diff --git a/bt/announce.php b/bt/announce.php
index 2a2a42fb0..c40e72bf4 100644
--- a/bt/announce.php
+++ b/bt/announce.php
@@ -65,6 +65,15 @@ if (strlen($peer_id) !== 20) {
     msg_die('Invalid peer_id: ' . $peer_id);
 }
 
+// Check for client ban
+if ($bb_cfg['client_ban']['enabled']) {
+    foreach (array_keys($bb_cfg['client_ban']['clients']) as $client) {
+        if (str_starts_with($peer_id, $client)) {
+            msg_die($bb_cfg['client_ban']['clients'][$client]);
+        }
+    }
+}
+
 // Verify info_hash
 if (!isset($info_hash)) {
     msg_die('info_hash was not provided');
@@ -102,8 +111,7 @@ $ip = $_SERVER['REMOTE_ADDR'];
 if (!$bb_cfg['ignore_reported_ip'] && isset($_GET['ip']) && $ip !== $_GET['ip']) {
     if (!$bb_cfg['verify_reported_ip']) {
         $ip = $_GET['ip'];
-    }
-    elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && preg_match_all('#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#', $_SERVER['HTTP_X_FORWARDED_FOR'], $matches)) {
+    } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && preg_match_all('#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#', $_SERVER['HTTP_X_FORWARDED_FOR'], $matches)) {
         foreach ($matches[0] as $x_ip) {
             if ($x_ip === $_GET['ip']) {
                 if (!$bb_cfg['allow_internal_ip'] && preg_match("#(127\.([0-9]{1,3}\.){2}[0-9]{1,3}|10\.([0-9]{1,3}\.){2}[0-9]{1,3}|172\.[123][0-9]\.[0-9]{1,3}\.[0-9]{1,3}|192\.168\.[0-9]{1,3}\.[0-9]{1,3})#", $x_ip)) {
@@ -243,8 +251,7 @@ if ($lp_info) {
             if ($row = DB()->fetch_row($sql)) {
                 if ($seeder && $bb_cfg['tracker']['limit_seed_count'] && $row['active_torrents'] >= $bb_cfg['tracker']['limit_seed_count']) {
                     msg_die('Only ' . $bb_cfg['tracker']['limit_seed_count'] . ' torrent(s) allowed for seeding');
-                }
-                elseif (!$seeder && $bb_cfg['tracker']['limit_leech_count'] && $row['active_torrents'] >= $bb_cfg['tracker']['limit_leech_count']) {
+                } elseif (!$seeder && $bb_cfg['tracker']['limit_leech_count'] && $row['active_torrents'] >= $bb_cfg['tracker']['limit_leech_count']) {
                     msg_die('Only ' . $bb_cfg['tracker']['limit_leech_count'] . ' torrent(s) allowed for leeching' . $rating_msg);
                 }
             }
@@ -267,8 +274,7 @@ if ($lp_info) {
             if ($row = DB()->fetch_row($sql)) {
                 if ($seeder && $bb_cfg['tracker']['limit_seed_ips'] && $row['ips'] >= $bb_cfg['tracker']['limit_seed_ips']) {
                     msg_die('You can seed only from ' . $bb_cfg['tracker']['limit_seed_ips'] . " IP's");
-                }
-                elseif (!$seeder && $bb_cfg['tracker']['limit_leech_ips'] && $row['ips'] >= $bb_cfg['tracker']['limit_leech_ips']) {
+                } elseif (!$seeder && $bb_cfg['tracker']['limit_leech_ips'] && $row['ips'] >= $bb_cfg['tracker']['limit_leech_ips']) {
                     msg_die('You can leech only from ' . $bb_cfg['tracker']['limit_leech_ips'] . " IP's");
                 }
             }
@@ -352,7 +358,7 @@ if ((!$lp_info || !$peer_info_updated) && !$stopped && empty($hybrid_unrecord))
 
 // Exit if stopped
 if ($stopped) {
-    silent_exit('Cache will be reset within 30 seconds');
+    dummy_exit();
 }
 
 // Store peer info in cache
@@ -462,7 +468,6 @@ if (!$output) {
 }
 
 $output['external ip'] = inet_pton($ip);
-$output['warning message'] = 'Statistics were updated';
 
