diff --git a/actix-http/src/header/common.rs b/actix-http/src/header/common.rs
index 67b0a9069..6942dc26a 100644
--- a/actix-http/src/header/common.rs
+++ b/actix-http/src/header/common.rs
@@ -8,12 +8,14 @@ use http::header::HeaderName;
 /// request.
 ///
 /// See [RFC 9211](https://www.rfc-editor.org/rfc/rfc9211) for full semantics.
+// TODO(breaking): replace with http's version
 pub const CACHE_STATUS: HeaderName = HeaderName::from_static("cache-status");
 
 /// Response header field that allows origin servers to control the behavior of CDN caches
 /// interposed between them and clients separately from other caches that might handle the response.
 ///
 /// See [RFC 9213](https://www.rfc-editor.org/rfc/rfc9213) for full semantics.
+// TODO(breaking): replace with http's version
 pub const CDN_CACHE_CONTROL: HeaderName = HeaderName::from_static("cdn-cache-control");
 
 /// Response header that prevents a document from loading any cross-origin resources that don't