Bug #1548891: The cStringIO.StringIO() constructor now encodes unicode
arguments with the system default encoding just like the write()
method does, instead of converting it to a raw buffer.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4a19fda..605b1d8 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -131,6 +131,10 @@
 Extension Modules
 -----------------
 
+- Bug #1548891: The cStringIO.StringIO() constructor now encodes unicode
+  arguments with the system default encoding just like the write()
+  method does, instead of converting it to a raw buffer.
+
 - Patch #1572724: fix typo ('=' instead of '==') in _msi.c.
 
 - Bug #1572832: fix a bug in ISO-2022 codecs which may cause segfault