diff --git a/user_guide_src/source/changelogs/v4.5.0.rst b/user_guide_src/source/changelogs/v4.5.0.rst
index 6794ded6c51d..06434719b093 100644
--- a/user_guide_src/source/changelogs/v4.5.0.rst
+++ b/user_guide_src/source/changelogs/v4.5.0.rst
@@ -247,6 +247,8 @@ Others
 Message Changes
 ***************
 
+- Added ``Validation.field_exists`` error message.
+
 Changes
 *******