Существует ли версия Doctrine 2, совместимая с PHP 5.6?

У меня есть приложение Symfony 2.3, использующее Doctrine >=2.2.3,‹2.4-dev. Я обновил свой рабочий сервер до PHP 5.6, что вызвало следующую ошибку с FOSUserBundle:

Warning: Erroneous data format for unserializing 'air\cms2Bundle\Entity\User' in /vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php on line 833

Fatal error: __clone method called on non-object in /vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php on line 837

Объект является просто расширением FOSUserBundle BaseUser, как показано здесь. Класс FOSUserBundle BaseUser можно найти здесь.

Проведя некоторые первоначальные исследования, я обнаружил, что ошибка вызвана проблемой совместимости PHP 5.6 и Doctrine 2 из-за изменения в Сериализуемый в PHP 5.6. Разработчики Doctrine исправили проблему (см. запрос на включение GitHub), но я все еще не уверен, какая версия Doctrine 2 мне нужна в composer.json, чтобы получить исправление, и я также не уверен, с какими версиями Symfony 2 она совместима.

Мой текущий composer.json:

"require": {
        "php": ">=5.3.3",
        "symfony/symfony": "2.3.*",
        "doctrine/orm": ">=2.2.3,<2.4-dev",
        "doctrine/doctrine-bundle": "1.2.*",
        ...
},

Обновление:

Я обновил свой composer.json до:

"require": {
    "php": ">=5.6.0",
    "symfony/symfony": "2.6.*",
    "doctrine/orm": "~2.5",
    "doctrine/doctrine-bundle": "1.2.*",
    ...
},

Но, к сожалению, это вызывает неразрешимую проблему зависимости:

Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Conclusion: don't install doctrine/orm v2.5.4
    - Conclusion: remove doctrine/doctrine-bundle v1.2.0
    - Conclusion: remove doctrine/dbal v2.4.5
    - Conclusion: don't install doctrine/orm v2.5.3
    - Conclusion: don't install doctrine/orm v2.5.2
    - Conclusion: don't install doctrine/orm v2.5.1
    - Conclusion: don't install doctrine/dbal v2.4.5
    - Conclusion: don't install doctrine/dbal v2.5.2|install doctrine/dbal v2.4.5
    - Conclusion: don't install doctrine/dbal v2.5.3|install doctrine/dbal v2.4.5
    - Conclusion: don't install doctrine/dbal v2.5.4|install doctrine/dbal v2.4.5
    - Installation request for doctrine/doctrine-bundle 1.2.* -> satisfiable by doctrine/doctrine-bundle[v1.2.0].
    - Installation request for doctrine/orm ~2.5 -> satisfiable by doctrine/orm[v2.5.0, v2.5.1, v2.5.2, v2.5.3, v2.5.4].
    - doctrine/doctrine-bundle v1.2.0 requires doctrine/dbal >=2.2,<2.5-dev -> satisfiable by doctrine/dbal[v2.4.5, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, v2.4.0, v2.4.1, v2.4.2, v2.4.3, v2.4.4].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.2.0].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.2.1].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.2.2].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.3.0].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.3.1].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.3.2].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.3.3].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.3.4].
    - Can only install one of: doctrine/dbal[v2.5.0, 2.3.5].
    - Can only install one of: doctrine/dbal[v2.5.0, v2.4.0].
    - Can only install one of: doctrine/dbal[v2.5.0, v2.4.1].
    - Can only install one of: doctrine/dbal[v2.5.0, v2.4.2].
    - Can only install one of: doctrine/dbal[v2.5.0, v2.4.3].
    - Can only install one of: doctrine/dbal[v2.5.0, v2.4.4].
    - doctrine/orm v2.5.0 requires doctrine/dbal >=2.5-dev,<2.6-dev -> satisfiable by doctrine/dbal[v2.5.0, v2.5.1, v2.5.2, v2.5.3, v2.5.4].
    - Conclusion: don't install doctrine/dbal v2.5.1

Я также попытался обновить свой composer.json до

"require": {
    "php": ">=5.6.0",
    "symfony/symfony": "2.6.*",
    "doctrine/common": "~2.5",
    ...
},

Но это вызывает ошибку при запуске app/console clear:cache после того, как композитор закончил обновление.

Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Removing doctrine/orm (v2.4.8)
  - Removing doctrine/doctrine-bundle (v1.2.0)
  - Removing doctrine/dbal (v2.4.5)
  - Removing jdorn/sql-formatter (v1.2.17)
Writing lock file
Generating autoload files
> Incenteev\ParameterHandler\ScriptHandler::buildParameters
Updating the "app/config/parameters.yml" file
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache
PHP Fatal error:  Class 'Doctrine\Bundle\DoctrineBundle\DoctrineBundle' not found in /vagrant/logbookWebApp-data/app/AppKernel.php on line 16
Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the post-update-cmd event terminated with an exception


  [RuntimeException]                                                         
  An error occurred when executing the "'cache:clear --no-warmup'" command.  


update [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--lock] [--no-plugins] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--no-progress] [--with-dependencies] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [-i|--interactive] [--] [<packages>]...