diff --git a/CHANGES b/CHANGES
index a09935ac..d7d38d77 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,8 @@
 v3.0.4 - YYYY-MMM-DD (to be released)
 -------------------------------------
 
+ - Implemented merge() method for ConfigInt, ConfigDouble, ConfigString
+   [Issue #1990 - @defanator]
  - Adds initially support to the drop action.
    [@zimmerle]
  - Complete merging of particular rule properties