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Commits on May 1, 2026
CLN: fill in placeholder GH refs in test comments (#65434)
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jbrockmendel
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CI: lowercase types-pymysql/types-pyyaml to fix mamba 2.6.0 shard lookup (#65430)
jbrockmendel
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Commits on Apr 30, 2026
DOC: fix name of Bamboo weekly author (#65426)
jorisvandenbossche
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REF: drop freq attribute from DTA/TDA arrays (GH-24566) (#65429)
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CLN: drop stale FIXME for closed pyperclip#55 in clipboard module (#65421)
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CLN: remove dead JoinUnit._is_valid_na_for code in internals.concat (#65417)
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CLN: Replace stale 0.10.1 FIXME in use_dynamic_x (#65416)
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CI: explicitly ignore .pixi/ for update workflow (#65424)
jorisvandenbossche
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DOC: fix source link for classes in the reference docs (#65399)
jorisvandenbossche
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3d131ad
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BUG: fix numpy ufuncs (e.g. np.isnan) raising TypeError on pyarrow dtypes with distinguish_nan_and_na enabled (#65041)
jbrockmendel
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660c072
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BUG: `DataFrame.agg` with list-like funcs reintroduces filtered columns as `NaN` with `numeric_only=True` (#65219)
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68ddc67
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Commits on Apr 29, 2026
PERF: restore libjoin fastpath for CategoricalIndex intersection/union (#65176)
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DOC: clarify pickle compatibility is only within major versions (#64960)
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REF: add ExtensionArray._groupby_quantile method (#64831)
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REF: relocate _freq storage from DTA/TDA arrays to Index (GH#24566) (#65322)
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DOC: clarify resolution-dependence of Timestamp/Timedelta min/max/resolution (#65339)
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CLN: only try to normalize pytz in index when pytz is installed (#65411)
jorisvandenbossche
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39a17f5
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PERF: branchless calendar algorithms and batch field extractors (#64662)
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BUG: Preserve nullable index dtype in `_transform_index` (#65316)
gautamvarmadatla
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16cddde
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DOC: drop stale "experimental" notes and fix tab-completion list (#65385)
jbrockmendel
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18aedcb
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PERF: pass how=left to _factorize_keys in _left_join_on_index (#65160) (#65199)
iabhi4
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8496174
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Commits on Apr 28, 2026
CI: pin pyodide-build to fix venv pip wrapper crash (#65403)
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d4d1611
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DEPR: followup warn on .at setitem when a new column expands the frame (#65354)
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DOC: document TextFileReader in the API reference (#65341)
jbrockmendel
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c85684c
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PERF: speed up read_sas for full-precision numeric columns (#65363)
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53be332
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TST: assert pyarrow's quoting ValueError instead of xfailing (#65402)
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c8aa10c
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TYP: tighten Timestamp/Timedelta round/floor/ceil return types (#65383)
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4e205dd
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PERF: Speed up Timedelta.total_seconds (#65388)
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CLN: remove _offset_map cache in offsets.pyx (#65390)
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BUG: infer_dtype treats pd.NA as a generic null in TemporalValidator (#65391)
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CLN: point cython3 TODOs at upstream cython#2485 (#65387)
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CLN: drop stale FIXME in ObjectStringArrayMixin._str_map (#65394)
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jbrockmendel
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BUG: prevent using numexpr 2.10 with newer numpy to avoid silent wrong results (#65400)
jorisvandenbossche
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6401071
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Parquet IO: also use zoneinfo timezones by default even when pyarrow uses pytz (#65134)
jorisvandenbossche
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9eb6685
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CLN: remove stale cython3 conditional-nogil TODO in rank_sorted_1d (#65392)
jbrockmendel
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