rector/config/level/symfony/symfony30.yml

# resources:
# - https://github.com/symfony/symfony/blob/master/UPGRADE-3.0.md

services:
    # yaml
    # covers https://github.com/symfony/symfony/blob/3.0/UPGRADE-3.0.md#security
    Rector\YamlRector\Rector\RenameSubKeyYamlRector:
        $pathsToNewKeys:
            'security > firewalls > default > anonymous > key': 'secret'
            'security > firewalls > default > http_digest > key': 'secret'
            'security > firewalls > default > remember_me > key': 'secret'

    # php
    Rector\Symfony\Rector\HttpKernel\GetRequestRector: ~
    Rector\Symfony\Rector\Form\FormTypeGetParentRector: ~
    Rector\Symfony\Rector\Form\OptionNameRector: ~

    # general
    Rector\Rector\Constant\ClassConstantReplacerRector:
        $oldToNewConstantsByClass:
            # form
            'Symfony\Component\Form\FormEvents':
                'PRE_BIND': 'PRE_SUBMIT'
                'BIND': 'SUBMIT'
                'POST_BIND': 'POST_SUBMIT'
            'Symfony\Component\Form\Extension\Core\DataTransformer':
                'ROUND_HALFEVEN': 'ROUND_HALF_EVEN'
                'ROUND_HALFUP': 'ROUND_HALF_UP'
                'ROUND_HALFDOWN': 'ROUND_HALF_DOWN'

    Rector\Rector\MethodCall\MethodNameReplacerRector:
        $perClassOldToNewMethods:
            # class loader
            'Symfony\Component\ClassLoader\UniversalClassLoader\UniversalClassLoader':
                  'registerNamespaces': 'addPrefixes'
                  'registerPrefixes': 'addPrefixes'
                  'registerNamespace': 'addPrefix'
                  'registerPrefix': 'addPrefix'
                  'getNamespaces': 'getPrefixes'
                  'getNamespaceFallbacks': 'getFallbackDirs'
                  'getPrefixFallbacks': 'getFallbackDirs'

            # form
            'Symfony\Component\Form\AbstractType':
                'getName': 'getBlockPrefix'
                'setDefaultOptions': 'configureOptions'
            'Symfony\Component\Form\FormTypeInterface':
                'getName': 'getBlockPrefix'
                'setDefaultOptions': 'configureOptions'
            'Symfony\Component\Form\ResolvedFormTypeInterface':
                'getName': 'getBlockPrefix'
            'Symfony\Component\Form\AbstractTypeExtension':
                'setDefaultOptions': 'configureOptions'
            'Symfony\Component\Form\Form':
                'bind': 'submit'
                'isBound': 'isSubmitted'

            # process
            'Symfony\Component\Process\Process':
                'setStdin': 'setInput'
                'getStdin': 'getInput'

            # monolog
            'Symfony\Bridge\Monolog\Logger':
                'emerg': 'emergency'
                'crit': 'critical'
                'err': 'error'
                'warn': 'warning'

            # http kernel
            'Symfony\Component\HttpKernel\Log\LoggerInterface':
                  'emerg': 'emergency'
                  'crit': 'critical'
                  'err': 'error'
                  'warn': 'warning'
            'Symfony\Component\HttpKernel\Log\NullLogger':
                  'emerg': 'emergency'
                  'crit': 'critical'
                  'err': 'error'
                  'warn': 'warning'

            # property access
            Symfony\Component\PropertyAccess\PropertyAccess:
                'getPropertyAccessor': 'createPropertyAccessor'

            # serialazer
            'Symfony\Component\Serializer\Exception\Exception': 'Symfony\Component\Serializer\Exception\ExceptionInterface'

            # translator
            'Symfony\Component\Translation\Dumper\FileDumper':
                'format': 'formatCatalogue'
            'Symfony\Component\Translation\Translator':
                'getMessages': 'getCatalogue'

            # validator
            'Symfony\Component\Validator\ConstraintViolationInterface':
                'getMessageParameters': 'getParameters'
                'getMessagePluralization': 'getPlural'
            'Symfony\Component\Validator\ConstraintViolation':
                'getMessageParameters': 'getParameters'
                'getMessagePluralization': 'getPlural'

    Rector\Rector\Class_\ClassReplacerRector:
        $oldToNewClasses:
            # class loader
            'Symfony\Component\ClassLoader\UniversalClassLoader\UniversalClassLoader': 'Symfony\Component\ClassLoader\ClassLoader' # partial with method rename

