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Pull requests: pandas-dev/pandas
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Backport PR #53641: BUG: datetime64/timedelta64 with non-nanosecond resolution Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
pd.concat dataframes with different dateti… Non-Nano REGR: sort_index with ascending as list of boolean MultiIndex Regression Functionality that used to work in a prior pandas version
Backport PR #55764 on branch 2.1.x (REGR: fix return class in _constructor_from_mgr for simple subclasses) Regression Functionality that used to work in a prior pandas version Subclassing Subclassing pandas objects
REGR: fix return class in _constructor_from_mgr for simple subclasses Regression Functionality that used to work in a prior pandas version Subclassing Subclassing pandas objects
Backport PR #55691 on branch 2.1.x (REGR: fix read_parquet with column of large strings (avoid overflow from concat)) IO Parquet parquet, feather Regression Functionality that used to work in a prior pandas version
REGR: fix read_parquet with column of large strings (avoid overflow from concat) IO Parquet parquet, feather Regression Functionality that used to work in a prior pandas version
REGR: fix roundtripping datetimes with sqlite type detection IO SQL to_sql, read_sql, read_sql_query Regression Functionality that used to work in a prior pandas version
Backport PR #55586 on branch 2.1.x (REGR: Groupby methods not supporting numba raising TypeError when the…) Groupby numba numba-accelerated operations Regression Functionality that used to work in a prior pandas version
Backport PR #55670 on branch 2.1.x (REGR: merge_asof raising TypeError for "by" with datelike dtypes) Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
REGR: merge_asof raising TypeError for "by" with datelike dtypes Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
REGR: Groupby methods not supporting numba raising TypeError when the… Groupby numba numba-accelerated operations Regression Functionality that used to work in a prior pandas version
CoW: Use weakref callbacks to track dead references Regression Functionality that used to work in a prior pandas version Stale
#55539 by wangwillian0 was closed Aug 19, 2024 Loading…
4 of 5 tasks
CoW: Use exponential backoff when clearing dead references Copy / view semantics Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version
Backport PR #55473: TST: sort index with sliced MultiIndex MultiIndex Regression Functionality that used to work in a prior pandas version
REGR: sort index with sliced MultiIndex MultiIndex Regression Functionality that used to work in a prior pandas version
TST: sort index with sliced MultiIndex MultiIndex Regression Functionality that used to work in a prior pandas version
Backport PR #55077 on branch 2.1.x (Revert "BUG: Timestamp origin takes no effect in resample for 'MS' frequency (#53938)") Frequency DateOffsets Regression Functionality that used to work in a prior pandas version
Revert "BUG: Timestamp origin takes no effect in resample for 'MS' frequency (#53938)" Frequency DateOffsets Regression Functionality that used to work in a prior pandas version
Backport PR #55042 on branch 2.1.x (REGR: DataFrameGroupBy.agg with duplicate column names and a dict) Apply Apply, Aggregate, Transform, Map Bug Groupby Regression Functionality that used to work in a prior pandas version
REGR: DataFrameGroupBy.agg with duplicate column names and a dict Apply Apply, Aggregate, Transform, Map Bug Groupby Regression Functionality that used to work in a prior pandas version
Backport PR #54982 on branch 2.1.x (REG: filter not respecting the order of labels) Indexing Related to indexing on series/frames, not to indexes themselves Regression Functionality that used to work in a prior pandas version
Backport PR #54914 on branch 2.1.x (REGR: concat raising for 2 different ea dtypes) Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
Backport PR #54985 on branch 2.1.x (REGR: rountripping datetime through sqlite doesn't work) IO SQL to_sql, read_sql, read_sql_query Regression Functionality that used to work in a prior pandas version
REGR: rountripping datetime through sqlite doesn't work IO SQL to_sql, read_sql, read_sql_query Regression Functionality that used to work in a prior pandas version
REG: filter not respecting the order of labels Indexing Related to indexing on series/frames, not to indexes themselves Regression Functionality that used to work in a prior pandas version
ProTip! Updated in the last three days: updated:>2025-11-28.