diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4037ea7f9f1..4f7384d5849 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@ Ansible Changes By Release
 
 ## 2.1 TBD - ACTIVE DEVELOPMENT
 
+###Major Changes:
+
+* added facility for modules to send back 'diff' for display when ansible is called with --diff, file, puppet and other module already implement this
+
 ####New Modules:
 * aws: ec2_vpc_net_facts
 * cloudstack: cs_volume