Issue #12728: Different Unicode characters having the same uppercase but
different lowercase are now matched in case-insensitive regular expressions.
diff --git a/Misc/NEWS b/Misc/NEWS
index 280448b..47c688c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -37,6 +37,9 @@
 Library
 -------
 
+- Issue #12728: Different Unicode characters having the same uppercase but
+  different lowercase are now matched in case-insensitive regular expressions.
+
 - Issue #22821: Fixed fcntl() with integer argument on 64-bit big-endian
   platforms.