UPGRADE FROM 3.2 to 3.3
=======================
BrowserKit
----------
* The request method is dropped from POST to GET when the response
status code is 301.
ClassLoader
-----------
* The component is deprecated and will be removed in 4.0. Use Composer instead.
Console
-------
* `Input::getOption()` no longer returns the default value for options
with value optional explicitly passed empty.
For:
```php
protected function configure()
{
$this
// ...
->setName('command')
->addOption('foo', null, InputOption::VALUE_OPTIONAL, '', 'default')
;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
var_dump($input->getOption('foo'));
}
```
Before:
```
$ php console.php command
"default"
$ php console.php command --foo
"default"
$ php console.php command --foo ""
"default"
$ php console.php command --foo=
"default"
```
After:
```
$ php console.php command
"default"
$ php console.php command --foo
NULL
$ php console.php command --foo ""
""
$ php console.php command --foo=
""
```
* The `console.exception` event and the related `ConsoleExceptionEvent` class
have been deprecated in favor of the `console.error` event and the `ConsoleErrorEvent`
class. The deprecated event and class will be removed in 4.0.
* The `SymfonyQuestionHelper::ask` default validation has been deprecated and will be removed in 4.0. Apply validation using `Question::setValidator` instead.
Debug
-----
* The `ContextErrorException` class is deprecated. `\ErrorException` will be used instead in 4.0.
DependencyInjection
-------------------
* Autowiring services based on the types they implement is deprecated and won't be supported in version 4.0. Rename (or alias) your services to their FQCN id to make them autowirable.
* The `NullDumper` class has been made final
* [BC BREAK] `_defaults` and `_instanceof` are now reserved service names in Yaml configurations. Please rename any services with that names.
* [BC BREAK] non-numeric keys in methods and constructors arguments have never been supported and are now forbidden. Please remove them if you happen to have one.
* Service names that start with an underscore are deprecated in Yaml files and will be reserved in 4.0. Please rename any services with such names.
* Autowiring-types have been deprecated, use aliases instead.
Before:
```xml
<service id="annotations.reader" class="Doctrine\Common\Annotations\AnnotationReader" public="false">
<autowiring-type>Doctrine\Common\Annotations\Reader</autowiring-type>
</service>
```
After:
```xml
<service id="annotations.reader" class="Doctrine\Common\Annotations\AnnotationReader" public="false" />
<service id="Doctrine\Common\Annotations\Reader" alias="annotations.reader" public="false" />
```
* The `Reference` and `Alias` classes do not make service identifiers lowercase anymore.
* Case insensitivity of service identifiers is deprecated and will be removed in 4.0.
* Using the `PhpDumper` with an uncompiled `ContainerBuilder` is deprecated and
will not be supported anymore in 4.0.
* Extending the containers generated by `PhpDumper` is deprecated and won't be
supported in 4.0.
* The `DefinitionDecorator` class is deprecated and will be removed in 4.0, use
the `ChildDefinition` class instead.
* The ``strict`` attribute in service arguments has been deprecated and will be removed in 4.0.
The attribute is ignored since 3.0, so you can simply remove it.
EventDispatcher
---------------
* The `ContainerAwareEventDispatcher` class has been deprecated.
Use `EventDispatcher` with closure factories instead.
Finder
------
* The `ExceptionInterface` has been deprecated and will be removed in 4.0.
Form
----
* Using the "choices" option in ``CountryType``, ``CurrencyType``, ``LanguageType``,
``LocaleType``, and ``TimezoneType`` without overriding the ``choice_loader``
option has been deprecated and will be ignored in 4.0.
Before:
```php
$builder->add('custom_locales', LocaleType::class, array(
'choices' => $availableLocales,
));
```
After:
```php
$builder->add('custom_locales', LocaleType::class, array(
'choices' => $availableLocales,
'choice_loader' => null,
));
// or
$builder->add('custom_locales', LocaleType::class, array(
'choice_loader' => new CallbackChoiceLoader(function () {
return $this->getAvailableLocales();
}),
));
```
FrameworkBundle
---------------
* [BC BREAK] The "framework.trusted_proxies" configuration option and the corresponding "kernel.trusted_proxies"
parameter have been removed. Use the Request::setTrustedProxies() method in your front controller instead.
