What's new in 2.1.3 (November ??, 2023)

These are the changes in pandas 2.1.3. See :ref:`release` for a full changelog including other versions of pandas.

Fixed regressions

Bug in :class:`Series` constructor raising DeprecationWarning when index is a list of :class:`Series` (:issue:`55228`)
Bug in :meth:`DatetimeIndex.diff` raising TypeError (:issue:`55080`)
Bug in :meth:`Index.isin` raising for Arrow backed string and None value (:issue:`55821`)

.. contributors:: v2.1.2..v2.1.3|HEAD