Add whatsnew note

ABizzinotto · ABizzinotto · commit 74d398cdbe42 · 2023-10-15T19:10:08.000+03:00
diff --git a/doc/source/whatsnew/v2.1.2.rst b/doc/source/whatsnew/v2.1.2.rst
@@ -30,6 +30,7 @@ Bug fixes
 - Fixed bug in :meth:`Index.insert` raising when inserting ``None`` into :class:`Index` with ``dtype="string[pyarrow_numpy]"`` (:issue:`55365`)
 - Fixed bug in :meth:`Series.all`  and :meth:`Series.any` not treating missing values correctly for ``dtype="string[pyarrow_numpy]"`` (:issue:`55367`)
 - Fixed bug in :meth:`Series.rank` for ``string[pyarrow_numpy]`` dtype (:issue:`55362`)
+- Fixed bug in :meth:`Series.str.extractall` for ``string[pyarrow]`` dtype being converted to object (:issue:`53846`)
 - Silence ``Period[B]`` warnings introduced by :issue:`53446` during normal plotting activity (:issue:`55138`)
 -
 

Original file line number	Diff line number	Diff line change
`@@ -30,6 +30,7 @@ Bug fixes`
`30`	`30`	- Fixed bug in :meth:`Index.insert` raising when inserting ``None`` into :class:`Index` with ``dtype="string[pyarrow_numpy]"`` (:issue:`55365`)
`31`	`31`	- Fixed bug in :meth:`Series.all` and :meth:`Series.any` not treating missing values correctly for ``dtype="string[pyarrow_numpy]"`` (:issue:`55367`)
`32`	`32`	- Fixed bug in :meth:`Series.rank` for ``string[pyarrow_numpy]`` dtype (:issue:`55362`)
	`33`	+- Fixed bug in :meth:`Series.str.extractall` for ``string[pyarrow]`` dtype being converted to object (:issue:`53846`)
`33`	`34`	- Silence ``Period[B]`` warnings introduced by :issue:`53446` during normal plotting activity (:issue:`55138`)
`34`	`35`	`-`
`35`	`36`