diff --git a/phpBB/phpbb/db/migration/data/v400/dev.php b/phpBB/phpbb/db/migration/data/v400/dev.php
new file mode 100644
index 0000000000..b47525384a
--- /dev/null
+++ b/phpBB/phpbb/db/migration/data/v400/dev.php
@@ -0,0 +1,36 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\db\migration\data\v400;
+
+use phpbb\db\migration\migration;
+
+class dev extends migration
+{
+	public function effectively_installed()
+	{
+		return version_compare($this->config['version'], '4.0.0-dev', '>=');
+	}
+
+	static public function depends_on()
+	{
+		return ['\phpbb\db\migration\data\v330\v330rc1'];
+	}
+
+	public function update_data()
+	{
+		return [
+			['config.update', ['version', '4.0.0-dev']],
+		];
+	}
+}