diff --git a/.travis.yml b/.travis.yml
index b7ce58bd8f..e01ab63ab3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: php
 
-dist: precise
+dist: trusty
 sudo: false
 
 git:
@@ -13,17 +13,14 @@ addons:
 
 env:
     global:
-        - MIN_PHP=5.3.9
+        - MIN_PHP=5.4.9
         - SYMFONY_PROCESS_PHP_TEST_BINARY=~/.phpenv/versions/5.6/bin/php
 
 matrix:
     include:
-        # Use the newer stack for HHVM as HHVM does not support Precise anymore since a long time and so Precise has an outdated version
         - php: hhvm-3.18
           sudo: required
-          dist: trusty
           group: edge
-        - php: 5.3
         - php: 5.4
         - php: 5.5
         - php: 5.6
@@ -99,7 +96,6 @@ before_install:
       echo opcache.enable_cli = 1 >> $INI
       echo hhvm.jit = 0 >> $INI
       echo apc.enable_cli = 1 >> $INI
-      echo extension = ldap.so >> $INI
       [[ $PHP = 5.* ]] && echo extension = memcache.so >> $INI
       if [[ $PHP = 5.* ]]; then
           echo extension = mongo.so >> $INI
diff --git a/appveyor.yml b/appveyor.yml
index 6141b988ce..3f7d1202c4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,8 +17,8 @@ init:
 install:
     - mkdir c:\php && cd c:\php
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/cacert.pem
-    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-5.3.11-nts-Win32-VC9-x86.zip
-    - 7z x php-5.3.11-nts-Win32-VC9-x86.zip -y >nul
+    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-5.3.9-nts-Win32-VC9-x86.zip
+    - 7z x php-5.3.9-nts-Win32-VC9-x86.zip -y >nul
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/ICU-51.2-dlls.zip
     - 7z x ICU-51.2-dlls.zip -y >nul
     - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-7.1.3-Win32-VC14-x86.zip
@@ -62,7 +62,7 @@ test_script:
     - cd c:\php && 7z x php-7.1.3-Win32-VC14-x86.zip -y >nul && copy /Y php.ini-min php.ini
     - cd c:\projects\symfony
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!
-    - cd c:\php && 7z x php-5.3.11-nts-Win32-VC9-x86.zip -y >nul && copy /Y php.ini-min php.ini
+    - cd c:\php && 7z x php-5.3.9-nts-Win32-VC9-x86.zip -y >nul && copy /Y php.ini-min php.ini
     - cd c:\projects\symfony
     - SET SYMFONY_PHPUNIT_SKIPPED_TESTS=phpunit.skipped
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!
diff --git a/src/Symfony/Bundle/SecurityBundle/composer.json b/src/Symfony/Bundle/SecurityBundle/composer.json
index 04fd647305..e847709765 100644
--- a/src/Symfony/Bundle/SecurityBundle/composer.json
+++ b/src/Symfony/Bundle/SecurityBundle/composer.json
@@ -24,19 +24,19 @@
         "symfony/polyfill-php70": "~1.0"
     },
     "require-dev": {
-        "symfony/browser-kit": "~2.4|~3.0.0",
+        "symfony/browser-kit": "~2.7|~3.0.0",
         "symfony/console": "~2.7|~3.0.0",
-        "symfony/css-selector": "^2.0.5|~3.0.0",
-        "symfony/dom-crawler": "^2.0.5|~3.0.0",
+        "symfony/css-selector": "^2.7|~3.0.0",
+        "symfony/dom-crawler": "^2.7|~3.0.0",
         "symfony/form": "^2.8.18",
         "symfony/framework-bundle": "^2.8.18",
         "symfony/http-foundation": "~2.7|~3.0.0",
         "symfony/twig-bundle": "~2.7|~3.1.0",
         "symfony/twig-bridge": "^2.7.4|~3.1.0",
-        "symfony/process": "^2.0.5|~3.0.0",
+        "symfony/process": "^2.7|~3.0.0",
         "symfony/validator": "~2.7.25|^2.8.18|~3.2.5",
-        "symfony/yaml": "^2.0.5|~3.0.0",
-        "symfony/expression-language": "~2.6|~3.0.0",
+        "symfony/yaml": "^2.7|~3.0.0",
+        "symfony/expression-language": "~2.7|~3.0.0",
         "doctrine/doctrine-bundle": "~1.2",
         "twig/twig": "~1.34|~2.4"
     },
diff --git a/src/Symfony/Component/Console/Input/ArrayInput.php b/src/Symfony/Component/Console/Input/ArrayInput.php
index af4c204bba..0bff15e229 100644
--- a/src/Symfony/Component/Console/Input/ArrayInput.php
+++ b/src/Symfony/Component/Console/Input/ArrayInput.php
@@ -104,9 +104,15 @@ class ArrayInput extends Input
         $params = array();
         foreach ($this->parameters as $param => $val) {
             if ($param && '-' === $param[0]) {
-                $params[] = $param.('' != $val ? '='.$this->escapeToken($val) : '');
+                if (is_array($val)) {
+                    foreach ($val as $v) {
+                        $params[] = $param.('' != $v ? '='.$this->escapeToken($v) : '');
+                    }
+                } else {
+                    $params[] = $param.('' != $val ? '='.$this->escapeToken($val) : '');
+                }
             } else {
-                $params[] = $this->escapeToken($val);
+                $params[] = is_array($val) ? array_map(array($this, 'escapeToken'), $val) : $this->escapeToken($val);
             }
         }
 
