diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index 3d66d14..02f6ac1 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -836,6 +836,12 @@
 .. class:: Event()
 
    A clone of :class:`threading.Event`.
+   This method returns the state of the internal semaphore on exit, so it
+   will always return ``True`` except if a timeout is given and the operation
+   times out.
+
+   .. versionchanged:: 2.7
+      Previously, the method always returned ``None``.
 
 .. class:: Lock()