symfony/UPGRADE-3.4.md

UPGRADE FROM 3.3 to 3.4

DependencyInjection

• Top-level anonymous services in XML are deprecated and will throw an exception in Symfony 4.0.

Finder

• The Symfony\Component\Finder\Iterator\FilterIterator class has been deprecated and will be removed in 4.0 as it used to fix a bug which existed before version 5.5.23/5.6.7.

FrameworkBundle

• The doctrine/cache dependency has been removed; require it via composer require doctrine/cache if you are using Doctrine cache in your project.

• The validator.mapping.cache.doctrine.apc service has been deprecated.

• The symfony/stopwatch dependency has been removed, require it via composer require symfony/stopwatch in your dev environment.

• Using the KERNEL_DIR environment variable or the automatic guessing based on the phpunit.xml / phpunit.xml.dist file location is deprecated since 3.4. Set the KERNEL_CLASS environment variable to the fully-qualified class name of your Kernel instead. Not setting the KERNEL_CLASS environment variable will throw an exception on 4.0 unless you override the KernelTestCase::createKernel() or KernelTestCase::getKernelClass() method.

• The KernelTestCase::getPhpUnitXmlDir() and KernelTestCase::getPhpUnitCliConfigArgument() methods are deprecated since 3.4 and will be removed in 4.0.

• The --no-prefix option of the translation:update command is deprecated and will be removed in 4.0. Use the --prefix option with an empty string as value instead (e.g. --prefix="")

Process

• The Symfony\Component\Process\ProcessBuilder class has been deprecated, use the Symfony\Component\Process\Process class directly instead.

SecurityBundle

• Using voters that do not implement the VoterInterfaceis now deprecated in the AccessDecisionManager and this functionality will be removed in 4.0.

• FirewallContext::getListeners() now returns \Traversable|array

Validator

• Not setting the strict option of the Choice constraint to true is deprecated and will throw an exception in Symfony 4.0.

Yaml

• Support for the !str tag is deprecated, use the !!str tag instead.

• Using the non-specific tag ! is deprecated and will have a different behavior in 4.0. Use a plain integer or !!float instead.