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+++ b/doc/source/reference/c-api.array.rst
@@ -1949,6 +1949,8 @@ Broadcasting (multi-iterators)
Neighborhood iterator
---------------------
+.. versionadded:: 1.4.0
+
Neighborhood iterators are subclasses of the iterator object, and can be used
to iter over a neighborhood of a point. For example, you may want to iterate
over every voxel of a 3d image, and for every such voxel, iterate over an