diff --git a/bootstrap.php b/bootstrap.php
index baf94b5..0705a7d 100644
--- a/bootstrap.php
+++ b/bootstrap.php
@@ -25,7 +25,6 @@ const ENV_VERSION='1';
 //Config init
 {
     if (!getenv('SERVER_ADDRESS')) {
-        EnvUpgrade::mysqlToDbPrefix();
 
         $envFile = $options['env'];
         if (empty($envFile)) {
diff --git a/server.php b/server.php
index cc69d49..9c0d297 100644
--- a/server.php
+++ b/server.php
@@ -68,8 +68,6 @@ Example:
 
 require_once __DIR__ . '/bootstrap.php';
 
-SessionsMigration::move();
-SwooleToAmpMigration::check();
 StartUpFixes::fix();
 $mainProcessPid = getmypid();
 
diff --git a/src/Migrations/EnvUpgrade.php b/src/Migrations/EnvUpgrade.php
deleted file mode 100644
index 7c6d4fb..0000000
--- a/src/Migrations/EnvUpgrade.php
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php
-
-namespace TelegramApiServer\Migrations;
-
-class EnvUpgrade
-{
-    public static function mysqlToDbPrefix()
-    {
-        foreach (glob(ROOT_DIR . '/.env*') as $envFile) {
-
-            $text = file_get_contents($envFile);
-            if (str_contains($text, 'MYSQL_')) {
-                $text = preg_replace('/^MYSQL_/m', 'DB_', $text);
-                file_put_contents($envFile, $text);
-            }
-        }
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Migrations/SessionsMigration.php b/src/Migrations/SessionsMigration.php
deleted file mode 100644
index 8ce6284..0000000
--- a/src/Migrations/SessionsMigration.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-namespace TelegramApiServer\Migrations;
-
-use TelegramApiServer\Files;
-
-class SessionsMigration
-{
-    public static function move($rootDir = ROOT_DIR)
-    {
-        foreach (glob("$rootDir/*" . Files::SESSION_EXTENSION) as $oldFile) {
-            preg_match(
-                '~^' . "{$rootDir}(?'session'.*)" . preg_quote(Files::SESSION_EXTENSION, '\\') . '$~',
-                $oldFile,
-                $matches
-            );
-
-            if ($session = $matches['session'] ?? null) {
-                $session = Files::getSessionFile($session);
-                Files::checkOrCreateSessionFolder($session);
-
-                rename($oldFile, "{$rootDir}/{$session}");
-                rename("{$oldFile}.lock", "{$rootDir}/{$session}.lock");
-            }
-        }
-    }
-
-}
\ No newline at end of file
diff --git a/src/Migrations/StartUpFixes.php b/src/Migrations/StartUpFixes.php
index f6b60eb..bbd78e7 100644
--- a/src/Migrations/StartUpFixes.php
+++ b/src/Migrations/StartUpFixes.php
@@ -7,21 +7,5 @@ class StartUpFixes
     public static function fix(): void
     {
         define('MADELINE_WORKER_TYPE', 'madeline-ipc');
-
-        info('Removing ipc sockets from sessions to fix startup' . PHP_EOL);
-        foreach (glob(ROOT_DIR . '/sessions/*/*ipc') as $file) {
-            info("removing: $file");
-            unlink($file);
-        }
-
-
-        foreach (glob(ROOT_DIR . '/sessions/*/safe.php') as $file) {
-            $content = file_get_contents($file);
-            $oldLine = 'O:43:"danog\MadelineProto\Db\NullCache\MysqlArray"';
-            if (str_contains($content, $oldLine)) {
-                $content = str_replace('O:43:"danog\MadelineProto\Db\NullCache\MysqlArray"', 'O:33:"danog\MadelineProto\Db\MysqlArray"', $content);
-                file_put_contents($file, $content);
-            }
-        }
     }
 }
\ No newline at end of file
diff --git a/src/Migrations/SwooleToAmpMigration.php b/src/Migrations/SwooleToAmpMigration.php
deleted file mode 100644
index 1aafb92..0000000
--- a/src/Migrations/SwooleToAmpMigration.php
+++ /dev/null
@@ -1,16 +0,0 @@
-<?php
-
-namespace TelegramApiServer\Migrations;
-
-use UnexpectedValueException;
-
-class SwooleToAmpMigration
-{
-    public static function check()
-    {
-        if (getenv('SWOOLE_SERVER_ADDRESS')) {
-            throw new UnexpectedValueException('Please, update .env file! See .env.example');
-        }
-    }
-
-}
\ No newline at end of file