diff --git a/Misc/NEWS b/Misc/NEWS
index 1d943b0..efb6791 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,10 +10,14 @@
 Core and Builtins
 -----------------
 
+- Issue #8670: PyUnicode_AsWideChar() and PyUnicode_AsWideCharString() replace
+  UTF-16 surrogate pairs by single non-BMP characters for 16 bits Py_UNICODE
+  and 32 bits wchar_t (eg. Linux in narrow build).
+
 - Issue #10006: type.__abstractmethods__ now raises an AttributeError.
 
 - Issue #10003: Allow handling of SIGBREAK on Windows. Fixes a regression
-  introduced by issue #9324. 
+  introduced by issue #9324.
 
 - Issue #9979: Create function PyUnicode_AsWideCharString().