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RLS: 3.0

Release

Status: Open.

#57064 In pandas-dev/pandas;

· datapythonista opened on Jan 25, 2024

ENH/BUG: pd.date_range() still defaults to nanosecond resolution

Non-Nanodatetime64/timedelta64 with non-nanosecond resolutiondatetime64/timedelta64 with non-nanosecond resolution

Status: Open.

#59031 In pandas-dev/pandas;

· jorisvandenbossche opened on Jun 17, 2024

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

API / COW: ensure every new Series/DataFrame also has new (shallow copy) index

API Design

Copy / view semantics

Stale

Status: Draft (not ready).

pandas-dev/pandasnumber 53699

#53699 In pandas-dev/pandas;

· jorisvandenbossche opened on Jun 16, 2023

TST: assert reading of legacy pickles against current data

IO Pickleread_pickle, to_pickleread_pickle, to_pickle

Stale

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

Status: Open (in progress).

pandas-dev/pandasnumber 61792

#61792 In pandas-dev/pandas;

· jorisvandenbossche opened on Jul 7, 2025

BUG/API: round-tripping non-nano datetime64s with to_json/read_json

Bug

IO JSONread_json, to_json, json_normalizeread_json, to_json, json_normalize

Non-Nanodatetime64/timedelta64 with non-nanosecond resolutiondatetime64/timedelta64 with non-nanosecond resolution

Status: Open.

#55827 In pandas-dev/pandas;

· jbrockmendel opened on Nov 4, 2023

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

REF: Make _consolidate and _merge_blocks generators

RefactorInternal refactoring of codeInternal refactoring of code

Status: Open (in progress).

pandas-dev/pandasnumber 62973

#62973 In pandas-dev/pandas;

· mroeschke opened on Nov 3, 2025

Backport PR #62832 on branch 2.3.x (BUG: Recognize 2-tuple state without attrs dict)

Bug

Status: Open (in progress).

pandas-dev/pandasnumber 63046

#63046 In pandas-dev/pandas;

· meeseeksmachine opened on Nov 8, 2025

CI: Use manylinux_2_28 for 32 bit tests job

32bit32-bit systems32-bit systems

CIContinuous IntegrationContinuous Integration

Status: Open (in progress).

pandas-dev/pandasnumber 63066

#63066 In pandas-dev/pandas;

· mroeschke opened on Nov 10, 2025

TST: Fix assertion for TestSetitemNAPeriodDtype::expected

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

Status: Open (in progress).

pandas-dev/pandasnumber 63069

#63069 In pandas-dev/pandas;

· mroeschke opened on Nov 11, 2025

DOC: add storage and na_value to StringDtype reference page

Docs

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

Status: Open (in progress).

pandas-dev/pandasnumber 63104

#63104 In pandas-dev/pandas;

· jorisvandenbossche opened on Nov 13, 2025

BUG/API: cast to nanos before writing datetimes to JSON

Bug

DatetimeDatetime data dtypeDatetime data dtype

IO JSONread_json, to_json, json_normalizeread_json, to_json, json_normalize

Status: Open (in progress).

pandas-dev/pandasnumber 63100

#63100 In pandas-dev/pandas;

· jbrockmendel opened on Nov 12, 2025

BUG: define <code>__Pyx_PyUnstable_Object_IsUniqueReferencedTemporary</code> for python&lt;3.14

Bug

BuildLibrary building on various platformsLibrary building on various platforms

Status: Open (in progress).

pandas-dev/pandasnumber 63129

#63129 In pandas-dev/pandas;

· Alvaro-Kothe opened on Nov 16, 2025

TST: DataFrame.update preserves mixed dtypes

combine/combine_first/updateNDFrame.combine, combine_first, updateNDFrame.combine, combine_first, update

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

Status: Open (in progress).

pandas-dev/pandasnumber 63163

#63163 In pandas-dev/pandas;

· jfegg opened on Nov 20, 2025