diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 7f1744a9f0..c4d471b49c 100755
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -11,6 +11,7 @@
 - **Button** - Youtube's red color now matches their current brand guidelines **Thanks @hammy2899** #6110
 - **Flag** - Adds missing flag for England **Thanks @zyzniewski** #5944
 - **Reveal** - `ribbon label` can now work with `reveal` #5681
+- **Dropdown** - Added new setting `ignoreCase` (defaults to false) that will prevent values from being added that match existing values (case insensitive). This is particularly useful when using allowAdditions for tagging to not allow case insensitive matches.
 
 **Bugs**
 - **Dropdown** - Fixed issue where dropdownsdown could incorrectly open upward and leftward opening when using `context` setting due to an incorrect offset calculation. **Thanks @dannyBies** #5974 #5366
diff --git a/src/definitions/modules/dropdown.js b/src/definitions/modules/dropdown.js
index a82cf87e83..82f87f336e 100644
--- a/src/definitions/modules/dropdown.js
+++ b/src/definitions/modules/dropdown.js
@@ -3061,7 +3061,7 @@ $.fn.dropdown = function(parameters) {
             return (module.get.query() !== '');
           },
           value: function(value) {
-            return (settings.ignoreAdditionCase)
+            return (settings.ignoreCase)
               ? module.has.valueIgnoringCase(value)
               : module.has.valueMatchingCase(value)
             ;
@@ -3694,7 +3694,7 @@ $.fn.dropdown.settings = {
   forceSelection         : true,       // force a choice on blur with search selection
 
   allowAdditions         : false,      // whether multiple select should allow user added values
-  ignoreAdditionCase     : true,       // whether to ignore case when adding a user selection
+  ignoreCase             : false,       // whether to consider values not matching in case to be the same
   hideAdditions          : true,       // whether or not to hide special message prompting a user they can enter a value
 
   maxSelections          : false,      // When set to a number limits the number of selections to this count