What's new in 2.2.1 (February XX, 2024)

These are the changes in pandas 2.2.1. See :ref:`release` for a full changelog including other versions of pandas.

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Fixed regressions

Fixed regression in :func:`merge_ordered` raising TypeError for fill_method="ffill" and how="left" (:issue:`57010`)

Bug fixes

Bug in :meth:`api.types.is_datetime64_any_dtype` where a custom :class:`ExtensionDtype` would not return True for array-likes (:issue:`57055`)

Other

Contributors