21 Pull requests merged by 9 people

• DOC/ENH: Holiday days_of_week value error

  #61658 merged Jun 17, 2025

• Fix some incorrect indents in development documentation

  #61664 merged Jun 17, 2025

• BUG: Fix RecursionError when apply native container types as a func

  #61615 merged Jun 16, 2025

• WEB: Reorganization of the Ecosystem page

  #61657 merged Jun 16, 2025

• ENH: Support for Orthodox Easter

  #61666 merged Jun 16, 2025

• fix std/var with complex array

  #61646 merged Jun 16, 2025

• DOC: Make the benchmarks URL clickable

  #61661 merged Jun 16, 2025

• WEB: Clean up Ecosystem page

  #61656 merged Jun 13, 2025

• WEB: Add table of contents to the Ecosystem

  #61655 merged Jun 13, 2025

• TST: Remove match= in test_setitem_invalid to avoid PytestWarning

  #61577 merged Jun 13, 2025

• [backport 2.3.x] TST: update xfail xarray version check in to_xarray test (#61648)

  #61652 merged Jun 13, 2025

• WEB: Replace os.path with pathlib.Path in pandas_web.py

  #61604 merged Jun 13, 2025

• DOC/ENH: Holiday exclusion argument

  #61600 merged Jun 13, 2025

• [backport 2.3.x] API (string dtype): implement hierarchy (NA > NaN, pyarrow > python) for consistent comparisons between different string dtypes (#61138)

  #61649 merged Jun 13, 2025

• CI: Fix slow mamba solver issue by limiting boto3 versions

  #61594 merged Jun 13, 2025

• TST: update xfail xarray version check in to_xarray test

  #61648 merged Jun 13, 2025

• [backport 2.3.x] ENH(string dtype): fallback for HDF5 with UTF-8 surrogates (#60993)

  #61639 merged Jun 13, 2025

• [backport 2.3.x] BUG(string dtype): groupby/resampler.min/max returns float on all NA strings (#60985)

  #61633 merged Jun 12, 2025

• [2.3.x] CI: temporarily pin numpy to 2.2 until latest numexpr is available

  #61638 merged Jun 12, 2025

• [backport 2.3.x] BUG(string dtype): Empty sum produces incorrect result (#60936)

  #61625 merged Jun 12, 2025

• [backport 2.3.x] API: ignore empty range/object dtype in Index setop operations (string dtype compat) (#60797)

  #60948 merged Jun 12, 2025

14 Pull requests opened by 11 people

• Fix void dtype handling

  #61637 opened Jun 12, 2025

• BUG: Fix GroupBy aggregate coersion of outputs inconsistency for pyarrow dtypes

  #61640 opened Jun 12, 2025

• ENH: Allow third-party packages to register IO engines

  #61642 opened Jun 12, 2025

• BUG: Add PyArrow datelike type support for `map()`

  #61644 opened Jun 13, 2025

• WEB: Moving maintainers to inactive (no answer from them)

  #61647 opened Jun 13, 2025

• feature #49580: support new-style float_format string in to_csv

  #61650 opened Jun 13, 2025

• feature #58141: Consistent naming conventions for string dtype aliases

  #61651 opened Jun 13, 2025

• [backport 2.3.x] CI: Fix slow mamba solver issue by limiting boto3 version (#61594)

  #61653 opened Jun 13, 2025

• DOC: Add release notes template for 2.3.1

  #61654 opened Jun 13, 2025

• BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values

  #61659 opened Jun 14, 2025

• Bump pypa/cibuildwheel from 2.23.3 to 3.0.0

  #61668 opened Jun 16, 2025

• CLN: Use dedup_names for column name mangling in Python parser (#50371)

  #61670 opened Jun 16, 2025

• DOC: Document two-issue limit for `take` command in contributing guide #61626

  #61673 opened Jun 17, 2025

• BUG: fix: `list` as index item does not raise

  #61674 opened Jun 17, 2025

12 Issues closed by 6 people

• BUG: cannot use registered float16 extension dtype

  #46111 closed Jun 18, 2025

• BUG: RecursionError when apply generic alias as a func

  #61565 closed Jun 16, 2025

• ENH: Support for Orthodox Easter

  #61665 closed Jun 16, 2025

• BUG: Incorrect guess_datetime_format response

  #61663 closed Jun 16, 2025

• BUG: `Series.std` and `Series.var` give incorrect results for complex values.

  #61645 closed Jun 16, 2025

• WEB: Add table of content for the Ecosystem page

  #61587 closed Jun 16, 2025

• BUG: regex match in compliance tests no longer match pytest expected inputs

  #61557 closed Jun 13, 2025

• DOC/ENH: `Holiday` documentation is missing or hard to find for re-arranged national holidays.

  #54382 closed Jun 13, 2025

• CI: Micromamba taking too long to resolve the environments in the CI

  #61531 closed Jun 13, 2025

• BUG: Boolean Series (actually object) with <NA> values breaks ~ negation and reverts to bit-wise operations

  #60049 closed Jun 13, 2025

• ENH: Infer column dtype when constructing object with pd.NA

  #58366 closed Jun 13, 2025

• BUG: Dangerous inconsistency: `~` operator changes behavior based on context outside a target.