 // Return data to client
 echo \Arokettu\Bencode\Bencode::encode($output);
diff --git a/bt/includes/init_tr.php b/bt/includes/init_tr.php
index 08331237a..02a964b88 100644
--- a/bt/includes/init_tr.php
+++ b/bt/includes/init_tr.php
@@ -69,7 +69,6 @@ function dummy_exit($interval = 1800, $cache_dict = [])
         $output['complete'] = $cache_dict['complete'];
         $output['incomplete'] = $cache_dict['incomplete'];
         $output['downloaded'] = $cache_dict['downloaded'];
-        $output['warning message'] = 'Next statistics update in: ' . (floor($interval / 60) % 60) . ' minutes';
     }
 
     if (isset($cache_dict['peers'])) {
diff --git a/library/config.php b/library/config.php
index 2f1eca8ad..4ef5af87e 100644
--- a/library/config.php
+++ b/library/config.php
@@ -101,6 +101,16 @@ $bb_cfg['passkey_key'] = 'uk'; // Passkey key name in GET request
 $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'] = [
+    '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' => [
+        '-UT' => "uTorrent — NOT ad-free and open-source",
+        '-MG' => 'Mostly leeching client'
+    ]
+];
 
 // Ocelot
 $bb_cfg['ocelot'] = [
@@ -670,7 +680,8 @@ $bb_cfg['tracker'] = [
     'search_by_tor_status' => true,
     'freeleech' => false, // freeleech mode (If enabled, then disable "gold_silver_enabled")
     'gold_silver_enabled' => true, // golden / silver days mode (If enabled, then disable "freeleech")
-    'disabled_v2_torrents' => false // allow registration of v2-only torrents
+    'disabled_v1_torrents' => false, // disallow registration of v1-only torrents, for future implementations where client will use v2 only and there won't be need for v1, relieving tracker
+    'disabled_v2_torrents' => false // disallow registration of v2-only torrents
 ];
 
 // Ratio settings
diff --git a/library/language/source/main.php b/library/language/source/main.php
index 30c122a55..c5c5694c8 100644
--- a/library/language/source/main.php
+++ b/library/language/source/main.php
@@ -1072,6 +1072,7 @@ $lang['BT_ADDED'] = 'Added';
 $lang['BT_REG_ON_TRACKER'] = 'Register on tracker';
 $lang['BT_REG_FAIL'] = 'Could not register torrent on tracker';
 $lang['BT_REG_FAIL_SAME_HASH'] = 'Another torrent with same info_hash already <a href="%s"><b>registered</b></a>';
+$lang['BT_V1_ONLY_DISALLOWED'] = 'v1-only torrents have been disabled by the administrator at the moment, allowed: v2 and hybrids';
 $lang['BT_V2_ONLY_DISALLOWED'] = 'v2-only torrents have been disabled by the administrator at the moment, allowed: v1 and hybrids';
 $lang['BT_V2_FILE_LIST_ONLY'] = 'Currently, only torrents with BitTorrent version 2 support are enabled for separate file listing';
 $lang['BT_UNREG_FROM_TRACKER'] = 'Remove from tracker';
diff --git a/src/Legacy/Torrent.php b/src/Legacy/Torrent.php
index 3ff44d61f..6b3bb5499 100644
--- a/src/Legacy/Torrent.php
+++ b/src/Legacy/Torrent.php
@@ -349,15 +349,21 @@ class Torrent
         }
 
         // Check if torrent contains info_hash v2 or v1
-        if (($info['meta version'] ?? null) == 2) {
-            if (is_array($info['file tree'] ?? null)) {
+        if (isset($info['meta version'], $info['file tree'])) {
+            if ($info['meta version'] === 2 && is_array($info['file tree'])) {
                 $bt_v2 = true;
             }
         }
+
         if (isset($info['pieces'])) {
             $bt_v1 = true;
         }
-        if ($bb_cfg['tracker']['disabled_v2_torrents'] && isset($bt_v2) && !isset($bt_v1)) {
+
+        if ($bb_cfg['tracker']['disabled_v1_torrents'] && isset($bt_v1) && !isset($bt_v2)) {
+            self::torrent_error_exit($lang['BT_V1_ONLY_DISALLOWED']);
+        }
+
+        if ($bb_cfg['tracker']['disabled_v2_torrents'] && !isset($bt_v1) && isset($bt_v2)) {
             self::torrent_error_exit($lang['BT_V2_ONLY_DISALLOWED']);
         }