CHANGELOG.md in ndr_support-5.9.3 vs CHANGELOG.md in ndr_support-5.9.4

@@ -1,7 +1,11 @@
 ## [Unreleased]
 * No unreleased changes
 
+## 5.9.4 / 2023-07-13
+### Added
+* Support Ruby 3.2. Drop support for Ruby 2.7, Rails 6.0
+
 ## 5.9.3 / 2022-12-02
 ## Fixed
 * Support Rails 7.0
 
 ## Changed