diff --git a/Misc/NEWS b/Misc/NEWS
index 64e03a0..ac731c5 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@
 Core and Builtins
 -----------------
 
+- Issue #9738: Document PyErr_SetString() and PyErr_SetFromErrnoWithFilename()
+  encodings
+
 - ast.literal_eval() can now handle negative numbers.  It is also a little
   more liberal in what it accepts without compromising the safety of the
   evaluation.  For example, 3j+4 and 3+4+5 are both accepted.