What’s new in 2.1.4 (December 8, 2023)#
These are the changes in pandas 2.1.4. See Release notes for a full changelog including other versions of pandas.
Fixed regressions#
Bug fixes#
Bug in
Series
constructor raising DeprecationWarning whenindex
is a list ofSeries
(GH 55228)Bug in
Series
when trying to cast date-like string inputs toArrowDtype
ofpyarrow.timestamp
(GH 56266)Bug in
Timestamp
construction withts_input="now"
orts_input="today"
giving a different unit fromTimestamp.now()
orTimestamp.today()
(GH 55879)Bug in
Index.__getitem__()
returning wrong result for Arrow dtypes and negative stepsize (GH 55832)Fixed bug in
read_csv()
not respecting object dtype wheninfer_string
option is set (GH 56047)Fixed bug in
to_numeric()
converting to extension dtype forstring[pyarrow_numpy]
dtype (GH 56179)Fixed bug in
DataFrameGroupBy.min()
andDataFrameGroupBy.max()
not preserving extension dtype for empty object (GH 55619)Fixed bug in
DataFrame.__setitem__()
castingIndex
with object-dtype to PyArrow backed strings wheninfer_string
option is set (GH 55638)Fixed bug in
DataFrame.to_hdf()
raising when columns haveStringDtype
(GH 55088)Fixed bug in
Index.insert()
casting object-dtype to PyArrow backed strings wheninfer_string
option is set (GH 55638)Fixed bug in
Series.__ne__()
resulting in False for comparison betweenNA
and string value fordtype="string[pyarrow_numpy]"
(GH 56122)Fixed bug in
Series.mode()
not keeping object dtype wheninfer_string
is set (GH 56183)Fixed bug in
Series.reset_index()
not preserving object dtype wheninfer_string
is set (GH 56160)Fixed bug in
Series.str.split()
andSeries.str.rsplit()
whenpat=None
forArrowDtype
withpyarrow.string
(GH 56271)Fixed bug in
Series.str.translate()
losing object dtype when string option is set (GH 56152)
Contributors#
A total of 12 people contributed patches to this release. People with a “+” by their names contributed a patch for the first time.
Daniel Isaac
Joris Van den Bossche
Luke Manley
Lumberbot (aka Jack)
Marco Edward Gorelli
Matthew Roeschke
Pandas Development Team
Patrick Hoefler
Thomas Li
William Ayd
Yao Xiao
pre-commit-ci[bot]