diff --git a/docs b/docs
index a0aae4d1e..07535f4de 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit a0aae4d1e264c9b56469a47d67780b7c345c4672
+Subproject commit 07535f4de8d8ee6b845ef36ff572bbc2ff1d6fe5
diff --git a/phpunit.xml b/phpunit.xml
index edca29a03..43deaaebc 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -9,7 +9,7 @@
   convertNoticesToExceptions="true"
   convertWarningsToExceptions="true"
   processIsolation="false"
-  stopOnFailure="true">
+>
   <coverage>
     <include>
       <directory suffix=".php">src</directory>
diff --git a/src/API.php b/src/API.php
index 70b60cd4f..d57a8ef41 100644
--- a/src/API.php
+++ b/src/API.php
@@ -101,6 +101,12 @@ final class API extends AbstractAPI
      * @var int
      */
     public const LOGGED_IN = 3;
+    /**
+     * We're logged out, the session will be deleted ASAP.
+     *
+     * @var int
+     */
+    public const LOGGED_OUT = 4;
     /**
      * This peer is a user.
      *
diff --git a/src/APIWrapper.php b/src/APIWrapper.php
index a18a2fd0a..2c05f0552 100644
--- a/src/APIWrapper.php
+++ b/src/APIWrapper.php
@@ -98,6 +98,10 @@ final class APIWrapper
         $this->API->waitForInit();
         $API = $this->API;
 
+        if ($API->authorized === API::LOGGED_OUT) {
+            return false;
+        }
+
         $this->session->serialize(
             $API->serializeSession($this),
             $this->session->getSessionPath(),
diff --git a/src/InternalDoc.php b/src/InternalDoc.php
index 37f845995..3885c6428 100644
--- a/src/InternalDoc.php
+++ b/src/InternalDoc.php
@@ -1269,6 +1269,11 @@ abstract class InternalDoc
     {
         $this->wrapper->getAPI()->logger($param, $level, $file);
     }
+
+    public function logout(): void
+    {
+        $this->wrapper->getAPI()->logout();
+    }
     /**
      * Start MadelineProto's update handling loop, or run the provided async callable.
      *
diff --git a/src/Ipc/Client.php b/src/Ipc/Client.php
index 742edd027..18ee32a91 100644
--- a/src/Ipc/Client.php
+++ b/src/Ipc/Client.php
@@ -141,6 +141,11 @@ final class Client extends ClientAbstract
         return true;
     }
 
