diff --git a/CHANGES.md b/CHANGES.md
index 1a18e092f..1c6a7cb88 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -5,6 +5,7 @@
 ### Added
 
 * Add `from_file` and `from_file_with_config` to `NamedFile` to allow sending files without a known path. #670
+* Implement `Responder` for `()` returning 200 with empty body to allow handlers to return a unit.
 
 ### Fixed