diff --git a/CHANGELOG b/CHANGELOG
index 3665617b2..4e4a7a2c3 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,4 @@
-# 3.27.0 (2026-XX-XX)
+# 3.27.0 (2026-05-27)
 
  * Add a strict mode to `Twig\Sandbox\SecurityPolicy` to opt-in to the 4.0 behavior for the `extends`/`use` tags and the `parent`/`block`/`attribute` functions, which are otherwise still implicitly allowed in a sandbox
  * Deprecate the fact that the `parent`, `block`, and `attribute` functions are always allowed in a sandboxed template
diff --git a/src/Environment.php b/src/Environment.php
index ab18ea53f..3678bcfbd 100644
--- a/src/Environment.php
+++ b/src/Environment.php
@@ -43,12 +43,12 @@ use Twig\TokenParser\TokenParserInterface;
  */
 class Environment
 {
-    public const VERSION = '3.27.0-DEV';
+    public const VERSION = '3.27.0';
     public const VERSION_ID = 32700;
     public const MAJOR_VERSION = 3;
     public const MINOR_VERSION = 27;
     public const RELEASE_VERSION = 0;
-    public const EXTRA_VERSION = 'DEV';
+    public const EXTRA_VERSION = '';
 
     private $charset;
     private $loader;