Skip to content
New issue

3.0

Open
No due date
Last updated Jun 2, 2025
97% complete

List view

0 issues of 37 selected

  • API: Breaking Changes in 3.0 (without deprecations)

    API - ConsistencyInternal Consistency of API/Behavior
    DeprecateFunctionality to remove in pandas
    Master TrackerHigh level tracker for similar issues
    Status: Open.
    #44823 In pandas-dev/pandas;
    · jbrockmendel opened on Dec 8, 2021

  • DEPR: List of deprecations to be removed in 3.0

    DeprecateFunctionality to remove in pandas
    Master TrackerHigh level tracker for similar issues
    Status: Open.
    #50578 In pandas-dev/pandas;
    · datapythonista opened on Jan 5, 2023

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

    API Design
    Arrowpyarrow functionality
    StringsString extension data type and string data
    Status: Open.
    #54792 In pandas-dev/pandas;
    · jorisvandenbossche opened on Aug 28, 2023

  • DEPR (PDEP-7/CoW): deprecate and remove <code>copy</code> keyword (except in constructors)

    Copy / view semantics
    DeprecateFunctionality to remove in pandas
    Status: Open.
    #56022 In pandas-dev/pandas;
    · jorisvandenbossche opened on Nov 17, 2023

  • DEPR: object inference in to_stata

    DeprecateFunctionality to remove in pandas
    IO Stataread_stata, to_stata
    Stale
    Status: Open (in progress).
    pandas-dev/pandasnumber 56536
    #56536 In pandas-dev/pandas;
    · jbrockmendel opened on Dec 17, 2023

  • RLS: 3.0

    Release
    Status: Open.
    #57064 In pandas-dev/pandas;
    · datapythonista opened on Jan 25, 2024

  • DEPR: pd.concat special cases DatetimeIndex to sort even when sort=False

    DeprecateFunctionality to remove in pandas
    Needs DiscussionRequires discussion from core team before further action
    ReshapingConcat, Merge/Join, Stack/Unstack, Explode
    Sortinge.g. sort_index, sort_values
    Status: Open.
    #57335 In pandas-dev/pandas;
    · lukemanley opened on Feb 10, 2024

  • BUG: Incompatible dype warning when assigning boolean series with logical indexer

    Bug
    IndexingRelated to indexing on series/frames, not to indexes themselves
    PDEP6-relatedrelated to PDEP6 (not upcasting during setitem-like Series operations)
    Status: Open.
    #57338 In pandas-dev/pandas;
    · m0nzderr opened on Feb 10, 2024

  • Deprecate <code>future.no_silent_downcasting</code>

    DeprecateFunctionality to remove in pandas
    Status: Open.
    #57403 In pandas-dev/pandas;
    · phofl opened on Feb 13, 2024

  • BUG: FutureWarning when splitting a dataframe using <code>np.split</code>

    BlockerBlocking issue or pull request for an upcoming release
    Compatpandas objects compatability with Numpy or Python functions
    DeprecateFunctionality to remove in pandas
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #57351 In pandas-dev/pandas;
    · amanlai opened on Feb 11, 2024

  • BUG: groupby.agg should always agg

    API Design
    ApplyApply, Aggregate, Transform, Map
    Enhancement
    Groupby
    Needs DiscussionRequires discussion from core team before further action
    Status: Open (in progress).
    pandas-dev/pandasnumber 57706
    #57706 In pandas-dev/pandas;
    · rhshadrach opened on Mar 2, 2024

  • Potential regression induced by PR #56921

    PerformanceMemory or execution speed performance
    RegressionFunctionality that used to work in a prior pandas version
    WarningsWarnings that appear or should be added to pandas
    Status: Open.
    #57641 In pandas-dev/pandas;
    · DeaMariaLeon opened on Feb 27, 2024

  • API: Make <code>Series.array</code> a read-only NumpyExtensionEA when applicable

    Copy / view semantics
    Status: Open.
    #58007 In pandas-dev/pandas;
    · mroeschke opened on Mar 26, 2024

  • Potential regression induced by commit 924f246

    Output-Formatting__repr__ of pandas objects, to_string
    PerformanceMemory or execution speed performance
    RegressionFunctionality 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 "Refactored pandas_timedelta_to_timedeltastruct"

    Needs TriageIssue that has not been reviewed by a pandas team member
    PerformanceMemory or execution speed performance
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #57951 In pandas-dev/pandas;
    · DeaMariaLeon opened on Mar 21, 2024

  • API: timestamp resolution inference - default to one unit (if possible) instead of being data-dependent?

    DatetimeDatetime data dtype
    Non-Nanodatetime64/timedelta64 with non-nanosecond resolution
    Timestamppd.Timestamp and associated methods
    Status: Open.
    #58989 In pandas-dev/pandas;
    · jorisvandenbossche opened on Jun 12, 2024

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

    Non-Nanodatetime64/timedelta64 with non-nanosecond resolution
    Status: Open.
    #59031 In pandas-dev/pandas;
    · jorisvandenbossche opened on Jun 17, 2024

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

    Dtype ConversionsUnexpected or buggy dtype conversions
    IndexRelated to the Index class or subclasses
    StringsString extension data type and string data
    Status: Open.
    #60159 In pandas-dev/pandas;
    · jorisvandenbossche opened on Oct 31, 2024

  • BUG: inferring the future string dtype doesn't work for pyarrow's "large_string" type

    Arrowpyarrow functionality
    Bug
    StringsString extension data type and string data
    Status: Open.
    #54798 In pandas-dev/pandas;
    · jorisvandenbossche opened on Aug 28, 2023

  • Change default string storage from "python" to "pyarrow" (if installed) for for NA-variant of StringDtype

    API Design
    NA - MaskedArraysRelated to pd.NA and nullable extension arrays
    StringsString extension data type and string data
    Status: Open.
    #60287 In pandas-dev/pandas;
    · jorisvandenbossche opened on Nov 12, 2024

  • BLD: Drop Python 3.10 support

    BuildLibrary building on various platforms
    DependenciesRequired and optional dependencies
    Python 3.10
    Status: Open.
    #60059 In pandas-dev/pandas;
    · wirable23 opened on Oct 16, 2024

  • DOC (string dtype): update user guide page "Working with text data"

    Docs
    StringsString extension data type and string data
    Status: Open.
    #60348 In pandas-dev/pandas;
    · jorisvandenbossche opened on Nov 17, 2024

  • TST (string dtype): clean-up interpolate tests

    Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
    Stale
    StringsString extension data type and string data
    Testingpandas 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

  • BUG: groupby.agg with UDF changing pyarrow dtypes

    Bug
    Groupby
    pyarrow dtype retentionop with pyarrow dtype -> expect pyarrow result
    Stale
    Status: Open (in progress).
    pandas-dev/pandasnumber 59601
    #59601 In pandas-dev/pandas;
    · rhshadrach opened on Aug 25, 2024

  • BUG: Added deprecation warning to Timestamp constructor

    DeprecateFunctionality to remove in pandas
    Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
    Timestamppd.Timestamp and associated methods
    Status: Open (in progress).
    pandas-dev/pandasnumber 61149
    #61149 In pandas-dev/pandas;
    · j-hendricks opened on Mar 20, 2025
    •