diff --git a/composer.json b/composer.json
index f938f10a1..3af11b4ac 100644
--- a/composer.json
+++ b/composer.json
@@ -61,6 +61,7 @@
       "core/legacy/querybuildercontextlegacy.class.inc.php",
       "core/querybuilderexpressions.class.inc.php",
       "core/legacy/querybuilderexpressionslegacy.class.inc.php",
+      "application/twigextension.class.inc.php",
       "core/oql/build/PHP/",
       "core/apc-emulation.php",
       "application/startup.inc.php",
diff --git a/lib/autoload.php b/lib/autoload.php
index f1eeef5ab..460e67535 100644
--- a/lib/autoload.php
+++ b/lib/autoload.php
@@ -2,11 +2,6 @@
 
 // autoload.php @generated by Composer
 
-if (PHP_VERSION_ID < 50600) {
-    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
-    exit(1);
-}
-
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInit7f81b4a2a468a061c306af5e447a9a9f::getLoader();
diff --git a/lib/composer/ClassLoader.php b/lib/composer/ClassLoader.php
index afef3fa2a..0cd6055d1 100644
--- a/lib/composer/ClassLoader.php
+++ b/lib/composer/ClassLoader.php
@@ -149,7 +149,7 @@ class ClassLoader
 
     /**
      * @return string[] Array of classname => path
-     * @psalm-return array<string, string>
+     * @psalm-var array<string, string>
      */
     public function getClassMap()
     {
diff --git a/lib/composer/autoload_classmap.php b/lib/composer/autoload_classmap.php
index dce85a939..a49eae028 100644
--- a/lib/composer/autoload_classmap.php
+++ b/lib/composer/autoload_classmap.php
@@ -2,7 +2,7 @@
 
 // autoload_classmap.php @generated by Composer
 
-$vendorDir = dirname(__DIR__);
+$vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(
@@ -356,7 +356,6 @@ return array(
     'Combodo\\iTop\\Renderer\\FieldRenderer' => $baseDir . '/sources/Renderer/FieldRenderer.php',
     'Combodo\\iTop\\Renderer\\FormRenderer' => $baseDir . '/sources/Renderer/FormRenderer.php',
     'Combodo\\iTop\\Renderer\\RenderingOutput' => $baseDir . '/sources/Renderer/RenderingOutput.php',
-    'Combodo\\iTop\\TwigExtension' => $baseDir . '/application/twigextension.class.inc.php',
     'CompileCSSService' => $baseDir . '/application/compilecssservice.class.inc.php',
     'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
     'Config' => $baseDir . '/core/config.class.inc.php',
diff --git a/lib/composer/autoload_files.php b/lib/composer/autoload_files.php
index ab8747494..51ec9b553 100644
--- a/lib/composer/autoload_files.php
+++ b/lib/composer/autoload_files.php
@@ -2,16 +2,16 @@
 
 // autoload_files.php @generated by Composer
 
-$vendorDir = dirname(__DIR__);
+$vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(
     '320cde22f66dd4f5d3fd621d3e88b98f' => $vendorDir . '/symfony/polyfill-ctype/bootstrap.php',
-    '7e9bd612cc444b3eed788ebbe46263a0' => $vendorDir . '/laminas/laminas-zendframework-bridge/src/autoload.php',
     '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
     '5255c38a0faeba867671b61dfda6d864' => $vendorDir . '/paragonie/random_compat/lib/random.php',
     '023d27dca8066ef29e6739335ea73bad' => $vendorDir . '/symfony/polyfill-php70/bootstrap.php',
-    'bd9634f2d41831496de0d3dfe4c94881' => $vendorDir . '/symfony/polyfill-php56/bootstrap.php',
     '32dcc8afd4335739640db7d200c1971d' => $vendorDir . '/symfony/polyfill-apcu/bootstrap.php',
     '667aeda72477189d0494fecd327c3641' => $vendorDir . '/symfony/var-dumper/Resources/functions/dump.php',
+    'bd9634f2d41831496de0d3dfe4c94881' => $vendorDir . '/symfony/polyfill-php56/bootstrap.php',
+    '7e9bd612cc444b3eed788ebbe46263a0' => $vendorDir . '/laminas/laminas-zendframework-bridge/src/autoload.php',
 );
diff --git a/lib/composer/autoload_namespaces.php b/lib/composer/autoload_namespaces.php
index e6117c750..d12922d08 100644
--- a/lib/composer/autoload_namespaces.php
+++ b/lib/composer/autoload_namespaces.php
@@ -2,7 +2,7 @@
 
 // autoload_namespaces.php @generated by Composer
 
-$vendorDir = dirname(__DIR__);
+$vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(
diff --git a/lib/composer/autoload_psr4.php b/lib/composer/autoload_psr4.php
index 008a180df..ddd4c36f4 100644
--- a/lib/composer/autoload_psr4.php
+++ b/lib/composer/autoload_psr4.php
@@ -2,7 +2,7 @@
 
