diff --git a/CHANGELOG b/CHANGELOG
index 5a1db62..4ac012c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,7 +1,7 @@
 codebird-php - changelog
 ========================
 
-2.4.0 (not yet released)
+2.4.0 (2013-06-15)
 + Add contributing guidelines
 + rfe #21 JSON return format
 + Support HTTP proxy replies
diff --git a/composer.json b/composer.json
index b5294cd..170bd4f 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "mynetx/codebird-php",
     "description" : "A Twitter library in PHP.",
-    "version": "2.4.0-dev",
+    "version": "2.4.0",
     "autoload": {
         "classmap": ["src/"]
     },
diff --git a/src/codebird.php b/src/codebird.php
index 8ba5de2..ac2bb93 100644
--- a/src/codebird.php
+++ b/src/codebird.php
@@ -6,7 +6,7 @@
  * A Twitter library in PHP.
  *
  * @package codebird
- * @version 2.4.0-dev
+ * @version 2.4.0
  * @author J.M. <me@mynetx.net>
  * @copyright 2010-2013 J.M. <me@mynetx.net>
  *
@@ -107,7 +107,7 @@ class Codebird
     /**
      * The current Codebird version
      */
-    protected $_version = '2.4.0-dev';
+    protected $_version = '2.4.0';
 
     /**
      * Returns singleton class instance