What’s new in 1.2.4 (April 12, 2021)#

These are the changes in pandas 1.2.4. See Release notes for a full changelog including other versions of pandas.

Fixed regressions#

Fixed regression in DataFrame.sum() when min_count greater than the DataFrame shape was passed resulted in a ValueError (GH 39738)
Fixed regression in DataFrame.to_json() raising AttributeError when run on PyPy (GH 39837)
Fixed regression in (in)equality comparison of pd.NaT with a non-datetimelike numpy array returning a scalar instead of an array (GH 40722)
Fixed regression in DataFrame.where() not returning a copy in the case of an all True condition (GH 39595)
Fixed regression in DataFrame.replace() raising IndexError when regex was a multi-key dictionary (GH 39338)
Fixed regression in repr of floats in an object column not respecting float_format when printed in the console or outputted through DataFrame.to_string(), DataFrame.to_html(), and DataFrame.to_latex() (GH 40024)
Fixed regression in NumPy ufuncs such as np.add not passing through all arguments for DataFrame (GH 40662)

A total of 9 people contributed patches to this release. People with a “+” by their names contributed a patch for the first time.