diff --git a/src/Illuminate/Foundation/Application.php b/src/Illuminate/Foundation/Application.php
index 928bc0ba4..ed43efbc7 100755
--- a/src/Illuminate/Foundation/Application.php
+++ b/src/Illuminate/Foundation/Application.php
@@ -861,7 +861,7 @@ public function prepareRequest(Request $request)
 	{
 		if ( ! is_null($this['config']['session.driver']) && ! $request->hasSession())
 		{
-			$request->setSession($this['session']->driver());
+			$request->setLaravelSession($this['session']->driver());
 		}
 
 		return $request;
diff --git a/src/Illuminate/Foundation/Console/Optimize/config.php b/src/Illuminate/Foundation/Console/Optimize/config.php
index 9b838ea48..ee3a13a24 100755
--- a/src/Illuminate/Foundation/Console/Optimize/config.php
+++ b/src/Illuminate/Foundation/Console/Optimize/config.php
@@ -68,7 +68,6 @@
     $basePath.'/vendor/laravel/framework/src/Illuminate/Database/DatabaseManager.php',
     $basePath.'/vendor/laravel/framework/src/Illuminate/Database/ConnectionResolverInterface.php',
     $basePath.'/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php',
-    $basePath.'/vendor/laravel/framework/src/Illuminate/Session/SessionInterface.php',
     $basePath.'/vendor/laravel/framework/src/Illuminate/Session/Middleware.php',
     $basePath.'/vendor/laravel/framework/src/Illuminate/Session/Store.php',
     $basePath.'/vendor/laravel/framework/src/Illuminate/Session/SessionManager.php',
diff --git a/src/Illuminate/Http/Request.php b/src/Illuminate/Http/Request.php
index 092c7c727..c190e75eb 100755
--- a/src/Illuminate/Http/Request.php
+++ b/src/Illuminate/Http/Request.php
@@ -1,10 +1,13 @@
 <?php namespace Illuminate\Http;
 
+use Illuminate\Session\SymfonySessionDecorator;
 use Illuminate\Support\Str;
 use SplFileInfo;
+use Symfony\Component\HttpFoundation\Exception\SessionNotFoundException;
 use Symfony\Component\HttpFoundation\InputBag;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
 
 class Request extends SymfonyRequest {
 
@@ -594,7 +597,34 @@ public static function createFromBase(SymfonyRequest $request)
 	}
 
 	/**
-	 * Get the session associated with the request.
+	 * Determine if the request contains a session instance.
+	 *
+	 * @param  bool  $skipIfUninitialized
+	 * @return bool
+	 */
+	#[\Override]
+	public function hasSession(bool $skipIfUninitialized = false): bool
+	{
+		return $this->session instanceof SymfonySessionDecorator;
+	}
+
+	/**
+	 * Get the Symfony session (decorator) associated with the request.
+	 *
+	 * @return \Symfony\Component\HttpFoundation\Session\SessionInterface
+	 *
+	 * @throws \Symfony\Component\HttpFoundation\Exception\SessionNotFoundException
+	 */
+	#[\Override]
+	public function getSession(): SessionInterface
+	{
+		return $this->hasSession()
+			? $this->session
+			: throw new SessionNotFoundException;
+	}
+
+	/**
+	 * Get the session store associated with the request.
 	 *
 	 * @return \Illuminate\Session\Store
 	 *
@@ -607,7 +637,18 @@ public function session()
 			throw new \RuntimeException("Session store not set on request.");
 		}
 
-		return $this->getSession();
+		return $this->session->store;
+	}
+
+	/**
+	 * Set the session instance on the request.
+	 *
+	 * @param  \Illuminate\Contracts\Session\Session  $session
+	 * @return void
+	 */
+	public function setLaravelSession($session)
+	{
+		$this->session = new SymfonySessionDecorator($session);
 	}
 
 }
diff --git a/src/Illuminate/Session/Middleware.php b/src/Illuminate/Session/Middleware.php
index e99937459..171eca4f1 100644
--- a/src/Illuminate/Session/Middleware.php
+++ b/src/Illuminate/Session/Middleware.php
@@ -2,6 +2,7 @@
 
 use Closure;
 use Carbon\Carbon;
+use Illuminate\Contracts\Session\Session;
 use Symfony\Component\HttpFoundation\Cookie;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -66,7 +67,7 @@ public function handle(Request $request, $type = HttpKernelInterface::MAIN_REQUE
 		{
 			$session = $this->startSession($request);
 
