diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php b/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
index 3f65da3c5..8bfda6450 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
@@ -327,7 +327,7 @@ class ClassMetadataFactory implements ClassMetadataFactoryInterface
                     if (!$class->discriminatorColumn) {
                         throw MappingException::missingDiscriminatorColumn($class->name);
                     }
-                } else if ($parent && !in_array($class->name, array_values($class->discriminatorMap))) {
+                } else if ($parent && !$class->reflClass->isAbstract() && !in_array($class->name, array_values($class->discriminatorMap))) {
                     // enforce discriminator map for all entities of an inheritance hierachy, otherwise problems will occur.
                     throw MappingException::mappedClassNotPartOfDiscriminatorMap($class->name, $class->rootEntityName);
                 }
diff --git a/lib/Doctrine/ORM/Mapping/Driver/DoctrineAnnotations.php b/lib/Doctrine/ORM/Mapping/Driver/DoctrineAnnotations.php
index 84d2cd1c8..532ee1c77 100644
--- a/lib/Doctrine/ORM/Mapping/Driver/DoctrineAnnotations.php
+++ b/lib/Doctrine/ORM/Mapping/Driver/DoctrineAnnotations.php
@@ -23,24 +23,41 @@ use Doctrine\Common\Annotations\Annotation;
 
 /* Annotations */
 
+/** @Annotation */
 final class Entity extends Annotation {
     public $repositoryClass;
     public $readOnly = false;
 }
+
+/** @Annotation */
 final class MappedSuperclass extends Annotation {}
+
+/** @Annotation */
 final class InheritanceType extends Annotation {}
+
+/** @Annotation */
 final class DiscriminatorColumn extends Annotation {
     public $name;
     public $fieldName; // field name used in non-object hydration (array/scalar)
     public $type;
     public $length;
 }
+
+/** @Annotation */
 final class DiscriminatorMap extends Annotation {}
+
+/** @Annotation */
 final class Id extends Annotation {}
+
+/** @Annotation */
 final class GeneratedValue extends Annotation {
     public $strategy = 'AUTO';
 }
+
+/** @Annotation */
 final class Version extends Annotation {}
+
+/** @Annotation */
 final class JoinColumn extends Annotation {
     public $name;
     public $fieldName; // field name used in non-object hydration (array/scalar)
@@ -51,7 +68,11 @@ final class JoinColumn extends Annotation {
     public $onUpdate;
     public $columnDefinition;
 }
+
+/** @Annotation */
 final class JoinColumns extends Annotation {}
+
+/** @Annotation */
 final class Column extends Annotation {
     public $type = 'string';
     public $length;
@@ -65,6 +86,8 @@ final class Column extends Annotation {
     public $options = array();
     public $columnDefinition;
 }
+
+/** @Annotation */
 final class OneToOne extends Annotation {
     public $targetEntity;
     public $mappedBy;
@@ -73,6 +96,8 @@ final class OneToOne extends Annotation {
     public $fetch = 'LAZY';
     public $orphanRemoval = false;
 }
+
+/** @Annotation */
 final class OneToMany extends Annotation {
     public $mappedBy;
     public $targetEntity;
@@ -81,12 +106,16 @@ final class OneToMany extends Annotation {
     public $orphanRemoval = false;
     public $indexBy;
 }
+
+/** @Annotation */
 final class ManyToOne extends Annotation {
     public $targetEntity;
     public $cascade;
     public $fetch = 'LAZY';
     public $inversedBy;
 }
+
+/** @Annotation */
 final class ManyToMany extends Annotation {
     public $targetEntity;
     public $mappedBy;
@@ -95,50 +124,83 @@ final class ManyToMany extends Annotation {
     public $fetch = 'LAZY';
     public $indexBy;
 }
+
+/** @Annotation */
 final class ElementCollection extends Annotation {
     public $tableName;
 }
+
+/** @Annotation */
 final class Table extends Annotation {
     public $name;
     public $schema;
     public $indexes;
     public $uniqueConstraints;
 }
+
+/** @Annotation */
 final class UniqueConstraint extends Annotation {
     public $name;
     public $columns;
 }
+
+/** @Annotation */
 final class Index extends Annotation {
     public $name;
     public $columns;
 }
+
+/** @Annotation */
 final class JoinTable extends Annotation {
     public $name;
     public $schema;
     public $joinColumns = array();
     public $inverseJoinColumns = array();
 }
+
+/** @Annotation */
 final class SequenceGenerator extends Annotation {
     public $sequenceName;
     public $allocationSize = 1;
     public $initialValue = 1;
 }
+
+/** @Annotation */
 final class ChangeTrackingPolicy extends Annotation {}
+
+/** @Annotation */
 final class OrderBy extends Annotation {}
 
