diff --git a/docs/changelog.rst b/docs/changelog.rst
index 42d98597..52e76ffc 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -20,6 +20,7 @@ Changes in 0.9.X - DEV
 - Support for PyMongo 3+ #946
 - Fix for issue where FileField deletion did not free space in GridFS. 
 - No_dereference() not respected on embedded docs containing reference. #517
+- Document save raise an exception if save_condition fails 
 
 Changes in 0.9.0
 ================