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whats new bug fix
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doc/source/whatsnew/v2.2.0.rst

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@@ -188,6 +188,7 @@ Bug fixes
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~~~~~~~~~
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- Bug in :class:`AbstractHolidayCalendar` where timezone data was not propagated when computing holiday observances (:issue:`54580`)
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- Bug in :class:`pandas.core.window.Rolling` where duplicate datetimelike indexes are treated as consecutive rather than equal with ``closed='left'`` and ``closed='neither'`` (:issue:`20712`)
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- Bug in :class:`pandas.io.parsers.ArrowParserWrapper` where ``usecols`` wasn't working when using pyarrow to read a csv with no headers (:issue:`54459`)
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Categorical
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^^^^^^^^^^^

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