.. _whatsnew_212:

What's new in 2.1.2 (October ??, 2023)
---------------------------------------

These are the changes in pandas 2.1.2. See :ref:`release` for a full changelog
including other versions of pandas.

{{ header }}

.. ---------------------------------------------------------------------------
.. _whatsnew_212.regressions:

Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed bug in :meth:`DataFrame.resample` where bin edges were not correct for :class:`~pandas.tseries.offsets.MonthBegin` (:issue:`55271`)
- Fixed bug where PDEP-6 warning about setting an item of an incompatible dtype was being shown when creating a new conditional column (:issue:`55025`)
- Fixed regression in :meth:`DataFrame.join` where result has missing values and dtype is arrow backed string (:issue:`55348`)

.. ---------------------------------------------------------------------------
.. _whatsnew_212.bug_fixes:

Bug fixes
~~~~~~~~~
- Fixed bug in :meth:`Categorical.equals` if other has arrow backed string dtype (:issue:`55364`)
- Fixed bug in :meth:`DataFrame.__setitem__` not inferring string dtype for zero-dimensional array with ``infer_string=True`` (:issue:`55366`)
- Fixed bug in :meth:`DataFrame.idxmin` and :meth:`DataFrame.idxmax` raising for arrow dtypes (:issue:`55368`)
- Fixed bug in :meth:`DataFrame.interpolate` raising incorrect error message (:issue:`55347`)
- Fixed bug in :meth:`DataFrame.resample` not respecting ``closed`` and ``label`` arguments for :class:`~pandas.tseries.offsets.BusinessDay` (:issue:`55282`)
- Fixed bug in :meth:`DataFrame.resample` where bin edges were not correct for :class:`~pandas.tseries.offsets.BusinessDay` (:issue:`55281`)
- Fixed bug in :meth:`Index.insert` raising when inserting ``None`` into :class:`Index` with ``dtype="string[pyarrow_numpy]"`` (:issue:`55365`)
- Fixed bug in :meth:`Series.all`  and :meth:`Series.any` not treating missing values correctly for ``dtype="string[pyarrow_numpy]"`` (:issue:`55367`)
- Fixed bug in :meth:`Series.rank` for ``string[pyarrow_numpy]`` dtype (:issue:`55362`)
- Silence ``Period[B]`` warnings introduced by :issue:`53446` during normal plotting activity (:issue:`55138`)
-

.. ---------------------------------------------------------------------------
.. _whatsnew_212.other:

Other
~~~~~
- Fixed non-working installation of optional dependency group ``output_formatting``. Replacing underscore ``_`` with a dash ``-`` fixes broken dependency resolution. A correct way to use now is ``pip install pandas[output-formatting]``.
-

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.. _whatsnew_212.contributors:

Contributors
~~~~~~~~~~~~