-			$request->setSession($session);
+			$request->setLaravelSession($session);
 		}
 
 		$response = $this->app->handle($request, $type, $catch);
@@ -105,7 +106,7 @@ public function checkRequestForArraySessions(Request $request)
 	 * Start the session for the given request.
 	 *
 	 * @param  \Symfony\Component\HttpFoundation\Request  $request
-	 * @return \Illuminate\Session\SessionInterface
+	 * @return \Illuminate\Contracts\Session\Session
 	 */
 	protected function startSession(Request $request)
 	{
@@ -119,10 +120,10 @@ protected function startSession(Request $request)
 	/**
 	 * Close the session handling for the request.
 	 *
-	 * @param  \Illuminate\Session\SessionInterface  $session
+	 * @param  \Illuminate\Contracts\Session\Session  $session
 	 * @return void
 	 */
-	protected function closeSession(SessionInterface $session)
+	protected function closeSession(Session $session)
 	{
 		$session->save();
 
@@ -145,10 +146,10 @@ protected function getUrl(Request $request)
 	/**
 	 * Remove the garbage from the session if necessary.
 	 *
-	 * @param  \Illuminate\Session\SessionInterface  $session
+	 * @param  \Illuminate\Contracts\Session\Session  $session
 	 * @return void
 	 */
-	protected function collectGarbage(SessionInterface $session)
+	protected function collectGarbage(Session $session)
 	{
 		$config = $this->manager->getSessionConfig();
 
@@ -183,10 +184,10 @@ protected function storeCurrentUrl(Request $request, $session)
 	 * Add the session cookie to the application response.
 	 *
 	 * @param  \Symfony\Component\HttpFoundation\Response  $response
-	 * @param  \Symfony\Component\HttpFoundation\Session\SessionInterface  $session
+	 * @param  \Illuminate\Contracts\Session\Session  $session
 	 * @return void
 	 */
-	protected function addCookieToResponse(Response $response, SessionInterface $session)
+	protected function addCookieToResponse(Response $response, Session $session)
 	{
 		$s = $session;
 
@@ -252,7 +253,7 @@ protected function sessionIsPersistent(?array $config = null)
 	 * Get the session implementation from the manager.
 	 *
 	 * @param  \Symfony\Component\HttpFoundation\Request  $request
-	 * @return \Illuminate\Session\SessionInterface
+	 * @return \Illuminate\Contracts\Session\Session
 	 */
 	public function getSession(Request $request)
 	{
diff --git a/src/Illuminate/Session/SessionInterface.php b/src/Illuminate/Session/SessionInterface.php
deleted file mode 100644
index 43537d412..000000000
--- a/src/Illuminate/Session/SessionInterface.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php namespace Illuminate\Session;
-
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Session\SessionInterface as BaseSessionInterface;
-
-interface SessionInterface extends BaseSessionInterface {
-
-	/**
-	 * Get the session handler instance.
-	 *
-	 * @return \SessionHandlerInterface
-	 */
-	public function getHandler();
-
-	/**
-	 * Determine if the session handler needs a request.
-	 *
-	 * @return bool
-	 */
-	public function handlerNeedsRequest();
-
-	/**
-	 * Set the request on the handler instance.
-	 *
-	 * @param  \Symfony\Component\HttpFoundation\Request  $request
-	 * @return void
-	 */
-	public function setRequestOnHandler(Request $request);
-
-}
diff --git a/src/Illuminate/Session/Store.php b/src/Illuminate/Session/Store.php
index 5204a6611..eba630f92 100755
--- a/src/Illuminate/Session/Store.php
+++ b/src/Illuminate/Session/Store.php
@@ -1,12 +1,11 @@
 <?php namespace Illuminate\Session;
 
+use Illuminate\Contracts\Session\Session;
 use Illuminate\Support\Str;
 use SessionHandlerInterface;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
-use Symfony\Component\HttpFoundation\Session\Storage\MetadataBag;
+use stdClass;
 
