-dev/pandas;

· jorisvandenbossche opened on Sep 2, 2025

API: <code>freq</code> or <code>step</code> for base class Index?

Status: Open.

#62219 In pandas-dev/pandas;

· jbrockmendel opened on Aug 29, 2025