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DOC: Add versionadded markers for anti joins

Docs

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62962

#62962 In pandas-dev/pandas;

· by phofl was closed on Nov 6, 2025

· 

3.0

BUG: Fix sorting behavior of DataFrame.join on list arguments

Bug

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Sortinge.g. sort_index, sort_valuese.g. sort_index, sort_values

Status: Merged (completed).

pandas-dev/pandasnumber 62954

#62954 In pandas-dev/pandas;

· by rhshadrach was closed on Nov 4, 2025

· 

3.0

PERF: Avoid deep copies when casting dtypes in merge

PerformanceMemory or execution speed performanceMemory or execution speed performance

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62902

#62902 In pandas-dev/pandas;

· by phofl was closed on Oct 29, 2025

· 

3.0

BUG: concat([ints, bools]) incorrect casting

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62889

#62889 In pandas-dev/pandas;

· by jbrockmendel was closed on Oct 28, 2025

· 

3.0

DEPR/BUG: Do not ignore sort in concat for DatetimeIndex

Bug

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62843

#62843 In pandas-dev/pandas;

· by rhshadrach was closed on Nov 5, 2025

Improve error reporting when merge validation fails

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

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62837

#62837 In pandas-dev/pandas;

· by phofl was closed on Oct 25, 2025

· 

3.0

TST: Add test DataFrame.join with CategoricalIndex

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62812

#62812 In pandas-dev/pandas;

· by matiaslindgren was closed on Nov 1, 2025

· 

3.0

DOC: Additional "merge_asof" Docs Explaination

Docs

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62753

#62753 In pandas-dev/pandas;

· by zephyrieal was closed on Oct 27, 2025

· 

3.0

BUG: Do not ignore sort in concat for DatetimeIndex

DatetimeDatetime data dtypeDatetime data dtype

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Closed (abandoned).

pandas-dev/pandasnumber 62752

#62752 In pandas-dev/pandas;

· by rhshadrach was closed on Oct 25, 2025

BUG: Merge fails on pyarrow datetime columns

Arrowpyarrow functionalitypyarrow functionality

Bug

DatetimeDatetime data dtypeDatetime data dtype

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Closed (abandoned).

pandas-dev/pandasnumber 62356

#62356 In pandas-dev/pandas;

· by 13muskanp was closed on Oct 6, 2025

BUG: fix error when unstacking with <code>sort=False</code> when indexes contains <code>NA</code>

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62334

#62334 In pandas-dev/pandas;

· by Alvaro-Kothe was closed on Sep 15, 2025

· 

3.0

BUG: merge with CategoricalDtype RecursionError

CategoricalCategorical Data TypeCategorical Data Type

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 62282

#62282 In pandas-dev/pandas;

· by jbrockmendel was closed on Sep 8, 2025

· 

3.0