-class Store implements SessionInterface {
+class Store implements Session {
 
 	/**
 	 * The session ID.
@@ -29,27 +28,6 @@ class Store implements SessionInterface {
 	 */
 	protected $attributes = array();
 
-	/**
-	 * The session bags.
-	 *
-	 * @var array
-	 */
-	protected $bags = array();
-
-	/**
-	 * The meta-data bag instance.
-	 *
-	 * @var \Symfony\Component\HttpFoundation\Session\Storage\MetadataBag
-	 */
-	protected $metaBag;
-
-	/**
-	 * Local copies of the session bag data.
-	 *
-	 * @var array
-	 */
-	protected $bagData = array();
-
 	/**
 	 * The session handler implementation.
 	 *
@@ -77,11 +55,12 @@ public function __construct($name, SessionHandlerInterface $handler, $id = null)
 		$this->setId($id);
 		$this->name = $name;
 		$this->handler = $handler;
-		$this->metaBag = new MetadataBag;
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Start the session, reading the data from a handler.
+	 *
+	 * @return bool
 	 */
 	public function start(): bool
 	{
@@ -100,13 +79,6 @@ public function start(): bool
 	protected function loadSession()
 	{
 		$this->attributes = $this->readFromHandler();
-
-		foreach (array_merge($this->bags, array($this->metaBag)) as $bag)
-		{
-			$this->initializeLocalBag($bag);
-
-			$bag->initialize($this->bagData[$bag->getStorageKey()]);
-		}
 	}
 
 	/**
@@ -122,18 +94,9 @@ protected function readFromHandler()
 	}
 
 	/**
-	 * Initialize a bag in storage if it doesn't exist.
+	 * Get the current session ID.
 	 *
-	 * @param  \Symfony\Component\HttpFoundation\Session\SessionBagInterface  $bag
-	 * @return void
-	 */
-	protected function initializeLocalBag($bag)
-	{
-		$this->bagData[$bag->getStorageKey()] = $this->pull($bag->getStorageKey(), []);
-	}
-
-	/**
-	 * {@inheritdoc}
+	 * @return string
 	 */
 	public function getId(): string
     {
@@ -141,7 +104,10 @@ public function getId(): string
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Set the session ID.
+	 *
+	 * @param  string  $id
+	 * @return void
 	 */
 	public function setId($id)
 	{
@@ -175,7 +141,9 @@ protected function generateSessionId(): string
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Get the name of the session.
+	 *
+	 * @return string
 	 */
 	public function getName(): string
     {
@@ -183,7 +151,10 @@ public function getName(): string
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Set the name of the session.
+	 *
+	 * @param  string  $name
+	 * @return void
 	 */
 	public function setName($name)
 	{
@@ -191,9 +162,11 @@ public function setName($name)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Flush the session data and regenerate the ID.
+	 *
+	 * @return bool
 	 */
-	public function invalidate($lifetime = null): bool
+	public function invalidate(): bool
     {
 		$this->attributes = array();
 
@@ -203,9 +176,12 @@ public function invalidate($lifetime = null): bool
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Generate a new session ID for the session.
+	 *
+	 * @param  bool  $destroy
+	 * @return bool
 	 */
-	public function migrate($destroy = false, $lifetime = null): bool
+	public function migrate($destroy = false): bool
     {
 		if ($destroy) $this->handler->destroy($this->getId());
 
@@ -226,12 +202,12 @@ public function regenerate($destroy = false)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Save the session data to storage.
+	 *
+	 * @return void
 	 */
 	public function save()
 	{
-		$this->addBagDataToSession();
-
 		$this->ageFlashData();
 
 		$this->handler->write($this->getId(), serialize($this->attributes));
@@ -239,19 +215,6 @@ public function save()
 		$this->started = false;
 	}
 
