diff --git a/typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php b/typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php
index 39337bad4248904b14ce22765a74e9e407b1336d..8319c672e626a6d02be9b27d90a2c897d33b19b1 100644
--- a/typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php
+++ b/typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php
@@ -85,7 +85,7 @@ class SystemEnvironmentBuilder
     protected static function defineBaseConstants()
     {
         // This version, branch and copyright
-        define('TYPO3_version', '7.6.26-dev');
+        define('TYPO3_version', '7.6.26');
         define('TYPO3_branch', '7.6');
         define('TYPO3_copyright_year', '1998-2018');