--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints\Collection;
+
+@trigger_error('The '.__NAMESPACE__.'\Optional class is deprecated since version 2.3 and will be removed in 3.0. Use the Symfony\Component\Validator\Constraints\Optional class instead.', E_USER_DEPRECATED);
+
+use Symfony\Component\Validator\Constraints\Optional as BaseOptional;
+
+/**
+ * @Annotation
+ * @Target({"PROPERTY", "METHOD", "ANNOTATION"})
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @deprecated since version 2.3, to be removed in 3.0.
+ * Use {@link \Symfony\Component\Validator\Constraints\Optional} instead.
+ */
+class Optional extends BaseOptional
+{
+}