Merge branch 'hotfix/280' into develop

Forward port #280

Author: weierophinney

CHANGELOG.md

@@ -28,7 +28,10 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Added
 
-- Nothing.
+- [#280](https://github.com/zendframework/zend-diactoros/pull/280) adds the
+  response status code/phrase pairing "103 Early Hints" to the
+  `Response::$phrases` property. This is a new status proposed via
+  [RFC 8297](https://datatracker.ietf.org/doc/rfc8297/).
 
 ### Changed
 

src/Response.php

@@ -35,6 +35,7 @@ class Response implements ResponseInterface
         100 => 'Continue',
         101 => 'Switching Protocols',
         102 => 'Processing',
+        103 => 'Early Hints',
         // SUCCESS CODES
         200 => 'OK',
         201 => 'Created',