diff --git a/projects/RabbitMQ.Client/client/api/IBasicPublishBatch.cs b/projects/RabbitMQ.Client/client/api/IBasicPublishBatch.cs
index c31fb9c552..16584ab78c 100644
--- a/projects/RabbitMQ.Client/client/api/IBasicPublishBatch.cs
+++ b/projects/RabbitMQ.Client/client/api/IBasicPublishBatch.cs
@@ -44,8 +44,7 @@ namespace RabbitMQ.Client
 {
     public interface IBasicPublishBatch
     {
-        [Obsolete("Use Add(string exchange, string routingKey, bool mandatory, IBasicProperties properties, ReadOnlyMemory<byte> body) instead. Will be replaced in version 7.0", false)]
-        void Add(string exchange, string routingKey, bool mandatory, IBasicProperties properties, byte[] body);
+        void Add(string exchange, string routingKey, bool mandatory, IBasicProperties properties, ReadOnlyMemory<byte> body);
         void Publish();
     }
 }
diff --git a/projects/RabbitMQ.Client/client/impl/BasicPublishBatch.cs b/projects/RabbitMQ.Client/client/impl/BasicPublishBatch.cs
index c4dbef19ab..93811fce46 100644
--- a/projects/RabbitMQ.Client/client/impl/BasicPublishBatch.cs
+++ b/projects/RabbitMQ.Client/client/impl/BasicPublishBatch.cs
@@ -62,12 +62,6 @@ internal BasicPublishBatch (ModelBase model, int sizeHint)
             _commands = new List<Command>(sizeHint);
         }
 
-        public void Add(string exchange, string routingKey, bool mandatory, IBasicProperties basicProperties, byte[] body)
-        {
-            ReadOnlyMemory<byte> bodyAsMemory = body;
-            Add(exchange, routingKey, mandatory, basicProperties, bodyAsMemory);
-        }
-
         public void Add(string exchange, string routingKey, bool mandatory, IBasicProperties basicProperties, ReadOnlyMemory<byte> body)
         {
             var method = new BasicPublish
diff --git a/projects/RabbitMQ.Client/client/impl/BasicPublishBatchExtensions.cs b/projects/RabbitMQ.Client/client/impl/BasicPublishBatchExtensions.cs
deleted file mode 100644
index b56f53d246..0000000000
--- a/projects/RabbitMQ.Client/client/impl/BasicPublishBatchExtensions.cs
+++ /dev/null
@@ -1,61 +0,0 @@
-// This source code is dual-licensed under the Apache License, version
-// 2.0, and the Mozilla Public License, version 1.1.
-//
-// The APL v2.0:
-//
-//---------------------------------------------------------------------------
-//   Copyright (c) 2007-2020 VMware, Inc.
-//
-//   Licensed under the Apache License, Version 2.0 (the "License");
-//   you may not use this file except in compliance with the License.
-//   You may obtain a copy of the License at
-//
-//       https://www.apache.org/licenses/LICENSE-2.0
-//
-//   Unless required by applicable law or agreed to in writing, software
-//   distributed under the License is distributed on an "AS IS" BASIS,
-//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-//   See the License for the specific language governing permissions and
-//   limitations under the License.
-//---------------------------------------------------------------------------
-//
-// The MPL v1.1:
-//
-//---------------------------------------------------------------------------
-//  The contents of this file are subject to the Mozilla Public License
-//  Version 1.1 (the "License"); you may not use this file except in
-//  compliance with the License. You may obtain a copy of the License
-//  at https://www.mozilla.org/MPL/
-//
-//  Software distributed under the License is distributed on an "AS IS"
-//  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-//  the License for the specific language governing rights and
-//  limitations under the License.
-//
-//  The Original Code is RabbitMQ.
-//
-//  The Initial Developer of the Original Code is Pivotal Software, Inc.
-//  Copyright (c) 2007-2020 VMware, Inc.  All rights reserved.
-//---------------------------------------------------------------------------
-
-using System;
-using RabbitMQ.Client.Impl;
-
-namespace RabbitMQ.Client
-{
-    public static class BasicPublishBatchExtensions
-    {
-        public static void Add(this IBasicPublishBatch batch, string exchange, string routingKey, bool mandatory, IBasicProperties properties, ReadOnlyMemory<byte> body)
-        {
-            if (batch is BasicPublishBatch batchInternal)
-            {
-                batchInternal.Add(exchange, routingKey, mandatory, properties, body);
-                return;
-            }
-
-#pragma warning disable 618
-            batch.Add(exchange, routingKey, mandatory, properties, body.ToArray());
-#pragma warning restore 618
-        }
-    }
-}
diff --git a/projects/Unit/APIApproval.Approve.verified.txt b/projects/Unit/APIApproval.Approve.verified.txt
index b0b6254a1a..0b67005c92 100644
--- a/projects/Unit/APIApproval.Approve.verified.txt
+++ b/projects/Unit/APIApproval.Approve.verified.txt
@@ -56,10 +56,6 @@ namespace RabbitMQ.Client
         public bool Redelivered { get; }
         public string RoutingKey { get; }
     }
-    public static class BasicPublishBatchExtensions
-    {
-        public static void Add(this RabbitMQ.Client.IBasicPublishBatch batch, string exchange, string routingKey, bool mandatory, RabbitMQ.Client.IBasicProperties properties, System.ReadOnlyMemory<byte> body) { }
-    }
     public class BinaryTableValue
     {
         public BinaryTableValue() { }
@@ -295,9 +291,7 @@ namespace RabbitMQ.Client
     }
     public interface IBasicPublishBatch
     {
-        [System.Obsolete("Use Add(string exchange, string routingKey, bool mandatory, IBasicProperties prop" +
-            "erties, ReadOnlyMemory<byte> body) instead. Will be replaced in version 7.0", false)]
-        void Add(string exchange, string routingKey, bool mandatory, RabbitMQ.Client.IBasicProperties properties, byte[] body);
+        void Add(string exchange, string routingKey, bool mandatory, RabbitMQ.Client.IBasicProperties properties, System.ReadOnlyMemory<byte> body);
         void Publish();
     }
     public interface IConnection : RabbitMQ.Client.INetworkConnection, System.IDisposable