            # console
            'Symfony\Component\Console\Helper\ProgressHelper': 'Symfony\Component\Console\Helper\ProgressBar'

            # form
            'Symfony\Component\Form\Util\VirtualFormAwareIterator': 'Symfony\Component\Form\Util\InheritDataAwareIterator'
            'Symfony\Component\Form\Tests\Extension\Core\Type\TypeTestCase': 'Symfony\Component\Form\Test\TypeTestCase'
            'Symfony\Component\Form\Tests\FormIntegrationTestCase': 'Symfony\Component\Form\Test\FormIntegrationTestCase'
            'Symfony\Component\Form\Tests\FormPerformanceTestCase': 'Symfony\Component\Form\Test\FormPerformanceTestCase'
            'Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface': 'Symfony\Component\Form\ChoiceList\ChoiceListInterface'
            'Symfony\Component\Form\Extension\Core\View\ChoiceView': 'Symfony\Component\Form\ChoiceList\View\ChoiceView'
            'Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfProviderInterface': 'Symfony\Component\Security\Csrf\CsrfTokenManagerInterface'
            'Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceList': 'Symfony\Component\Form\ChoiceList\ArrayChoiceList'
            'Symfony\Component\Form\Extension\Core\ChoiceList\LazyChoiceList': 'Symfony\Component\Form\ChoiceList\LazyChoiceList'
            'Symfony\Component\Form\Extension\Core\ChoiceList\ObjectChoiceList': 'Symfony\Component\Form\ChoiceList\ArrayChoiceList'
            'Symfony\Component\Form\Extension\Core\ChoiceList\SimpleChoiceList': 'Symfony\Component\Form\ChoiceList\ArrayChoiceList'
            'Symfony\Component\Form\ChoiceList\ArrayKeyChoiceList': 'Symfony\Component\Form\ChoiceList\ArrayChoiceList'

            # http kernel
            'Symfony\Component\HttpKernel\Debug\ErrorHandler': 'Symfony\Component\Debug\ErrorHandler'
            'Symfony\Component\HttpKernel\Debug\ExceptionHandler': 'Symfony\Component\Debug\ExceptionHandler'
            'Symfony\Component\HttpKernel\Exception\FatalErrorException': 'Symfony\Component\Debug\Exception\FatalErrorException'
            'Symfony\Component\HttpKernel\Exception\FlattenException': 'Symfony\Component\Debug\Exception\FlattenException'
            'Symfony\Component\HttpKernel\Log\LoggerInterface': 'Psr\Log\LoggerInterface' # partial with method rename

            # event disptacher
            'Symfony\Component\HttpKernel\DependencyInjection\RegisterListenersPass': 'Symfony\Component\EventDispatcher\DependencyInjection\RegisterListenersPass'
            'Symfony\Component\HttpKernel\Log\NullLogger': 'Psr\Log\LoggerInterface' # partial with methor rename

            # monolog
            'Symfony\Bridge\Monolog\Logger': 'Psr\Log\LoggerInterface' # partial with method rename

            # security
            'Symfony\Component\Security\Core\Authorization\Voter\AbstractVoter': 'Symfony\Component\Security\Core\Authorization\Voter\Voter'

            # translator
            'Symfony\Component\Translation\Translator': 'Symfony\Component\Translation\TranslatorBagInterface' # partial with class rename

            # twig
            'Symfony\Bundle\TwigBundle\TwigDefaultEscapingStrategy': 'Twig_FileExtensionEscapingStrategy'

            # validator
            'Symfony\Component\Validator\Constraints\Collection\Optional': 'Symfony\Component\Validator\Constraints\Optional'
            'Symfony\Component\Validator\Constraints\Collection\Required': 'Symfony\Component\Validator\Constraints\Required'
            'Symfony\Component\Validator\MetadataInterface': 'Symfony\Component\Validator\Mapping\MetadataInterface'
            'Symfony\Component\Validator\PropertyMetadataInterface': 'Symfony\Component\Validator\Mapping\PropertyMetadataInterface'
            'Symfony\Component\Validator\PropertyMetadataContainerInterface': 'Symfony\Component\Validator\Mapping\ClassMetadataInterface'
            'Symfony\Component\Validator\ClassBasedInterface': 'Symfony\Component\Validator\Mapping\ClassMetadataInterface'
            'Symfony\Component\Validator\Mapping\ElementMetadata': 'Symfony\Component\Validator\Mapping\GenericMetadata'
            'Symfony\Component\Validator\ExecutionContextInterface': 'Symfony\Component\Validator\Context\ExecutionContextInterface'
            'Symfony\Component\Validator\Mapping\ClassMetadataFactory': 'Symfony\Component\Validator\Mapping\Factory\LazyLoadingMetadataFactory'
            'Symfony\Component\Validator\Mapping\MetadataFactoryInterface': 'Symfony\Component\Validator\Mapping\Factory\MetadataFactoryInterface'

            # swift mailer
            'Symfony\Bridge\Swiftmailer\DataCollector\MessageDataCollector': 'Symfony\Bundle\SwiftmailerBundle\DataCollector\MessageDataCollector'