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Pull requests: pandas-dev/pandas
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PERF: Bypass chunking/validation logic in StringDtype__from_arrow__ Arrow pyarrow functionality Performance Memory or execution speed performance Strings String extension data type and string data
BUG: string methods with NA Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
API: Disallow NaN in StringArray constructor ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
REGR: Don't ignore compiled patterns in replace Regression Functionality that used to work in a prior pandas version replace replace method Strings String extension data type and string data
API (string dtype): implement hierarchy (NA > NaN, pyarrow > python) for consistent comparisons between different string dtypes API - Consistency Internal Consistency of API/Behavior Numeric Operations Arithmetic, Comparison, and Logical operations Strings String extension data type and string data
CLN: Enforce deprecation of not validating na argument to string methods Clean Error Reporting Incorrect or improved errors from pandas Strings String extension data type and string data
#62399 by rhshadrach was merged Oct 19, 2025 Loading…
5 tasks
BUG: pd.Series.replace does not preserve the original dtype Dtype Conversions Unexpected or buggy dtype conversions replace replace method Stale Strings String extension data type and string data
#33622 by kotamatsuoka was closed Sep 25, 2020 Loading…
3 of 5 tasks
Arrow string array dtype Strings String extension data type and string data
#36142 by TomAugspurger was closed Feb 19, 2021 Loading…
DEPR: Changing default of str.extract(expand=False) to str.extract(expand=True) Deprecate Functionality to remove in pandas Strings String extension data type and string data
Series.str.find fix for pd.ArrowDtype(pa.string()) Arrow pyarrow functionality Strings String extension data type and string data
String dtype: rename the storage options and add String extension data type and string data
na_value keyword in StringDtype() backported Strings BUG: Regression in astype not casting to bytes Regression Functionality that used to work in a prior pandas version Strings String extension data type and string data
Small improvements to str_cat Error Reporting Incorrect or improved errors from pandas Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
#12000 by hack-c was closed Feb 11, 2016 Loading…
[ArrowStringArray] API: StringArray -> ObjectStringArray API Design Stale Strings String extension data type and string data
#40962 by simonjayhawkins was closed Nov 28, 2021 • Draft
str_extract should work for timeseries, (GH6348) Bug Strings String extension data type and string data
PERF: increase performance of str_split when returning a frame Performance Memory or execution speed performance Strings String extension data type and string data
ENH: Implement cum* methods for PyArrow strings Arrow pyarrow functionality Enhancement Strings String extension data type and string data Transformations e.g. cumsum, diff, rank
Place the calculation of mask prior to the calls of comp in replace_list to improve performance Performance Memory or execution speed performance Strings String extension data type and string data
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