-	/**
-	 * Merge all of the bag data into the session.
-	 *
-	 * @return void
-	 */
-	protected function addBagDataToSession()
-	{
-		foreach (array_merge($this->bags, array($this->metaBag)) as $bag)
-		{
-			$this->put($bag->getStorageKey(), $this->bagData[$bag->getStorageKey()]);
-		}
-	}
-
 	/**
 	 * Age the flash data for the session.
 	 *
@@ -267,7 +230,28 @@ public function ageFlashData()
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Checks if a key exists.
+	 *
+	 * @param  string|array  $key
+	 * @return bool
+	 */
+	public function exists($key): bool
+    {
+		$placeholder = new stdClass;
+
+		foreach (is_array($key) ? $key : func_get_args() as $k)
+		{
+			if ($this->get($k, $placeholder) === $placeholder) return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Determine if a key is present and not null.
+	 *
+	 * @param  string  $name
+	 * @return bool
 	 */
 	public function has($name): bool
     {
@@ -275,7 +259,11 @@ public function has($name): bool
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Get an item from the session.
+	 *
+	 * @param  string  $name
+	 * @param  mixed  $default
+	 * @return mixed
 	 */
 	public function get($name, $default = null): mixed
     {
@@ -325,7 +313,11 @@ public function getOldInput($key = null, $default = null)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Set a key / value pair in the session.
+	 *
+	 * @param  string  $name
+	 * @param  mixed   $value
+	 * @return void
 	 */
 	public function set($name, $value)
 	{
@@ -372,7 +364,8 @@ public function push($key, $value)
 	 * @param  mixed   $value
 	 * @return void
 	 */
-	public function flash($key, $value)
+	// ponytail: keeps 4.2 flash.{new,old} keys, not v13 _flash.* — align at the illuminate/session swap when live sessions drain.
+	public function flash($key, $value = true)
 	{
 		$this->put($key, $value);
 
@@ -444,7 +437,9 @@ protected function removeFromOldFlashData(array $keys)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Get all of the session data.
+	 *
+	 * @return array
 	 */
 	public function all(): array
     {
@@ -452,7 +447,10 @@ public function all(): array
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Replace the given session attributes entirely.
+	 *
+	 * @param  array  $attributes
+	 * @return void
 	 */
 	public function replace(array $attributes)
 	{
@@ -463,7 +461,10 @@ public function replace(array $attributes)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Remove an item from the session, returning its value.
+	 *
+	 * @param  string  $name
+	 * @return mixed
 	 */
 	public function remove($name): mixed
     {
@@ -471,9 +472,9 @@ public function remove($name): mixed
 	}
 