* Not defining the `type` option of the `framework.workflows.*` configuration entries is deprecated.
The default value will be `state_machine` in Symfony 4.0.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\CompilerDebugDumpPass` has been deprecated.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\AddConsoleCommandPass` has been deprecated.
Use `Symfony\Component\Console\DependencyInjection\AddConsoleCommandPass` instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\SerializerPass` class has been
deprecated and will be removed in 4.0.
Use the `Symfony\Component\Serializer\DependencyInjection\SerializerPass` class instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\FormPass` class has been
deprecated and will be removed in 4.0. Use the `Symfony\Component\Form\DependencyInjection\FormPass`
class instead.
* The `Symfony\Bundle\FrameworkBundle\EventListener\SessionListener` class has been
deprecated and will be removed in 4.0. Use the `Symfony\Component\HttpKernel\EventListener\SessionListener`
class instead.
* The `Symfony\Bundle\FrameworkBundle\EventListener\TestSessionListener` class has been
deprecated and will be removed in 4.0. Use the `Symfony\Component\HttpKernel\EventListener\TestSessionListener`
class instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\ConfigCachePass` class has been
deprecated and will be removed in 4.0. Use `Symfony\Component\Config\DependencyInjection\ConfigCachePass`
class instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\PropertyInfoPass` class has been
deprecated and will be removed in 4.0. Use the `Symfony\Component\PropertyInfo\DependencyInjection\PropertyInfoPass`
class instead.
* Class parameters related to routing have been deprecated and will be removed in 4.0.
* router.options.generator_class
* router.options.generator_base_class
* router.options.generator_dumper_class
* router.options.matcher_class
* router.options.matcher_base_class
* router.options.matcher_dumper_class
* router.options.matcher.cache_class
* router.options.generator.cache_class
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\ControllerArgumentValueResolverPass` class
has been deprecated and will be removed in 4.0. Use the `Symfony\Component\HttpKernel\DependencyInjection\ControllerArgumentValueResolverPass`
class instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\RoutingResolverPass`
class has been deprecated and will be removed in 4.0. Use the
`Symfony\Component\Routing\DependencyInjection\RoutingResolverPass` class instead.
* The `server:run`, `server:start`, `server:stop` and
`server:status` console commands have been moved to a dedicated bundle.
Require `symfony/web-server-bundle` in your composer.json and register
`Symfony\Bundle\WebServerBundle\WebServerBundle` in your AppKernel to use them.
* The `Symfony\Bundle\FrameworkBundle\Translation\Translator` constructor now takes the
default locale as 3rd argument. Not passing it will trigger an error in 4.0.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\AddValidatorInitializersPass`
class has been deprecated and will be removed in 4.0.
Use the `Symfony\Component\Validator\DependencyInjection\AddValidatorInitializersPass` class instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\AddConstraintValidatorsPass`
class has been deprecated and will be removed in 4.0.
Use the `Symfony\Component\Validator\DependencyInjection\AddConstraintValidatorsPass` class instead.
* The `Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\ValidateWorkflowsPass`
class has been deprecated and will be removed in 4.0. Use the
`Symfony\Component\Workflow\DependencyInjection\ValidateWorkflowsPass` class instead.
* The `Symfony\Bundle\FrameworkBundle\Validator\ConstraintValidatorFactory`
class has been deprecated and will be removed in 4.0.
Use `Symfony\Component\Validator\ContainerConstraintValidatorFactory` instead.
HttpFoundation
--------------
* [BC BREAK] The `Request::setTrustedProxies()` method takes a new `$trustedHeaderSet` argument.
See http://symfony.com/doc/current/components/http_foundation/trusting_proxies.html for more info.
* The `Request::setTrustedHeaderName()` and `Request::getTrustedHeaderName()` methods are deprecated,
use the RFC7239 `Forwarded` header, or the `X-Forwarded-*` headers instead.
HttpKernel
-----------
* The `Extension::addClassesToCompile()` and `Extension::getClassesToCompile()` methods have been deprecated and will be removed in 4.0.
