Update Symfony to 3.3

app/config/config.yml

@@ -31,7 +31,6 @@ framework:
         engines: ['twig']
     default_locale:  "%locale%"
     trusted_hosts:   ~
-    trusted_proxies: ~
     session:
         # http://symfony.com/doc/current/reference/configuration/framework.html#handler-id
         handler_id:  session.handler.native_file

app/config/config_dev.yml

@@ -17,10 +17,10 @@ monolog:
             type: stream
             path: "%kernel.logs_dir%/%kernel.environment%.log"
             level: debug
-            channels: [!event, !loader]
+            channels: ["!event", "!loader"]
         console:
             type:   console
-            channels: [!event, !doctrine]
+            channels: ["!event", "!doctrine"]
         # uncomment to get logging in your browser
         # you may have to allow bigger header sizes in your Web server configuration
         #firephp:

composer.json

@@ -12,7 +12,7 @@
     },
     "require": {
         "php": "^7.0",
-        "symfony/symfony": "3.2.*",
+        "symfony/symfony": "3.3.*",
         "doctrine/orm": "^2.5",
         "doctrine/doctrine-bundle": "^1.6",
         "doctrine/doctrine-cache-bundle": "^1.2",
@@ -31,7 +31,7 @@
     },
     "require-dev": {
         "sensio/generator-bundle": "^3.0",
-        "symfony/phpunit-bridge": "3.3.*@dev",
+        "symfony/phpunit-bridge": "3.3.*",
         "phpunit/phpunit": "^6.1",
         "friendsofphp/php-cs-fixer": "^2.0",
         "liip/functional-test-bundle": "^1.7",

web/app.php

@@ -7,7 +7,7 @@ $loader = require __DIR__.'/../app/autoload.php';
 include_once __DIR__.'/../var/bootstrap.php.cache';
 
 $kernel = new AppKernel('prod', false);
-$kernel->loadClassCache();
+//$kernel->loadClassCache();
 //$kernel = new AppCache($kernel);
 
 // When using the HttpCache, you need to call the method in your front controller instead of relying on the configuration parameter

web/app_dev.php

@@ -23,7 +23,7 @@ $loader = require __DIR__.'/../app/autoload.php';
 Debug::enable();
 
 $kernel = new AppKernel('dev', true);
-$kernel->loadClassCache();
+//$kernel->loadClassCache();
 $request = Request::createFromGlobals();
 $response = $kernel->handle($request);
 $response->send();