diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 62be7b9476..9dc56da3ad 100755
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -11,11 +11,12 @@
 - **Flag** - Adds missing flag for England **Thanks @zyzniewski** [#5944](https://github.com/Semantic-Org/Semantic-UI/issues/5944)
 - **Reveal** - `ribbon label` can now work with `reveal` [#5681](https://github.com/Semantic-Org/Semantic-UI/issues/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.
+- **Site** - Site theme now includes `@customScrollbarHeight` and specifies a default horizontal scrollbar height **Thanks @jayphelps** [#5749](https://github.com/Semantic-Org/Semantic-UI/issues/5749)
 
 **Bugs**
 - **Checkbox** - Fixes issue where `toggle checkbox` box shadow was missing **Thanks @banandrew** [#5096](https://github.com/Semantic-Org/Semantic-UI/issues/5096)
 - **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](https://github.com/Semantic-Org/Semantic-UI/issues/5974) [#5366](https://github.com/Semantic-Org/Semantic-UI/issues/5366)
-- **Form** - Fixed issue where default prompts for `contain` and `doesntContain` rules were swapped. **Thanks @xiongyu-git** [#5530](https://github.com/Semantic-Org/Semantic-UI/issues/5530)
+- **Form Validation** - Fixed issue where default prompts for `contain` and `doesntContain` rules were swapped. **Thanks @xiongyu-git** [#5530](https://github.com/Semantic-Org/Semantic-UI/issues/5530)
 - **Visibility** - Fixes issue where `bottomPassed` and `topPassed` would not fire under some conditions
 - **Dropdown** - Fixes issue where dropdowns might accidentally animate closed two times when quickly tabbing through fields
 - **Popup** - Fixed an error which could cause popup not to move to right offset context when using a different target setting.