* The `Psr6CacheClearer::addPool()` method has been deprecated. Pass an array
of pools indexed by name to the constructor instead.
* The `LazyLoadingFragmentHandler::addRendererService()` method has been
deprecated and will be removed in 4.0.
* The `X-Status-Code` header method of setting a custom status code in the
response when handling exceptions has been removed. There is now a new
`GetResponseForExceptionEvent::allowCustomResponseCode()` method instead,
which will tell the Kernel to use the response code set on the event's
response object.
* The `Kernel::getEnvParameters()` method has been deprecated and will be
removed in 4.0.
* The `SYMFONY__` environment variables have been deprecated and they will be
no longer processed automatically by Symfony in 4.0. Use the `%env()%` syntax
to get the value of any environment variable from configuration files instead.
Process
-------
* The `ProcessUtils::escapeArgument()` method has been deprecated, use a command line array or give env vars to the `Process::start/run()` method instead.
* Not inheriting environment variables is deprecated.
* Configuring `proc_open()` options is deprecated.
* Configuring Windows and sigchild compatibility is deprecated - they will be always enabled in 4.0.
* Extending `Process::run()`, `Process::mustRun()` and `Process::restart()` is
deprecated and won't be supported in 4.0.
ProxyManager
------------
* [BC BREAK] The `ProxyDumper` class has been made final
Security
--------
* The `RoleInterface` has been deprecated. Extend the `Symfony\Component\Security\Core\Role\Role`
class in your custom role implementations instead.
* The `LogoutUrlGenerator::registerListener()` method will expect a 6th `string $context = null` argument in 4.0.
Define the argument when overriding this method.
* The `AccessDecisionManager::setVoters()` method has been deprecated. Pass
the voters to the constructor instead.
SecurityBundle
--------------
* The `FirewallContext::getContext()` method has been deprecated and will be removed in 4.0.
Use the `getListeners()` and/or `getExceptionListener()` method instead.
* The `FirewallMap::$map` and `$container` properties have been deprecated and will be removed in 4.0.
* The `UserPasswordEncoderCommand` command expects to be registered as a service and its
constructor arguments fully provided.
Registering by convention the command or commands extending it is deprecated and will
not be allowed anymore in 4.0.
* `UserPasswordEncoderCommand::getContainer()` is deprecated, and this class won't
extend `ContainerAwareCommand` nor implement `ContainerAwareInterface` anymore in 4.0.
* [BC BREAK] Keys of the `users` node for `in_memory` user provider are no longer normalized.
Serializer
----------
* Extending `ChainDecoder`, `ChainEncoder`, `ArrayDenormalizer` is deprecated
and won't be supported in 4.0.
TwigBridge
----------
* The `TwigRendererEngine::setEnvironment()` method has been deprecated and will be removed
in 4.0. Pass the Twig Environment as second argument of the constructor instead.
TwigBundle
----------
* The `ContainerAwareRuntimeLoader` class has been deprecated and will be removed in 4.0.
Use the Twig `Twig_ContainerRuntimeLoader` class instead.
Workflow
--------
* Deprecated class name support in `WorkflowRegistry::add()` as second parameter.
Wrap the class name in an instance of ClassInstanceSupportStrategy instead.
Yaml
----
* Starting an unquoted string with a question mark followed by a space is
deprecated and will throw a `ParseException` in Symfony 4.0.
* Deprecated support for implicitly parsing non-string mapping keys as strings.
Mapping keys that are no strings will lead to a `ParseException` in Symfony
4.0. Use quotes to opt-in for keys to be parsed as strings.
Before:
```php
$yaml = <<<YAML
null: null key
true: boolean true
2.0: float key
YAML;
Yaml::parse($yaml);
```
After:
```php
$yaml = <<<YAML
"null": null key
"true": boolean true
"2.0": float key
YAML;
Yaml::parse($yaml);
```
* Omitting the key of a mapping is deprecated and will throw a `ParseException` in Symfony 4.0.
* The constructor arguments `$offset`, `$totalNumberOfLines` and
`$skippedLineNumbers` of the `Parser` class are deprecated and will be
removed in 4.0