+/** @Annotation */
 final class NamedQueries extends Annotation {}
+
+/** @Annotation */
 final class NamedQuery extends Annotation {
     public $name;
     public $query;
 }
 
 /* Annotations for lifecycle callbacks */
+/** @Annotation */
 final class HasLifecycleCallbacks extends Annotation {}
-final class PrePersist extends Annotation {}
-final class PostPersist extends Annotation {}
-final class PreUpdate extends Annotation {}
-final class PostUpdate extends Annotation {}
-final class PreRemove extends Annotation {}
-final class PostRemove extends Annotation {}
-final class PostLoad extends Annotation {}
 
+/** @Annotation */
+final class PrePersist extends Annotation {}
+
+/** @Annotation */
+final class PostPersist extends Annotation {}
+
+/** @Annotation */
+final class PreUpdate extends Annotation {}
+
+/** @Annotation */
+final class PostUpdate extends Annotation {}
+
+/** @Annotation */
+final class PreRemove extends Annotation {}
+
+/** @Annotation */
+final class PostRemove extends Annotation {}
+
+/** @Annotation */
+final class PostLoad extends Annotation {}
diff --git a/lib/Doctrine/ORM/Version.php b/lib/Doctrine/ORM/Version.php
index 7041ecf03..e459dceb6 100644
--- a/lib/Doctrine/ORM/Version.php
+++ b/lib/Doctrine/ORM/Version.php
@@ -36,7 +36,7 @@ class Version
     /**
      * Current Doctrine Version
      */
-    const VERSION = '2.1.0RC2-DEV';
+    const VERSION = '2.1.0-DEV';
 
     /**
      * Compares a Doctrine version with the current one.
diff --git a/lib/vendor/doctrine-common b/lib/vendor/doctrine-common
index 565674b9b..6a74bf90f 160000
--- a/lib/vendor/doctrine-common
+++ b/lib/vendor/doctrine-common
@@ -1 +1 @@
-Subproject commit 565674b9b376edbc5e31070e91fd85ea6dbd5d60
+Subproject commit 6a74bf90f5fcf6b404f49aee6c11b78fbd568c6c
diff --git a/lib/vendor/doctrine-dbal b/lib/vendor/doctrine-dbal
index 2cb22496a..be3790059 160000
--- a/lib/vendor/doctrine-dbal
+++ b/lib/vendor/doctrine-dbal
@@ -1 +1 @@
-Subproject commit 2cb22496a732029373d98ff9e4d54a7187ee9bb8
+Subproject commit be3790059cc43b674a55548eb42d5d25846ea6a9
diff --git a/tests/Doctrine/Tests/ORM/Tools/Export/xml/Doctrine.Tests.ORM.Tools.Export.User.dcm.xml b/tests/Doctrine/Tests/ORM/Tools/Export/xml/Doctrine.Tests.ORM.Tools.Export.User.dcm.xml
index 11bb6ac95..de638b236 100644
--- a/tests/Doctrine/Tests/ORM/Tools/Export/xml/Doctrine.Tests.ORM.Tools.Export.User.dcm.xml
+++ b/tests/Doctrine/Tests/ORM/Tools/Export/xml/Doctrine.Tests.ORM.Tools.Export.User.dcm.xml
@@ -26,12 +26,12 @@
         </one-to-one>
         
         <one-to-many field="phonenumbers" target-entity="Doctrine\Tests\ORM\Tools\Export\Phonenumber" mapped-by="user">
-            <order-by>
-                <order-by-field name="number" direction="ASC" />
-            </order-by>
             <cascade>
                 <cascade-persist/>
             </cascade>
+            <order-by>
+                <order-by-field name="number" direction="ASC" />
+            </order-by>
         </one-to-many>
         
         <many-to-many field="groups" target-entity="Doctrine\Tests\ORM\Tools\Export\Group">