Add versionchanged tag to faq (useless btw because changed text is commented out)
diff --git a/Doc/faq/library.rst b/Doc/faq/library.rst
index 8043460..6a2682f 100644
--- a/Doc/faq/library.rst
+++ b/Doc/faq/library.rst
@@ -224,6 +224,10 @@
and modify them for non-blocking mode. Since reading stdin when it is empty
results in an :exc:`OSError`, this error is caught and ignored.
+ .. versionchanged:: 3.3
+ *sys.stdin.read* used to raise :exc:`IOError`. Starting from Python 3.3
+ :exc:`IOError` is alias for :exc:`OSError`.
+
Threads
=======