diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..7648735
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,18 @@
+# CHANGELOG
+
+
+v1.1.0 under development
+------------------------
+- Add `SourceInterface $source` property to the `MapperEvent`
+
+v1.0.0 (22.12.2021)
+-------------------
+- Add behaviors:
+  - `CreatedAt`
+  - `OptimisticLock`
+  - `SoftDelete`
+  - `UpdatedAt`
+  - `EventListener`
+  - `Hook`
+- Add `EventDrivenCommandGenerator` with custom event dispatcher.
+- Supported events: `OnCreate`, `OnDelete` and `OnUpdate`
diff --git a/src/Event/MapperEvent.php b/src/Event/MapperEvent.php
index 29d8946..7200860 100644
--- a/src/Event/MapperEvent.php
+++ b/src/Event/MapperEvent.php
@@ -7,6 +7,7 @@
 use Cycle\ORM\Heap\Node;
 use Cycle\ORM\Heap\State;
 use Cycle\ORM\MapperInterface;
+use Cycle\ORM\Select\SourceInterface;
 
 /**
  * @internal
@@ -21,6 +22,7 @@ public function __construct(
         public object $entity,
         public Node $node,
         public State $state,
+        public SourceInterface $source,
         public \DateTimeImmutable $timestamp
     ) {
     }
diff --git a/src/EventDrivenCommandGenerator.php b/src/EventDrivenCommandGenerator.php
index 0c51ca8..ef94a7d 100644
--- a/src/EventDrivenCommandGenerator.php
+++ b/src/EventDrivenCommandGenerator.php
@@ -5,15 +5,15 @@
 namespace Cycle\ORM\Entity\Behavior;
 
 use Cycle\ORM\Command\CommandInterface;
-use Cycle\ORM\ORMInterface;
-use Cycle\ORM\SchemaInterface;
-use Cycle\ORM\Transaction\CommandGenerator;
-use Cycle\ORM\Transaction\Tuple;
 use Cycle\ORM\Entity\Behavior\Dispatcher\Dispatcher;
 use Cycle\ORM\Entity\Behavior\Dispatcher\ListenerProvider;
 use Cycle\ORM\Entity\Behavior\Event\Mapper\Command\OnCreate;
 use Cycle\ORM\Entity\Behavior\Event\Mapper\Command\OnDelete;
 use Cycle\ORM\Entity\Behavior\Event\Mapper\Command\OnUpdate;
+use Cycle\ORM\ORMInterface;
+use Cycle\ORM\SchemaInterface;
+use Cycle\ORM\Transaction\CommandGenerator;
+use Cycle\ORM\Transaction\Tuple;
 use Psr\Container\ContainerInterface;
 use Psr\EventDispatcher\EventDispatcherInterface;
 
@@ -22,7 +22,6 @@ final class EventDrivenCommandGenerator extends CommandGenerator
     private EventDispatcherInterface $eventDispatcher;
     private \DateTimeImmutable $timestamp;
 
-    // todo: add custom listener interface
     public function __construct(SchemaInterface $schema, ContainerInterface $container)
     {
         $listenerProvider = new ListenerProvider($schema, $container);
@@ -33,10 +32,11 @@ public function __construct(SchemaInterface $schema, ContainerInterface $contain
     protected function storeEntity(ORMInterface $orm, Tuple $tuple, bool $isNew): ?CommandInterface
     {
         $role = $tuple->node->getRole();
+        $src = $orm->getSource($role);
 
         $event = $isNew
-            ? new OnCreate($role, $tuple->mapper, $tuple->entity, $tuple->node, $tuple->state, $this->timestamp)
-            : new OnUpdate($role, $tuple->mapper, $tuple->entity, $tuple->node, $tuple->state, $this->timestamp);
+            ? new OnCreate($role, $tuple->mapper, $tuple->entity, $tuple->node, $tuple->state, $src, $this->timestamp)
+            : new OnUpdate($role, $tuple->mapper, $tuple->entity, $tuple->node, $tuple->state, $src, $this->timestamp);
 
         $event->command = parent::storeEntity($orm, $tuple, $isNew);
 
@@ -55,8 +55,11 @@ protected function generateParentStoreCommand(
         bool $isNew
     ): ?CommandInterface {
         $mapper = $orm->getMapper($parentRole);
+        $source = $orm->getSource($parentRole);
+
+        $event =
+            new OnCreate($parentRole, $mapper, $tuple->entity, $tuple->node, $tuple->state, $source, $this->timestamp);
 
-        $event = new OnCreate($parentRole, $mapper, $tuple->entity, $tuple->node, $tuple->state, $this->timestamp);
         $event->command = $isNew
             ? $mapper->queueCreate($tuple->entity, $tuple->node, $tuple->state)
             : $mapper->queueUpdate($tuple->entity, $tuple->node, $tuple->state);
@@ -69,7 +72,17 @@ protected function generateParentStoreCommand(
     protected function deleteEntity(ORMInterface $orm, Tuple $tuple): ?CommandInterface
     {
         $role = $tuple->node->getRole();
-        $event = new OnDelete($role, $tuple->mapper, $tuple->entity, $tuple->node, $tuple->state, $this->timestamp);
+        $source = $orm->getSource($role);
+
+        $event = new OnDelete(
+            $role,
+            $tuple->mapper,
+            $tuple->entity,
+            $tuple->node,
+            $tuple->state,
+            $source,
+            $this->timestamp
+        );
 
         $event->command = parent::deleteEntity($orm, $tuple);