diff --git a/flight/net/Response.php b/flight/net/Response.php
index ad9c0dc..27077d2 100644
--- a/flight/net/Response.php
+++ b/flight/net/Response.php
@@ -45,6 +45,9 @@ class Response {
         205 => 'Reset Content',
         206 => 'Partial Content',
         207 => 'Multi-Status',
+        208 => 'Already Reported',
+
+        226 => 'IM Used',
 
         300 => 'Multiple Choices',
         301 => 'Moved Permanently',
@@ -52,8 +55,9 @@ class Response {
         303 => 'See Other',
         304 => 'Not Modified',
         305 => 'Use Proxy',
-        306 => 'Switch Proxy',
+        306 =>  'Unused)',
         307 => 'Temporary Redirect',
+        308 => 'Permanent Redirect',
 
         400 => 'Bad Request',
         401 => 'Unauthorized',
@@ -68,19 +72,22 @@ class Response {
         410 => 'Gone',
         411 => 'Length Required',
         412 => 'Precondition Failed',
-        413 => 'Request Entity Too Large',
-        414 => 'Request-URI Too Long',
+        413 => 'Payload Too Large',
+        414 => 'URI Too Long',
         415 => 'Unsupported Media Type',
-        416 => 'Requested Range Not Satisfiable',
+        416 => 'Range Not Satisfiable',
         417 => 'Expectation Failed',
-        418 => 'I\'m a teapot',
+
         422 => 'Unprocessable Entity',
         423 => 'Locked',
         424 => 'Failed Dependency',
-        425 => 'Unordered Collection',
+
         426 => 'Upgrade Required',
-        449 => 'Retry With',
-        450 => 'Blocked by Windows Parental Controls',
+
+        428 => 'Precondition Required',
+        429 => 'Too Many Requests',
+
+        431 => 'Request Header Fields Too Large',
 
         500 => 'Internal Server Error',
         501 => 'Not Implemented',
@@ -90,8 +97,10 @@ class Response {
         505 => 'HTTP Version Not Supported',
         506 => 'Variant Also Negotiates',
         507 => 'Insufficient Storage',
-        509 => 'Bandwidth Limit Exceeded',
-        510 => 'Not Extended'
+        508 => 'Loop Detected',
+
+        510 => 'Not Extended',
+        511 => 'Network Authentication Required'
     );
 
     /**