 // autoload_psr4.php @generated by Composer
 
-$vendorDir = dirname(__DIR__);
+$vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(
diff --git a/lib/composer/autoload_real.php b/lib/composer/autoload_real.php
index dda4f956d..cc554d8d1 100644
--- a/lib/composer/autoload_real.php
+++ b/lib/composer/autoload_real.php
@@ -25,20 +25,33 @@ class ComposerAutoloaderInit7f81b4a2a468a061c306af5e447a9a9f
         require __DIR__ . '/platform_check.php';
 
         spl_autoload_register(array('ComposerAutoloaderInit7f81b4a2a468a061c306af5e447a9a9f', 'loadClassLoader'), true, true);
-        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(\dirname(__FILE__)));
         spl_autoload_unregister(array('ComposerAutoloaderInit7f81b4a2a468a061c306af5e447a9a9f', 'loadClassLoader'));
 
         $includePaths = require __DIR__ . '/include_paths.php';
         $includePaths[] = get_include_path();
         set_include_path(implode(PATH_SEPARATOR, $includePaths));
 
-        require __DIR__ . '/autoload_static.php';
-        call_user_func(\Composer\Autoload\ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f::getInitializer($loader));
+        $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
+        if ($useStaticLoader) {
+            require __DIR__ . '/autoload_static.php';
+
+            call_user_func(\Composer\Autoload\ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f::getInitializer($loader));
+        } else {
+            $classMap = require __DIR__ . '/autoload_classmap.php';
+            if ($classMap) {
+                $loader->addClassMap($classMap);
+            }
+        }
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
 
-        $includeFiles = \Composer\Autoload\ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f::$files;
+        if ($useStaticLoader) {
+            $includeFiles = Composer\Autoload\ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f::$files;
+        } else {
+            $includeFiles = require __DIR__ . '/autoload_files.php';
+        }
         foreach ($includeFiles as $fileIdentifier => $file) {
             composerRequire7f81b4a2a468a061c306af5e447a9a9f($fileIdentifier, $file);
         }
@@ -47,16 +60,11 @@ class ComposerAutoloaderInit7f81b4a2a468a061c306af5e447a9a9f
     }
 }
 
-/**
- * @param string $fileIdentifier
- * @param string $file
- * @return void
- */
 function composerRequire7f81b4a2a468a061c306af5e447a9a9f($fileIdentifier, $file)
 {
     if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
-        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
-
         require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
     }
 }
diff --git a/lib/composer/autoload_static.php b/lib/composer/autoload_static.php
index 78d4e6489..130def33f 100644
--- a/lib/composer/autoload_static.php
+++ b/lib/composer/autoload_static.php
@@ -8,13 +8,13 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
 {
     public static $files = array (
         '320cde22f66dd4f5d3fd621d3e88b98f' => __DIR__ . '/..' . '/symfony/polyfill-ctype/bootstrap.php',
-        '7e9bd612cc444b3eed788ebbe46263a0' => __DIR__ . '/..' . '/laminas/laminas-zendframework-bridge/src/autoload.php',
         '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => __DIR__ . '/..' . '/symfony/polyfill-mbstring/bootstrap.php',
         '5255c38a0faeba867671b61dfda6d864' => __DIR__ . '/..' . '/paragonie/random_compat/lib/random.php',
         '023d27dca8066ef29e6739335ea73bad' => __DIR__ . '/..' . '/symfony/polyfill-php70/bootstrap.php',
-        'bd9634f2d41831496de0d3dfe4c94881' => __DIR__ . '/..' . '/symfony/polyfill-php56/bootstrap.php',
         '32dcc8afd4335739640db7d200c1971d' => __DIR__ . '/..' . '/symfony/polyfill-apcu/bootstrap.php',
         '667aeda72477189d0494fecd327c3641' => __DIR__ . '/..' . '/symfony/var-dumper/Resources/functions/dump.php',
+        'bd9634f2d41831496de0d3dfe4c94881' => __DIR__ . '/..' . '/symfony/polyfill-php56/bootstrap.php',
+        '7e9bd612cc444b3eed788ebbe46263a0' => __DIR__ . '/..' . '/laminas/laminas-zendframework-bridge/src/autoload.php',
     );
 
     public static $prefixLengthsPsr4 = array (
@@ -637,7 +637,6 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Combodo\\iTop\\Renderer\\FieldRenderer' => __DIR__ . '/../..' . '/sources/Renderer/FieldRenderer.php',
         'Combodo\\iTop\\Renderer\\FormRenderer' => __DIR__ . '/../..' . '/sources/Renderer/FormRenderer.php',
         'Combodo\\iTop\\Renderer\\RenderingOutput' => __DIR__ . '/../..' . '/sources/Renderer/RenderingOutput.php',
-        'Combodo\\iTop\\TwigExtension' => __DIR__ . '/../..' . '/application/twigextension.class.inc.php',
         'CompileCSSService' => __DIR__ . '/../..' . '/application/compilecssservice.class.inc.php',
         'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',
         'Config' => __DIR__ . '/../..' . '/core/config.class.inc.php',
diff --git a/lib/composer/include_paths.php b/lib/composer/include_paths.php
index af33c1491..d4fb96718 100644
--- a/lib/composer/include_paths.php
+++ b/lib/composer/include_paths.php
@@ -2,7 +2,7 @@
 
 // include_paths.php @generated by Composer
 
-$vendorDir = dirname(__DIR__);
+$vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(