diff --git a/Assets/Mirror/Core/SyncList.cs b/Assets/Mirror/Core/SyncList.cs
index 20775ad91..6f4952e4e 100644
--- a/Assets/Mirror/Core/SyncList.cs
+++ b/Assets/Mirror/Core/SyncList.cs
@@ -27,6 +27,14 @@ public enum Operation : byte
         /// <summary>This is called after the item is removed with index and OLD Value</summary>
         public Action<int, T> OnRemove;
 
+        /// <summary>
+        /// This is called for all changes to the List.
+        /// <para>For OP_ADD and OP_INSERT, T is the NEW value of the entry.</para>
+        /// <para>For OP_SET and OP_REMOVE, T is the OLD value of the entry.</para>
+        /// <para>For OP_CLEAR, T is default.</para>
+        /// </summary>
+        public Action<Operation, int, T> OnChange;
+
         /// <summary>This is called before the list is cleared so the list can be iterated</summary>
         public Action OnClear;
 
@@ -106,18 +114,23 @@ void AddOperation(Operation op, int itemIndex, T oldItem, T newItem, bool checkA
             {
                 case Operation.OP_ADD:
                     OnAdd?.Invoke(itemIndex);
+                    OnChange?.Invoke(op, itemIndex, newItem);
                     break;
                 case Operation.OP_INSERT:
                     OnInsert?.Invoke(itemIndex);
+                    OnChange?.Invoke(op, itemIndex, newItem);
                     break;
                 case Operation.OP_SET:
                     OnSet?.Invoke(itemIndex, oldItem);
+                    OnChange?.Invoke(op, itemIndex, oldItem);
                     break;
                 case Operation.OP_REMOVEAT:
                     OnRemove?.Invoke(itemIndex, oldItem);
+                    OnChange?.Invoke(op, itemIndex, oldItem);
                     break;
                 case Operation.OP_CLEAR:
                     OnClear?.Invoke();
+                    OnChange?.Invoke(op, itemIndex, default);
                     break;
             }
 
diff --git a/Assets/Mirror/Tests/Editor/SyncCollections/SyncListTest.cs b/Assets/Mirror/Tests/Editor/SyncCollections/SyncListTest.cs
index 752237979..c87da8cc4 100644
--- a/Assets/Mirror/Tests/Editor/SyncCollections/SyncListTest.cs
+++ b/Assets/Mirror/Tests/Editor/SyncCollections/SyncListTest.cs
@@ -463,10 +463,20 @@ public void CallbackTest()
                 Assert.That(clientSyncList[index], Is.EqualTo("yay"));
             };
 
+            bool changeActionCalled = false;
+            clientSyncList.OnChange = (op, index, oldItem) =>
+            {
+                changeActionCalled = true;
+                Assert.That(op, Is.EqualTo(SyncList<string>.Operation.OP_ADD));
+                Assert.That(index, Is.EqualTo(3));
+                Assert.That(oldItem, Is.EqualTo("yay"));
+            };
+
             serverSyncList.Add("yay");
             SerializeDeltaTo(serverSyncList, clientSyncList);
             Assert.That(called, Is.True);
             Assert.That(actionCalled, Is.True);
+            Assert.That(changeActionCalled, Is.True);
         }
 
         [Test]
@@ -492,10 +502,20 @@ public void CallbackRemoveTest()
                 Assert.That(oldItem, Is.EqualTo("World"));
             };
 
+            bool changeActionCalled = false;
+            clientSyncList.OnChange = (op, index, oldItem) =>
+            {
+                changeActionCalled = true;
+                Assert.That(op, Is.EqualTo(SyncList<string>.Operation.OP_REMOVEAT));
+                Assert.That(index, Is.EqualTo(1));
+                Assert.That(oldItem, Is.EqualTo("World"));
+            };
+
             serverSyncList.Remove("World");
             SerializeDeltaTo(serverSyncList, clientSyncList);
             Assert.That(called, Is.True);
             Assert.That(actionCalled, Is.True);
+            Assert.That(changeActionCalled, Is.True);
         }
 
         [Test]
@@ -522,10 +542,20 @@ public void CallbackRemoveAtTest()
                 Assert.That(oldItem, Is.EqualTo("World"));
             };
 
+            bool changeActionCalled = false;
+            clientSyncList.OnChange = (op, index, oldItem) =>
+            {
+                changeActionCalled = true;
+                Assert.That(op, Is.EqualTo(SyncList<string>.Operation.OP_REMOVEAT));
+                Assert.That(index, Is.EqualTo(1));
+                Assert.That(oldItem, Is.EqualTo("World"));
+            };
+
             serverSyncList.RemoveAt(1);
             SerializeDeltaTo(serverSyncList, clientSyncList);
             Assert.That(called, Is.True);
             Assert.That(actionCalled, Is.True);
+            Assert.That(changeActionCalled, Is.True);
         }
 
         [Test]