Add news entry

bswck · bswck · commit cf1da17c23e6 · 2025-10-17T15:29:12.000+02:00
diff --git a/Misc/NEWS.d/next/Library/2025-10-17-15-25-38.gh-issue-84644.eAEJXy.rst b/Misc/NEWS.d/next/Library/2025-10-17-15-25-38.gh-issue-84644.eAEJXy.rst
@@ -0,0 +1,4 @@
+A :exc:`TypeError` is raised by :py:func:`functools.singledispatch`
+if it is attempted to register function that only annotates its return type.
+
+Contributed by Bartosz Sławecki in :gh:`84644`.