 	/**
-	 * Remove an item from the session.
+	 * Remove one or many items from the session.
 	 *
-	 * @param  string  $key
+	 * @param  string|array  $key
 	 * @return void
 	 */
 	public function forget($key)
@@ -481,19 +482,6 @@ public function forget($key)
 		array_forget($this->attributes, $key);
 	}
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function clear()
-	{
-		$this->attributes = array();
-
-		foreach ($this->bags as $bag)
-		{
-			$bag->clear();
-		}
-	}
-
 	/**
 	 * Remove all of the items from the session.
 	 *
@@ -501,55 +489,19 @@ public function clear()
 	 */
 	public function flush()
 	{
-		$this->clear();
+		$this->attributes = array();
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * Determine if the session has been started.
+	 *
+	 * @return bool
 	 */
 	public function isStarted(): bool
     {
 		return $this->started;
 	}
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function registerBag(SessionBagInterface $bag)
-	{
-		$this->bags[$bag->getStorageKey()] = $bag;
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function getBag($name): SessionBagInterface
-    {
-		return array_get($this->bags, $name, function()
-		{
-			throw new \InvalidArgumentException("Bag not registered.");
-		});
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function getMetadataBag(): MetadataBag
-    {
-		return $this->metaBag;
-	}
-
-	/**
-	 * Get the raw bag data array for a given bag.
-	 *
-	 * @param  string  $name
-	 * @return array
-	 */
-	public function getBagData($name)
-	{
-		return array_get($this->bagData, $name, array());
-	}
-
 	/**
 	 * Get the CSRF token value.
 	 *
@@ -638,10 +590,10 @@ public function handlerNeedsRequest()
 	/**
 	 * Set the request on the handler instance.
 	 *
-	 * @param  \Symfony\Component\HttpFoundation\Request  $request
+	 * @param  \Illuminate\Http\Request  $request
 	 * @return void
 	 */
-	public function setRequestOnHandler(Request $request)
+	public function setRequestOnHandler($request)
 	{
 		if ($this->handlerNeedsRequest())
 		{
diff --git a/src/Illuminate/Session/SymfonySessionDecorator.php b/src/Illuminate/Session/SymfonySessionDecorator.php
new file mode 100644
index 000000000..54a899ea7
--- /dev/null
+++ b/src/Illuminate/Session/SymfonySessionDecorator.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Illuminate\Session;
+
+use BadMethodCallException;
+use Illuminate\Contracts\Session\Session;
+use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
+use Symfony\Component\HttpFoundation\Session\Storage\MetadataBag;
+
+class SymfonySessionDecorator implements SessionInterface
+{
+    /**
+     * The underlying Laravel session store.
+     *
+     * @var \Illuminate\Contracts\Session\Session
+     */
+    public readonly Session $store;
+
+    /**
+     * Create a new session decorator.
+     *
+     * @param  \Illuminate\Contracts\Session\Session  $store
+     */
+    public function __construct(Session $store)
+    {
+        $this->store = $store;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function start(): bool
+    {
+        return $this->store->start();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getId(): string
+    {
+        return $this->store->getId();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setId(string $id): void
+    {
+        $this->store->setId($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName(): string
+    {
+        return $this->store->getName();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setName(string $name): void
+    {
+        $this->store->setName($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function invalidate(?int $lifetime = null): bool
+    {
+        $this->store->invalidate();
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function migrate(bool $destroy = false, ?int $lifetime = null): bool
+    {
+        $this->store->migrate($destroy);
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(): void
+    {
+        $this->store->save();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has(string $name): bool
+    {
+        return $this->store->has($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get(string $name, mixed $default = null): mixed
+    {
+        return $this->store->get($name, $default);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set(string $name, mixed $value): void
+    {
+        $this->store->put($name, $value);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function all(): array
+    {
+        return $this->store->all();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function replace(array $attributes): void
+    {
+        $this->store->replace($attributes);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function remove(string $name): mixed
+    {
+        return $this->store->remove($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear(): void
+    {
+        $this->store->flush();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isStarted(): bool
+    {
+        return $this->store->isStarted();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws \BadMethodCallException
+     */
+    public function registerBag(SessionBagInterface $bag): void
+    {
+        throw new BadMethodCallException('Method not implemented by Laravel.');
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws \BadMethodCallException
+     */
+    public function getBag(string $name): SessionBagInterface
+    {
+        throw new BadMethodCallException('Method not implemented by Laravel.');
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws \BadMethodCallException
+     */
+    public function getMetadataBag(): MetadataBag
+    {
+        throw new BadMethodCallException('Method not implemented by Laravel.');
+    }
+}
diff --git a/tests/Http/HttpRequestTest.php b/tests/Http/HttpRequestTest.php
index 840aa6cfd..656b83737 100755
--- a/tests/Http/HttpRequestTest.php
+++ b/tests/Http/HttpRequestTest.php
@@ -368,7 +368,7 @@ public function testOldMethodCallsSession()
 		$request = Request::create('/', 'GET');
 		$session = m::mock(Store::class);
 		$session->shouldReceive('getOldInput')->once()->with('foo', 'bar')->andReturn('boom');
-		$request->setSession($session);
+		$request->setLaravelSession($session);
 		$this->assertEquals('boom', $request->old('foo', 'bar'));
 	}
 
@@ -378,7 +378,7 @@ public function testFlushMethodCallsSession()
 		$request = Request::create('/', 'GET');
 		$session = m::mock(Store::class);
 		$session->shouldReceive('flashInput')->once();
-		$request->setSession($session);
+		$request->setLaravelSession($session);
 		$request->flush();
 	}
 
diff --git a/tests/Routing/RoutingUrlGeneratorTest.php b/tests/Routing/RoutingUrlGeneratorTest.php
index 6c3b5d363..700aee701 100755
--- a/tests/Routing/RoutingUrlGeneratorTest.php
+++ b/tests/Routing/RoutingUrlGeneratorTest.php
@@ -265,7 +265,7 @@ public function testPreviousUrlFromSession(): void
         $request = Illuminate\Http\Request::create('http://www.foo.com/some');
 
