diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.5.6 (Upcoming)
+
+### Bug Fixes:
+* core: Make sure CLI variables supersede variables from var files [GH-8964]
+    
 ## 1.5.5 (March 25,2020)
 
 ### IMPROVEMENTS: