DOC: mark which version typing.Deque added

tacaswell · tacaswell · commit 5dd1ab098296 · 2017-02-13T08:22:58.000-05:00
diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
@@ -574,6 +574,8 @@ The module defines the following classes, functions and decorators:
 
    A generic version of :class:`collections.deque`.
 
+   .. versionadded:: 3.6.1
+
 .. class:: List(list, MutableSequence[T])
 
    Generic version of :class:`list`.