+    public function getLogger(): Logger
+    {
+        return $this->logger;
+    }
+    
     /** @internal */
     public function getQrLoginCancellation(): Cancellation
     {
diff --git a/src/Ipc/Runner/entry.php b/src/Ipc/Runner/entry.php
index c4a6122a9..b70e2abb3 100644
--- a/src/Ipc/Runner/entry.php
+++ b/src/Ipc/Runner/entry.php
@@ -137,7 +137,10 @@ use Webmozart\Assert\Assert;
             Logger::log("$e", Logger::FATAL_ERROR);
             Logger::log('Got exception in IPC server, exiting...', Logger::FATAL_ERROR);
             $ipc = $session->getIpcState();
-            if (!($ipc && $ipc->getStartupId() === $runnerId && !$ipc->getException())) {
+            if (!($ipc && $ipc->getStartupId() === $runnerId && !$ipc->getException())
+                && $API
+                && $API->getAuthorization() !== API::LOGGED_OUT
+            ) {
                 Logger::log('Reporting error!');
                 $session->storeIpcState(new IpcState($runnerId, $e));
                 Logger::log('Reported error!');
diff --git a/src/MTProto.php b/src/MTProto.php
index 08282fd7c..feb58a326 100644
--- a/src/MTProto.php
+++ b/src/MTProto.php
@@ -475,6 +475,9 @@ final class MTProto implements TLCallback, LoggerGetter
         if (self::$references) {
             Logger::log('Prompting final serialization (SHUTDOWN)...');
             foreach (self::$references as $instance) {
+                if ($instance->authorized === API::LOGGED_OUT) {
+                    continue;
+                }
                 $instance->wrapper->serialize();
             }
             Logger::log('Done final serialization (SHUTDOWN)!');
@@ -1122,6 +1125,9 @@ final class MTProto implements TLCallback, LoggerGetter
             }
         }
         $this->logger->logger('Unreferenced instance');
+        if ($this->authorized === API::LOGGED_OUT) {
+            $this->wrapper->getSession()->delete();
+        }
     }
     /**
      * Destructor.
diff --git a/src/MTProtoSession/ResponseHandler.php b/src/MTProtoSession/ResponseHandler.php
index c8a4f6041..c10d09d21 100644
--- a/src/MTProtoSession/ResponseHandler.php
+++ b/src/MTProtoSession/ResponseHandler.php
@@ -326,6 +326,7 @@ trait ResponseHandler
                             $phone = isset($this->API->authorization['user']['phone']) ? '+' . $this->API->authorization['user']['phone'] : '???';
                             $this->logger->logger(\sprintf(Lang::$current_lang['account_banned'], $phone), Logger::FATAL_ERROR);
                         }
+                        $this->API->logout();
                         return fn () => new RPCErrorException($response['error_message'], $response['error_code'], $request->getConstructor());
                     case 'AUTH_KEY_UNREGISTERED':
                     case 'AUTH_KEY_INVALID':
@@ -345,6 +346,7 @@ trait ResponseHandler
                             $this->logger->logger('Permanent auth key was main authorized key, logging out...', Logger::FATAL_ERROR);
                             $phone = isset($this->API->authorization['user']['phone']) ? '+' . $this->API->authorization['user']['phone'] : 'you are currently using';
                             $this->logger->logger(\sprintf(Lang::$current_lang['account_banned'], $phone), Logger::FATAL_ERROR);
+                            $this->API->logout();
                             return fn () => new RPCErrorException($response['error_message'], $response['error_code'], $request->getConstructor());
                         }
                         EventLoop::queue(function () use ($request): void {
diff --git a/src/SessionPaths.php b/src/SessionPaths.php
index fbfe4c1bd..95e2394fe 100644
--- a/src/SessionPaths.php
+++ b/src/SessionPaths.php
@@ -21,6 +21,8 @@ declare(strict_types=1);
 namespace danog\MadelineProto;
 
 use danog\MadelineProto\Ipc\IpcState;
+use RecursiveDirectoryIterator;
+use RecursiveIteratorIterator;
 
 use const LOCK_EX;
 use const LOCK_SH;
@@ -29,10 +31,12 @@ use const PHP_MINOR_VERSION;
 use const PHP_VERSION;
 
 use function Amp\File\createDirectory;
+use function Amp\File\deleteDirectory;
 use function Amp\File\deleteFile;
 use function Amp\File\exists;
 use function Amp\File\isDirectory;
 use function Amp\File\isFile;
+use function Amp\File\listFiles;
 use function Amp\File\move;
 use function Amp\File\openFile;
 use function Amp\File\write;
@@ -109,6 +113,21 @@ final class SessionPaths
             }
         }
     }
+    /**
+     * Deletes session.
+     */
+    public function delete(): void
+    {
+        if (file_exists($this->sessionDirectoryPath)) {
+            foreach (scandir($this->sessionDirectoryPath) as $f) {
+                if ($f === '.' || $f === '..') {
+                    continue;
+                }
+                unlink($this->sessionDirectoryPath.DIRECTORY_SEPARATOR.$f);
+            }
+            rmdir($this->sessionDirectoryPath);
+        }
+    }
     /**
      * Serialize object to file.
      */
diff --git a/src/Wrappers/Login.php b/src/Wrappers/Login.php
index b9a26875b..ae65b66c8 100644
--- a/src/Wrappers/Login.php
+++ b/src/Wrappers/Login.php
@@ -24,15 +24,19 @@ use Amp\Cancellation;
 use Amp\CancelledException;
 use Amp\DeferredCancellation;
 use Amp\DeferredFuture;
+use Amp\SignalException;
 use AssertionError;
 use danog\MadelineProto\API;
 use danog\MadelineProto\Exception;
 use danog\MadelineProto\Lang;
 use danog\MadelineProto\Logger;
+use danog\MadelineProto\LogoutException;
+use danog\MadelineProto\Magic;
 use danog\MadelineProto\MTProto\PermAuthKey;
 use danog\MadelineProto\MTProtoTools\PasswordCalculator;
 use danog\MadelineProto\RPCErrorException;
 use danog\MadelineProto\Settings;
+use danog\MadelineProto\Shutdown;
 use danog\MadelineProto\TL\Types\LoginQrCode;
 use danog\MadelineProto\Tools;
 
