diff --git a/Misc/NEWS b/Misc/NEWS
index b02e785..8e9fbf4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and Builtins
 -----------------
 
+- Issue #5499: The 'c' code for argument parsing functions now only accepts a
+  byte, and the 'C' code only accepts a unicode character.
+
 - Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
 
 - Fix a segfault when running test_exceptions with coverage, caused by