What's new in 1.2.1 (January ??, 2021)

These are the changes in pandas 1.2.1. See :ref:`release` for a full changelog including other versions of pandas.

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Fixed regressions

Fixed a regression in groupby().rolling() where :class:`MultiIndex` levels were dropped (:issue:`38523`)

Bug fixes

I/O

Bumped minimum fastparquet version to 0.4.0 to avoid AttributeError from numba (:issue:`38344`)
Bumped minimum pymysql version to 0.8.1 to avoid test failures (:issue:`38344`)

Other

Contributors

.. contributors:: v1.2.0..v1.2.1|HEAD