@@ -142,6 +146,19 @@ trait Login
         $c->cancel();
         return $c->getCancellation();
     }
+    public function logout(): void
+    {
+        if ($this->authorized === API::LOGGED_IN) {
+            $this->authorized = API::LOGGED_OUT;
+            $this->methodCallAsyncRead('auth.logOut');
+        }
+        $this->authorized = API::LOGGED_OUT;
+        if ($this->hasEventHandler()) {
+            $this->stop();
+        } else {
+            $this->ipcServer?->stop();
+        }
+    }
     /** @internal */
     public function waitQrLogin(): void
     {
diff --git a/tests/danog/MadelineProto/DataCenterTest.php b/tests/danog/MadelineProto/DataCenterTest.php
index ce2dd91a7..fd03c5edd 100644
--- a/tests/danog/MadelineProto/DataCenterTest.php
+++ b/tests/danog/MadelineProto/DataCenterTest.php
@@ -5,8 +5,8 @@ declare(strict_types=1);
 namespace danog\MadelineProto\Test;
 
 use Amp\PHPUnit\AsyncTestCase;
+use danog\MadelineProto\API;
 use danog\MadelineProto\Logger;
-use danog\MadelineProto\MTProto;
 use danog\MadelineProto\Settings;
 use danog\MadelineProto\Stream\MTProtoTransport\AbridgedStream;
 use danog\MadelineProto\Stream\MTProtoTransport\FullStream;
@@ -36,8 +36,6 @@ final class DataCenterTest extends AsyncTestCase
      */
     public function testCanUseProtocol(string $transport, bool $obfuscated, string $protocol, bool $test_mode, bool $ipv6): void
     {
-        $this->markTestSkipped();
-        return;/*
         $settings = new Settings;
         $settings->getAppInfo()
             ->setApiHash(\getenv('API_HASH'))
@@ -54,11 +52,17 @@ final class DataCenterTest extends AsyncTestCase
             ->setTransport($transport)
             ->setRetry(false)
             ->setTimeout(10);
-        $API = new MTProto($settings);
-        $API->getLogger()->logger("Testing protocol $protocol using transport $transport, ".($obfuscated ? 'obfuscated ' : 'not obfuscated ').($test_mode ? 'test DC ' : 'main DC ').($ipv6 ? 'IPv6 ' : 'IPv4 '));
 
-        $ping = \random_bytes(8);
-        $this->assertEquals($ping, $API->methodCallAsyncRead('ping', ['ping_id' => $ping])['ping_id']);*/
+        // Init session
+        $API = new API(\sys_get_temp_dir()."/{$transport}_{$obfuscated}_{$protocol}_{$test_mode}_$ipv6", $settings);
+        unset($API);
+
+        // Fork
+        $API = new API(\sys_get_temp_dir()."/{$transport}_{$obfuscated}_{$protocol}_{$test_mode}_$ipv6", $settings);
+        $API->logger("Testing protocol $protocol using transport $transport, ".($obfuscated ? 'obfuscated ' : 'not obfuscated ').($test_mode ? 'test DC ' : 'main DC ').($ipv6 ? 'IPv6 ' : 'IPv4 '));
+
+        $this->assertIsArray($API->help->getConfig());
+        $API->logout();
     }
 
     public function protocolProvider(): Generator