Index: libcxx/docs/ReleaseNotes.rst
===================================================================
--- libcxx/docs/ReleaseNotes.rst
+++ libcxx/docs/ReleaseNotes.rst
@@ -35,6 +35,11 @@
 What's New in Libc++ 10.0.0?
 ============================
 
+Fixes
+-----
+
+- Fixed use of non-default locales on Windows
+
 New Features
 ------------