diff --git a/src/Symfony/Component/Console/Tests/Input/ArrayInputTest.php b/src/Symfony/Component/Console/Tests/Input/ArrayInputTest.php
index 06e65f7398..608020a5ca 100644
--- a/src/Symfony/Component/Console/Tests/Input/ArrayInputTest.php
+++ b/src/Symfony/Component/Console/Tests/Input/ArrayInputTest.php
@@ -140,5 +140,8 @@ class ArrayInputTest extends TestCase
     {
         $input = new ArrayInput(array('-f' => null, '-b' => 'bar', '--foo' => 'b a z', '--lala' => null, 'test' => 'Foo', 'test2' => "A\nB'C"));
         $this->assertEquals('-f -b=bar --foo='.escapeshellarg('b a z').' --lala Foo '.escapeshellarg("A\nB'C"), (string) $input);
+
+        $input = new ArrayInput(array('-b' => array('bval_1', 'bval_2'), '--f' => array('fval_1', 'fval_2')));
+        $this->assertSame('-b=bval_1 -b=bval_2 --f=fval_1 --f=fval_2', (string) $input);
     }
 }
diff --git a/src/Symfony/Component/ExpressionLanguage/Node/GetAttrNode.php b/src/Symfony/Component/ExpressionLanguage/Node/GetAttrNode.php
index ae22deb8a0..ec5987645b 100644
--- a/src/Symfony/Component/ExpressionLanguage/Node/GetAttrNode.php
+++ b/src/Symfony/Component/ExpressionLanguage/Node/GetAttrNode.php
@@ -82,8 +82,11 @@ class GetAttrNode extends Node
                 if (!is_object($obj)) {
                     throw new \RuntimeException('Unable to get a property on a non-object.');
                 }
+                if (!is_callable($toCall = array($obj, $this->nodes['attribute']->attributes['value']))) {
+                    throw new \RuntimeException(sprintf('Unable to call method "%s" of object "%s".', $this->nodes['attribute']->attributes['value'], get_class($obj)));
+                }
 
-                return call_user_func_array(array($obj, $this->nodes['attribute']->attributes['value']), $this->nodes['arguments']->evaluate($functions, $values));
+                return call_user_func_array($toCall, $this->nodes['arguments']->evaluate($functions, $values));
 
             case self::ARRAY_CALL:
                 $array = $this->nodes['node']->evaluate($functions, $values);
diff --git a/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php b/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
index 07f4b1e8a0..0ef278c901 100644
--- a/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
+++ b/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
@@ -163,6 +163,16 @@ class ExpressionLanguageTest extends TestCase
         $registerCallback($el);
     }
 
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessageRegExp  /Unable to call method "\w+" of object "\w+"./
+     */
+    public function testCallBadCallable()
+    {
+        $el = new ExpressionLanguage();
+        $el->evaluate('foo.myfunction()', array('foo' => new \stdClass()));
+    }
+
     /**
      * @dataProvider getRegisterCallbacks
      * @expectedException \LogicException
diff --git a/src/Symfony/Component/HttpFoundation/JsonResponse.php b/src/Symfony/Component/HttpFoundation/JsonResponse.php
index a83d0077a8..89f6e07f3a 100644
--- a/src/Symfony/Component/HttpFoundation/JsonResponse.php
+++ b/src/Symfony/Component/HttpFoundation/JsonResponse.php
@@ -121,7 +121,7 @@ class JsonResponse extends Response
             $data = json_encode($data, $this->encodingOptions);
         } else {
             try {
-                if (\PHP_VERSION_ID < 50400) {
+                if (!interface_exists('JsonSerializable', false)) {
                     // PHP 5.3 triggers annoying warnings for some
                     // types that can't be serialized as JSON (INF, resources, etc.)
                     // but doesn't provide the JsonSerializable interface.
@@ -153,7 +153,7 @@ class JsonResponse extends Response
                 if (\PHP_VERSION_ID < 50500) {
                     restore_error_handler();
                 }
-                if (\PHP_VERSION_ID >= 50400 && 'Exception' === get_class($e) && 0 === strpos($e->getMessage(), 'Failed calling ')) {
+                if (interface_exists('JsonSerializable', false) && 'Exception' === get_class($e) && 0 === strpos($e->getMessage(), 'Failed calling ')) {
                     throw $e->getPrevious() ?: $e;
                 }
                 throw $e;
diff --git a/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php
index 8156da0693..e15505cc69 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php
@@ -206,10 +206,13 @@ class JsonResponseTest extends TestCase
     /**
      * @expectedException \Exception
      * @expectedExceptionMessage This error is expected
-     * @requires PHP 5.4
      */
     public function testSetContentJsonSerializeError()
     {
+        if (!interface_exists('JsonSerializable', false)) {
+            $this->markTestSkipped('JsonSerializable is required.');
+        }
+
         $serializable = new JsonSerializableObject();
 
         JsonResponse::create($serializable);
@@ -224,7 +227,7 @@ class JsonResponseTest extends TestCase
     }
 }
 
-if (interface_exists('JsonSerializable')) {
+if (interface_exists('JsonSerializable', false)) {
     class JsonSerializableObject implements \JsonSerializable
     {
         public function jsonSerialize()