prepared the 1.39.0 release

CHANGELOG

@@ -1,4 +1,4 @@
-* 1.39.0 (2019-XX-XX)
+* 1.39.0 (2019-04-16)
 
  * added Traversable support for the length filter
  * fixed some wrong location in error messages

ext/twig/php_twig.h

@@ -15,7 +15,7 @@
 #ifndef PHP_TWIG_H
 #define PHP_TWIG_H
 
-#define PHP_TWIG_VERSION "1.39.0-DEV"
+#define PHP_TWIG_VERSION "1.39.0"
 
 #include "php.h"
 

src/Environment.php

@@ -41,12 +41,12 @@ use Twig\TokenParser\TokenParserInterface;
  */
 class Environment
 {
-    const VERSION = '1.39.0-DEV';
+    const VERSION = '1.39.0';
     const VERSION_ID = 13900;
     const MAJOR_VERSION = 1;
     const MINOR_VERSION = 39;
     const RELEASE_VERSION = 0;
-    const EXTRA_VERSION = 'DEV';
+    const EXTRA_VERSION = '';
 
     protected $charset;
     protected $loader;