         $session->shouldReceive('previousUrl')->andReturn('http://www.foo.com/previous-page');
-        $request->setSession($session);
+        $request->setLaravelSession($session);
 
         $url = new UrlGenerator(
 			new Illuminate\Routing\RouteCollection,
diff --git a/tests/Session/SessionMiddlewareTest.php b/tests/Session/SessionMiddlewareTest.php
index 0cac3622a..99f742216 100644
--- a/tests/Session/SessionMiddlewareTest.php
+++ b/tests/Session/SessionMiddlewareTest.php
@@ -17,7 +17,7 @@ protected function tearDown(): void
 
     public function testSessionIsProperlyStartedAndClosed()
     {
-        $request = Symfony\Component\HttpFoundation\Request::create('http://www.foo.com/some', 'GET');
+        $request = Illuminate\Http\Request::create('http://www.foo.com/some', 'GET');
         $response = new Symfony\Component\HttpFoundation\Response;
 
 		$middle = new Illuminate\Session\Middleware(
diff --git a/tests/Session/SessionStoreTest.php b/tests/Session/SessionStoreTest.php
index 81337c841..85553fcdd 100644
--- a/tests/Session/SessionStoreTest.php
+++ b/tests/Session/SessionStoreTest.php
@@ -6,7 +6,6 @@
 use L4\Tests\BackwardCompatibleTestCase;
 use Mockery as m;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Session\Storage\MetadataBag;
 
 class SessionStoreTest extends BackwardCompatibleTestCase
 {
@@ -23,15 +22,12 @@ public function testSessionIsLoadedFromHandler()
         $session->getHandler()->shouldReceive('read')->once()->with($this->getSessionId())->andReturn(
             serialize(['foo' => 'bar', 'bagged' => ['name' => 'taylor']])
         );
-        $session->registerBag(new Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag('bagged'));
 		$session->start();
 
 		$this->assertEquals('bar', $session->get('foo'));
 		$this->assertEquals('baz', $session->get('bar', 'baz'));
 		$this->assertTrue($session->has('foo'));
 		$this->assertFalse($session->has('bar'));
-		$this->assertEquals('taylor', $session->getBag('bagged')->get('name'));
-		$this->assertInstanceOf(MetadataBag::class, $session->getMetadataBag());
 		$this->assertTrue($session->isStarted());
 
 		$session->put('baz', 'boom');
@@ -39,11 +35,20 @@ public function testSessionIsLoadedFromHandler()
 	}
 
 
-	public function testSessionGetBagException()
+	public function testExists()
 	{
-		$this->expectException('InvalidArgumentException');
 		$session = $this->getSession();
-		$session->getBag('doesNotExist');
+		$session->put('foo', 'bar');
+		$session->put('baz', null);
+
+		$this->assertTrue($session->exists('foo'));
+		$this->assertTrue($session->exists('baz'));
+		$this->assertTrue($session->exists(['foo', 'baz']));
+		$this->assertFalse($session->exists(['foo', 'bar']));
+		$this->assertFalse($session->exists('bar'));
+
+		$this->assertTrue($session->has('foo'));
+		$this->assertFalse($session->has('baz'));
 	}
 
 
@@ -119,7 +124,6 @@ public function testSessionIsProperlySaved()
 					'new' => [],
 					'old' => ['baz'],
                 ],
-				'_sf2_meta' => $session->getBagData('_sf2_meta'),
             ])
 		);
 		$session->save();
@@ -219,25 +223,15 @@ public function testRemove()
 	}
 
 
-	public function testClear()
+	public function testFlush()
 	{
 		$session = $this->getSession();
-		$session->set('foo', 'bar');
-
-		$bag = new Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag('bagged');
-		$bag->set('qu', 'ux');
-		$session->registerBag($bag);
-
-		$session->clear();
-		$this->assertFalse($session->has('foo'));
-		$this->assertFalse($session->getBag('bagged')->has('qu'));
-
-		$session->set('foo', 'bar');
-		$session->getBag('bagged')->set('qu', 'ux');
+		$session->put('foo', 'bar');
 
 		$session->flush();
+
 		$this->assertFalse($session->has('foo'));
-		$this->assertFalse($session->getBag('bagged')->has('qu'));
+		$this->assertEmpty($session->all());
 	}