What’s new in 1.4.4 (August 31, 2022)#
These are the changes in pandas 1.4.4. See Release notes for a full changelog including other versions of pandas.
Fixed regression in calling bitwise numpy ufuncs (for example,
np.bitwise_and) on Index objects (GH 46769)
Fixed regression in setting
Noneor non-string value into a
string-dtype Series using a mask (GH 47628)
Fixed regression in updating a DataFrame column through Series
__setitem__(using chained assignment) not updating column values inplace and using too much memory (GH 47172)
The minimum version of Cython needed to compile pandas is now
A total of 12 people contributed patches to this release. People with a “+” by their names contributed a patch for the first time.
Joris Van den Bossche
Marco Edward Gorelli
Nima Sarang +
Pandas Development Team
Xingrong Chen +