diff --git a/src/MTProto/MTProtoIncomingMessage.php b/src/MTProto/MTProtoIncomingMessage.php
index 558e99d6f..b4bc9f25a 100644
--- a/src/MTProto/MTProtoIncomingMessage.php
+++ b/src/MTProto/MTProtoIncomingMessage.php
@@ -136,7 +136,6 @@ final class MTProtoIncomingMessage extends MTProtoMessage
      */
     public function ack(): void
     {
-        unset($this->connection->incoming_messages[$this->msgId]);
         $this->state |= self::STATE_ACKED;
         if ($this->contentRelated) {
             // I let the server know that I received its message
@@ -155,14 +154,6 @@ final class MTProtoIncomingMessage extends MTProtoMessage
         return $content;
     }
 
-    /**
-     * Check if this message can be garbage collected.
-     */
-    public function canGarbageCollect(): bool
-    {
-        return (bool) ($this->state & self::STATE_READ);
-    }
-
     /**
      * Get ID of message to which this message replies.
      */
diff --git a/src/MTProto/MTProtoMessage.php b/src/MTProto/MTProtoMessage.php
index bd9c3f12e..31a54799b 100644
--- a/src/MTProto/MTProtoMessage.php
+++ b/src/MTProto/MTProtoMessage.php
@@ -128,9 +128,4 @@ abstract class MTProtoMessage
 
         return $this;
     }
-
-    /**
-     * Check whether this message can be garbage collected.
-     */
-    abstract public function canGarbageCollect(): bool;
 }
diff --git a/src/MTProtoSession/Reliable.php b/src/MTProtoSession/Reliable.php
index 3536d66a8..0f2c451ff 100644
--- a/src/MTProtoSession/Reliable.php
+++ b/src/MTProtoSession/Reliable.php
@@ -36,11 +36,11 @@ trait Reliable
      */
     public function onNewMsgDetailedInfo(array $content): void
     {
-        if (isset($this->incoming_messages[$content['answer_msg_id']])) {
+        /*if (isset($this->incoming_messages[$content['answer_msg_id']])) {
             $this->incoming_messages[$content['answer_msg_id']]->ack();
         } else {
             EventLoop::queue($this->objectCall(...), 'msg_resend_req', ['msg_ids' => [$content['answer_msg_id']]]);
-        }
+        }*/
     }
     /**
      * Called when receiving a msg_detailed_info.
@@ -58,7 +58,7 @@ trait Reliable
     {
         $ok = true;
         foreach ($content['msg_ids'] as $msg_id) {
-            if (!isset($this->outgoing_messages[$msg_id]) || isset($this->incoming_messages[$msg_id])) {
+            if (!isset($this->outgoing_messages[$msg_id])) {
                 $ok = false;
             }
         }
@@ -104,7 +104,7 @@ trait Reliable
      */
     public function sendMsgsStateInfo(array $msg_ids, int $req_msg_id): void
     {
-        $this->API->logger('Sending state info for '.\count($msg_ids).' message IDs');
+        /*$this->API->logger('Sending state info for '.\count($msg_ids).' message IDs');
         $info = '';
         foreach ($msg_ids as $msg_id) {
             $cur_info = 0;
@@ -126,6 +126,6 @@ trait Reliable
             }
             $info .= \chr($cur_info);
         }
-        EventLoop::queue($this->objectCall(...), 'msgs_state_info', ['req_msg_id' => $req_msg_id, 'info' => $info]);
+        EventLoop::queue($this->objectCall(...), 'msgs_state_info', ['req_msg_id' => $req_msg_id, 'info' => $info]);*/
     }
 }
diff --git a/src/MTProtoSession/ResponseHandler.php b/src/MTProtoSession/ResponseHandler.php
index dba3762fa..6fb0a19e4 100644
--- a/src/MTProtoSession/ResponseHandler.php
+++ b/src/MTProtoSession/ResponseHandler.php
@@ -154,7 +154,7 @@ trait ResponseHandler
             $newMessage->setSeqNo(null);
             $tmp->enqueue($newMessage);
             $this->incomingCtr?->inc();
-            $this->incoming_messages[$msg['msg_id']] = $newMessage;
+            //$this->incoming_messages[$msg['msg_id']] = $newMessage;
         }
         $this->checkInSeqNo($message);
         $this->handleMessages($tmp);
@@ -163,15 +163,15 @@ trait ResponseHandler
     {
         $content = $message->read();
         $referencedMsgId = $content['msg_id'];
-        if (isset($this->incoming_messages[$referencedMsgId])) {
+        /*if (isset($this->incoming_messages[$referencedMsgId])) {
             $this->incoming_messages[$referencedMsgId]->ack();
-        } else {
+        } else {*/
             $this->msgIdHandler->checkIncomingMessageId($referencedMsgId, true);
             $message = new MTProtoIncomingMessage($this, $content['orig_message'], $referencedMsgId, $message->unencrypted);
             $this->incomingCtr?->inc();
-            $this->incoming_messages[$referencedMsgId] = $message;
+            //$this->incoming_messages[$referencedMsgId] = $message;
             $this->handleMessages([$message]);
-        }
+        //}
     }
 
     /**
diff --git a/src/MTProtoSession/Session.php b/src/MTProtoSession/Session.php
index 473c74563..24753ff40 100644
--- a/src/MTProtoSession/Session.php
+++ b/src/MTProtoSession/Session.php
@@ -57,7 +57,7 @@ trait Session
      *
      * @var array<MTProtoIncomingMessage>
      */
-    public array $incoming_messages = [];
+    //public array $incoming_messages = [];
     /**
      * Outgoing message array.
      *
@@ -155,24 +155,6 @@ trait Session
      */
     public function cleanupSession(): void
     {
-        $count = 0;
-        $incoming = [];
-        foreach ($this->incoming_messages as $key => $message) {
-            if ($message->canGarbageCollect()) {
-                $this->API->logger("Collecting incoming $message in DC {$this->datacenter}", Logger::VERBOSE);
-
-                $count++;
-            } else {
-                $this->API->logger("Can't garbage collect $message in DC {$this->datacenter}, not handled yet!", Logger::VERBOSE);
-                $incoming[$key] = $message;
-            }
-        }
-        $this->incoming_messages = $incoming;
-        $total = \count($this->incoming_messages);
-        if ($count+$total) {
-            $this->API->logger("Garbage collected $count incoming messages in DC {$this->datacenter}, $total left", Logger::VERBOSE);
-        }
-
         $count = 0;
         $outgoing = [];
         foreach ($this->outgoing_messages as $key => $message) {