Issue #3476: make BufferedReader and BufferedWriter thread-safe
diff --git a/Misc/NEWS b/Misc/NEWS
index 5349c55..70a06ff 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -48,6 +48,9 @@
Library
-------
+- Issue #3476: binary buffered reading through the new "io" library is now
+ thread-safe.
+
- Silence the DeprecationWarning of rfc822 when it is imported by mimetools
since mimetools itself is deprecated. Because modules are cached, all
subsequent imports of rfc822 will not raise a visible DeprecationWarning.