diff --git a/Misc/NEWS b/Misc/NEWS
index 7817276..e56711c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,11 @@
 Core and Builtins
 -----------------
 
+- Issue #850997: mbcs encoding (Windows only) handles errors argument: strict
+  mode raises unicode errors. The encoder only supports "strict" and "replace"
+  error handlers, the decoder only supports "strict" and "ignore" error
+  handlers.
+
 - Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
   formats if the string contains a null byte/character. Write unit tests for
   string formats.