diff --git a/Misc/NEWS b/Misc/NEWS
index 12d18af..01ca4d1 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -85,6 +85,8 @@
 - Issue #4005: Fixed a crash of pydoc when there was a zip file present in
   sys.path.
 
+- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
+
 Extension Modules
 -----------------