  #61598 closed Jun 13, 2025

11 Issues opened by 11 people

• Incorrect rolling std() results on very large DataFrames

  #61677 opened Jun 18, 2025

• BUG: Implicit conversion to float64 with isin()

  #61676 opened Jun 18, 2025

• BUG: DataFrame.join(other) raises InvalidIndexError if column index is CategoricalIndex

  #61675 opened Jun 18, 2025

• BUG: np.nan to datetime assertionerror when too large datetime given

  #61671 opened Jun 16, 2025

• ENH: Switch to trusted publishing for package upload to PyPI in CI

  #61669 opened Jun 16, 2025

• BUG: pd.read_sql is incorrectly reading long int when connecting to Teradata

  #61667 opened Jun 16, 2025

• DOC: Improve documentation for DataFrame.__setitem__ and .loc assignment from Series

  #61662 opened Jun 15, 2025

• BUG: Type error supplying SQLAlchemy NVARCHAR length in to_sql()

  #61660 opened Jun 14, 2025

• BUG: replace value failed

  #61643 opened Jun 13, 2025

• BUG: `to_numeric` fails to convert a Pyarrow Decimal series containing NA values.

  #61641 opened Jun 12, 2025

• BUG: Groupby aggregate coersion of outputs inconsistency for pyarrow dtypes

  #61636 opened Jun 12, 2025

33 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• ENH: Implement DataFrame.select

  #61527 commented on Jun 13, 2025 • 17 new comments

• ExtensionArray.Round method and tests

  #54582 commented on Jun 18, 2025 • 2 new comments

• PDEP-18: Nullable Object Dtype

  #61599 commented on Jun 12, 2025 • 1 new comment

• Implemented NumbaExecutionEngine

  #61487 commented on Jun 19, 2025 • 1 new comment

• BUG: Fix Series.str.zfill for ArrowDtype string arrays #61485

  #61533 commented on Jun 16, 2025 • 1 new comment

• ENH: Support Plugin Accessors Via Entry Points

  #61499 commented on Jun 15, 2025 • 1 new comment

• [WIP] ENH: support reading directory in read_csv

  #61275 commented on Jun 19, 2025 • 0 new comments

• Fix alignment in Series subtraction with MultiIndex, Index and NaN values (#60908)

  #61381 commented on Jun 15, 2025 • 0 new comments

• ENH: Added `DataFrame.nsorted` to select top ``n`` rows according to column-dependent order

  #61457 commented on Jun 19, 2025 • 0 new comments

• BUG: Fixed issue where rolling.kurt() calculations would be effected by values outside of scope

  #61481 commented on Jun 17, 2025 • 0 new comments

• API: Replace na_action parameter in Series/DataFrame/Index.map by the standard skipna

  #61530 commented on Jun 13, 2025 • 0 new comments

• ENH pandas-dev#60693: shift operations for Series and DataFrames

  #61540 commented on Jun 18, 2025 • 0 new comments

• BUG: Fix Index.equals between object and string

  #61541 commented on Jun 14, 2025 • 0 new comments

• BUG: Require sample weights to sum to less than 1 when replace = True

  #61582 commented on Jun 14, 2025 • 0 new comments

• ENH: improve optional import error message

  #61597 commented on Jun 18, 2025 • 0 new comments

• BUG: to_stata erroring when encoded text and normal text have mismatched length

  #61629 commented on Jun 17, 2025 • 0 new comments

• Description of pandas_datetime_exec function.

  #61635 commented on Jun 16, 2025 • 0 new comments

• BUG: Fix #61221: Exception with unstack(sort=False) and NA in index.

  #61226 commented on Jun 16, 2025 • 0 new comments

• BUG: fix to_json on period

  #61203 commented on Jun 17, 2025 • 0 new comments

• BUG: Fix return type of loc/iloc

  #61054 commented on Jun 15, 2025 • 0 new comments

• BUG: Add fillna at the beginning of _where not to fill NA. #60729

  #60772 commented on Jun 14, 2025 • 0 new comments

• ENH: ExcelWriter append or create mode

  #61634 commented on Jun 18, 2025 • 0 new comments

• BUG: `pandas.Styler.__repr__` and `pandas.Styler.__str__` cause `nbconvert` failure to display data

  #55908 commented on Jun 17, 2025 • 0 new comments

• BUG: round not functioning as expected

  #55114 commented on Jun 17, 2025 • 0 new comments

• BUG: Writing UUIDs fail

  #61602 commented on Jun 16, 2025 • 0 new comments

• CLN: Use dedup_names in all instances where duplicate column names are renamed

  #50371 commented on Jun 16, 2025 • 0 new comments

• Use BaseExecutionEngine for Python and Numba engines

  #61458 commented on Jun 15, 2025 • 0 new comments

• FEEDBACK: PyArrow as a required dependency and PyArrow backed strings

  #54466 commented on Jun 14, 2025 • 0 new comments

• DOC: Pandas contributor take limit

  #61626 commented on Jun 14, 2025 • 0 new comments

• BUG: `Index.drop_duplicates()` is inconsistent for unhashable values

  #60925 commented on Jun 13, 2025 • 0 new comments

• Moving to PyArrow dtypes by default

  #61618 commented on Jun 13, 2025 • 0 new comments

• BUG: mix of int and pd.NA defaults to object dtype

  #33662 commented on Jun 13, 2025 • 0 new comments

• BUG: PerformanceWarning when agg with pd.NamedAgg and as_index=False

  #61628 commented on Jun 13, 2025 • 0 new comments