diff --git a/CHANGELOG-3.3.md b/CHANGELOG-3.3.md
index e005c1dabe0d0..185d1432cc409 100644
--- a/CHANGELOG-3.3.md
+++ b/CHANGELOG-3.3.md
@@ -7,6 +7,46 @@ in 3.3 minor versions.
 To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash
 To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v3.3.0...v3.3.1
 
+* 3.3.7 (2017-08-28)
+
+ * bug #24009 [DI] Fix tracking env vars when merging configs (bis) (nicolas-grekas)
+ * bug #23952 [PhpUnitBridge] install PHPUnit 6 on PHP 7.2 (xabbuh)
+ * bug #23985 [Cache] Workaround zend.detect_unicode + zend.multibyte (nicolas-grekas)
+ * bug #23989 [Debug] Remove false-positive check in DebugClassLoader (nicolas-grekas)
+ * bug #23983 [VarDumper] Strengthen dumped JS (nicolas-grekas)
+ * bug #23982 [VarDumper] Strengthen dumped JS (nicolas-grekas)
+ * bug #23925 [Validator] Fix use of GroupSequenceProvider in child classes (linniksa)
+ * bug #23971 [Cache] Fix lazy Memcached connections (nicolas-grekas)
+ * bug #23970 [Cache] Fix >30 days expirations with Memcached (nicolas-grekas)
+ * bug #23949 [Dotenv] Get env using $_SERVER to work with fastcgi_param and workaround thread safety issues (nicolas-grekas)
+ * bug #23799 [Dotenv][WebServerBundle] Override previously loaded variables (voronkovich)
+ * bug #23676 [WebProfilerBundle] Re add missing link to the controller (lyrixx)
+ * bug #23870 [DI] Use GlobResource for non-tracked directories (vudaltsov)
+ * bug #23945 [Validator] Fix Greek translation (azhurb)
+ * bug #23940 [DI] Fix resolving env vars when compiling a ContainerBuilder (nicolas-grekas)
+ * bug #23903 [DI] Fix merging of env vars in configs (nicolas-grekas)
+ * bug #23825 Revert "feature #21038 [FrameworkBundle] deprecated cache:clear with warmup (fabpot)" (nicolas-grekas)
+ * bug #23899 [DI] Fix reading env vars from fastcgi params (nicolas-grekas)
+ * bug #23909 [Console] Initialize lazily to render exceptions properly (nicolas-grekas)
+ * bug #23878 [VarDumper] play nice with open_basedir when looking for composer.json (nicolas-grekas)
+ * bug #23897 Allow phpdocumentor/reflection-docblock 4 (derrabus)
+ * bug #23865 [Workflow] fixed InvalidDefinitionException message for StateMachineValidator (fmata)
+ * bug #23856 [DI] Fix dumping abstract with YamlDumper (nicolas-grekas)
+ * bug #23848 restrict reflection doc block (ElectricMaxxx)
+ * bug #23854 [DI] Fix YamlDumper not dumping abstract and autoconfigure (nicolas-grekas)
+ * bug #23752 Ignore memcached missing key error on session destroy (jderusse)
+ * bug #23829 Fixed the exception page design in responsive mode (javiereguiluz)
+ * bug #23828 [Console] Log exit codes as debug messages instead of errors (haroldiedema)
+ * bug #23763 [Cache] Hash cache key on save (lstrojny)
+ * bug #23806 [Profiler] Fix request_collector check in main layout (ogizanagi)
+ * bug #23658 [HttpFoundation] Generate safe fallback filename for wrongly encoded filename (xelaris)
+ * bug #23776 [FrameworkBundle] Warmup annotations for bundle-less controllers and entities (nicolas-grekas)
+ * bug #23783 Avoid infinite loops when profiler data is malformed (javiereguiluz)
+ * bug #23638 [FrameworkBundle][Workflow] better errors when security deps are missing (xabbuh)
+ * bug #23729 [Bridge\ProxyManager] Dont call __destruct() on non-instantiated services (nicolas-grekas)
+ * bug #23703 Bump minimal PHP version to ^5.5.9|>=7.0.8 (nicolas-grekas)
+ * bug #23755 [Config] Fix checking class existence freshness (nicolas-grekas)
+
 * 3.3.6 (2017-08-01)
 
  * bug #22244 [Console] Fix passing options with defaultCommand (Jakub Sacha)
diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index f6a62a6341cfa..815841ec6c84f 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -61,12 +61,12 @@ abstract class Kernel implements KernelInterface, TerminableInterface
 
     private $projectDir;
 
-    const VERSION = '3.3.7-DEV';
+    const VERSION = '3.3.7';
     const VERSION_ID = 30307;
     const MAJOR_VERSION = 3;
     const MINOR_VERSION = 3;
     const RELEASE_VERSION = 7;
-    const EXTRA_VERSION = 'DEV';
+    const EXTRA_VERSION = '';
 
     const END_OF_MAINTENANCE = '01/2018';
     const END_OF_LIFE = '07/2018';