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Pull requests: pandas-dev/pandas
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PERF: add an Arrow/NumPy hybrid groupby path for decimal and string types. Arrow pyarrow functionality Performance Memory or execution speed performance
#63416 opened Dec 18, 2025 by fangchenli • Draft updated Dec 18, 2025
4 of 6 tasks
DEP: Remove tzdata as a hard dependency outside of Windows Dependencies Required and optional dependencies
EA: add back _from_scalar / cast_pointwise_result backwards compat ExtensionArray Extending pandas with custom dtypes or arrays.
API: to_datetime(ints, unit) give requested unit Non-Nano datetime64/timedelta64 with non-nanosecond resolution Timestamp pd.Timestamp and associated methods
BUG: Fix dt64[non_nano] + some_offsets incorrectly rounding
#62383 opened Sep 19, 2025 by Aniketsy Loading… updated Dec 18, 2025
2 tasks
PERF: avoid NumPy fallback when casting Arrow int/string to string Arrow pyarrow functionality Performance Memory or execution speed performance
#63401 opened Dec 17, 2025 by fangchenli Loading… updated Dec 18, 2025
Replacing some of @Appender in pandas/pandas/core/frame.py. Docs
#63384 opened Dec 16, 2025 by zhangbowen-coder Loading… updated Dec 18, 2025
1 task done
Fix return type of
loc when key is slice #63413 opened Dec 18, 2025 by sanggon6107 Loading… updated Dec 18, 2025
4 of 6 tasks
BUG: Remove special-casing for date objects in DatetimeIndex indexing (GH#62158)
#62198 opened Aug 26, 2025 by Aniketsy Loading… updated Dec 18, 2025
BUG :Fix incorrect index length when ignore_index=True in series concat
#63409 opened Dec 18, 2025 by vkverma9534 • Draft updated Dec 18, 2025
DOC: Add documentation for pandas.api.typing.Expression (#63084) Stale
#63090 opened Nov 12, 2025 by pranavkp71 Loading… updated Dec 18, 2025
2 tasks done
ENH: Prevent filling in unstack() Stale
#63137 opened Nov 17, 2025 by mpak123 Loading… updated Dec 18, 2025
6 tasks done
Bump pypa/cibuildwheel from 3.2.1 to 3.3.0 Build Library building on various platforms CI Continuous Integration Dependencies Required and optional dependencies
#63134 opened Nov 17, 2025 by dependabot bot Loading… updated Dec 17, 2025
BUG: ensure to always return new objects in Index set operations (avoid metadata mutation) Bug Copy / view semantics Index Related to the Index class or subclasses setops union, intersection, difference, symmetric_difference
BUG: Fix deprecation warnings with option_context have incorrect stacklevel
#63312 opened Dec 9, 2025 by jsicard833 Loading… updated Dec 17, 2025
4 of 6 tasks
BUG: Fix to_html adding time to datetime columns in transposed DataFrame (GH#10640)
#63400 opened Dec 17, 2025 by epabarker Loading… updated Dec 17, 2025
API/CoW: take view of underlying Block values for shallow (deep=False) copies Copy / view semantics Stale
#58966 opened Jun 10, 2024 by jorisvandenbossche • Draft updated Dec 17, 2025
5 tasks
replaced all Appender、Substitution、doc decorators in pandas/pandas/core/frame.py.
#63357 opened Dec 14, 2025 by zhangbowen-coder Loading… updated Dec 17, 2025
1 task
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