diff --git a/CHANGELOG.md b/CHANGELOG.md
index c57360af..12b1f20f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,23 @@
 # 📖 Change Log
 
+## [v2.1.5-2024.01 [Final v2]](https://github.com/torrentpier/torrentpier-lts/tree/v2.1.5-2024.01)
+[Full Changelog](https://github.com/torrentpier/torrentpier-lts/compare/v2.1.5-2023.10-HotFix...v2.1.5-2024.01)
+
+- Release v2.1.5-2024.01 🎉
+- Some improvements in default template
+- Fixed void function result used
+- Feature to ban specific torrent clients
+- Get SERVER_NAME variable for cron tasks
+- Improved handling errors while uploading
+- Hide vote button in poll if user already voted
+- Fixed broken captcha check on login.php
+- Fixed broken sorting in group.php
+- Fixed extensions issue
+- Some enhancements for dl.php
+- Some other changes / improvements
+- Some reported bugfixes
+- Updated translations
+
 ## [v2.1.5-2023.10-HotFix [Final]](https://github.com/torrentpier/torrentpier-lts/tree/v2.1.5-2023.10-HotFix) (2023-11-20)
 [Full Changelog](https://github.com/torrentpier/torrentpier-lts/compare/v2.1.5-2023.10...v2.1.5-2023.10-HotFix)
 
diff --git a/bt/announce.php b/bt/announce.php
index 6e6efffa..f9385012 100644
--- a/bt/announce.php
+++ b/bt/announce.php
@@ -103,6 +103,18 @@ if (!verify_id($passkey, BT_AUTH_KEY_LENGTH))
 	msg_die('Invalid passkey: ' . $passkey);
 }
 
+// Check for client ban
+if ($bb_cfg['client_ban']['enabled'])
+{
+	foreach (array_keys($bb_cfg['client_ban']['clients']) as $client)
+	{
+		if (substr($peer_id, 0, strlen($client)) === $client)
+		{
+			msg_die($bb_cfg['client_ban']['clients'][$client]);
+		}
+	}
+}
+
 // IP
 $ip = $_SERVER['REMOTE_ADDR'];
 
diff --git a/library/config.php b/library/config.php
index 14458939..395db710 100644
--- a/library/config.php
+++ b/library/config.php
@@ -94,6 +94,16 @@ $bb_cfg['passkey_key']        = 'uk';              // Passkey key name in GET re
 $bb_cfg['ignore_reported_ip'] = false;             // Ignore IP reported by client
 $bb_cfg['verify_reported_ip'] = true;              // Verify IP reported by client against $_SERVER['HTTP_X_FORWARDED_FOR']
 $bb_cfg['allow_internal_ip']  = false;             // Allow internal IP (10.xx.. etc.)
+$bb_cfg['client_ban'] = array(
+	'enabled' => false,
+	// Clients to be blocked, for example, peer id '-UT' will block all uTorrent clients, '-UT2' will block builds starting with 2 (default: false)
+	// The second argument is being shown in the torrent client as a failure message
+	// Handy client list: https://github.com/transmission/transmission/blob/f85c3b6f8db95d5363f6ec38eee603f146c6adb6/libtransmission/clients.cc#L504
+	'clients' => array(
+		'-UT' => "uTorrent — NOT ad-free and open-source",
+		'-MG' => 'Mostly leeching client'
+	)
+);
 
 // Ocelot
 $bb_cfg['ocelot']['port'] = 34000;