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Pull requests: pandas-dev/pandas
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REGR/PERF: Fix perf regression in _LocationIndexer._post_expansion_casting
Performance
Memory or execution speed performance
Regression
Functionality that used to work in a prior pandas version
BUG: fix sort_index with level keyword on single-level RangeIndex
#64387
opened Mar 3, 2026 by
jQuinRivero
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4 tasks
BUG: fix sort_index AssertionError with RangeIndex and level parameter
#64386
opened Mar 3, 2026 by
repeating
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PERF: Speed up DatetimeIndex field accessors with ZoneInfo timezones
#64377
opened Mar 3, 2026 by
shubhamgoel27
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4 tasks done
PERF: fix slow DatetimeIndex plotting for multiplied frequencies
#64376
opened Mar 3, 2026 by
shubhamgoel27
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4 tasks done
BUG: combine all implementations of kurtosis and skewness computations and align results with SciPy
#64366
opened Mar 2, 2026 by
Alvaro-Kothe
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8 of 9 tasks
2
TST: Use EA scalar instead of python scalar in
test_compare_scalar
#64365
opened Mar 2, 2026 by
Julian-Harbeck
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DOC: use docs version for stable source links
#64346
opened Feb 28, 2026 by
qicaiy
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3 of 7 tasks
BUG: Fix MultiIndex partial-key lookup when np.datetime64 indexes datetime.date level (GH#55969)
#64343
opened Feb 27, 2026 by
logiop
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BUG: Fix assert_frame_equal with check_dtype=False for pd.NA GH#61473
#64341
opened Feb 27, 2026 by
MounikaYerramsetti26
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3 of 7 tasks
BUG: Assigning pd.NA to StringDtype column causes "Unknown error: Wrapping .. failed" after pd.concat with PyArrow
#64339
opened Feb 27, 2026 by
kjmin622
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5 of 7 tasks
DOC: clarify Series.case_when condition-order semantics
#64336
opened Feb 27, 2026 by
LarytheLord
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DOC: explain read_csv/read_table float_precision behavior
#64335
opened Feb 27, 2026 by
LarytheLord
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DOC: clarify Index.union behavior with duplicates
#64334
opened Feb 27, 2026 by
LarytheLord
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DOC: clarify read_fwf filepath_or_buffer semantics
#64333
opened Feb 27, 2026 by
LarytheLord
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BUG: Regression with interpolate: "ValueError: window shape cannot be larger than input array shape"
Missing-data
np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Regression
Functionality that used to work in a prior pandas version
TST: regression test for HDFStore.select with non-sorted Categorical (GH#38131)
#64331
opened Feb 27, 2026 by
jbrockmendel
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1 task done
BUG: Fix df.query('abs(col) == [...]') membership rewrite (#31848)
#64327
opened Feb 26, 2026 by
arjunmenon17
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6 of 7 tasks
DOC: document non-inclusive slicing on DatetimeIndex
#64323
opened Feb 26, 2026 by
yoginlangalia
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3 tasks
DOC: clarify list-like conversion in DataFrame broadcasting behavior
#64321
opened Feb 26, 2026 by
LarytheLord
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DOC: clarify .loc Series-assignment alignment behavior
#64319
opened Feb 26, 2026 by
LarytheLord
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What’s not been updated in a month: updated:<2026-02-03.