Update doc/source/whatsnew/v1.6.0.rst

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
pandas-dev · Sep 21, 2022 · 55e9d40 · 55e9d40
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commit 55e9d40
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/source/whatsnew/v1.6.0.rst b/doc/source/whatsnew/v1.6.0.rst
@@ -115,7 +115,7 @@ See :ref:`install.dependencies` and :ref:`install.optional_dependencies` for mor
 
 Other API changes
 ^^^^^^^^^^^^^^^^^
-- :func:`factorize` and :func:`unique` preserve the original dtype when passed numpy timedelta64 or datetime64 with non-nanosecond resolution (:issue:`??`)
+- :func:`factorize` and :func:`unique` preserve the original dtype when passed numpy timedelta64 or datetime64 with non-nanosecond resolution (:issue:`48670`)
 -
 
 .. ---------------------------------------------------------------------------