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symfony/UPGRADE-3.4.md

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UPGRADE FROM 3.3 to 3.4

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

  • 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.

Validator

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