What's new in 1.1.4 (??)

These are the changes in pandas 1.1.4. See :ref:`release` for a full changelog including other versions of pandas.

Fixed regressions

Fixed regression in :func:`read_csv` raising a ValueError when names was of type dict_keys (:issue:`36928`)
Fixed regression where attempting to mutate a :class:`DateOffset` object would no longer raise an AttributeError (:issue:`36940`)
Fixed regression where :meth:`DataFrame.agg` would fail with :exc:`TypeError` when passed positional arguments to be passed on to the aggregation function (:issue:`36948`).
Fixed regression in :class:`RollingGroupby` with sort=False not being respected (:issue:`36889`)
Fixed regression in :meth:`Series.astype` converting None to "nan" when casting to string (:issue:`36904`)
Fixed regression in :class:`RollingGroupby` causing a segmentation fault with Index of dtype object (:issue:`36727`)

Bug causing groupby(...).sum() and similar to not preserve metadata (:issue:`29442`)
Bug in :meth:`GroupBy.fillna` that caused a performance regression between 1.0.5 and 1.1.X (:issue:`36757`)

.. contributors:: v1.1.3..v1.1.4|HEAD