diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/Protocol1_10To1_9_3_4.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/Protocol1_10To1_9_3_4.java
index d11e90337..1525d5a32 100644
--- a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/Protocol1_10To1_9_3_4.java
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/Protocol1_10To1_9_3_4.java
@@ -10,6 +10,7 @@ import us.myles.ViaVersion.api.remapper.ValueTransformer;
 import us.myles.ViaVersion.api.type.Type;
 import us.myles.ViaVersion.api.type.types.version.Types1_9;
 import us.myles.ViaVersion.packets.State;
+import us.myles.ViaVersion.protocols.protocol1_10to1_9_3.packets.InventoryPackets;
 import us.myles.ViaVersion.protocols.protocol1_10to1_9_3.storage.ResourcePackTracker;
 import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
 import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
@@ -43,6 +44,9 @@ public class Protocol1_10To1_9_3_4 extends Protocol<ClientboundPackets1_9_3, Cli
 
     @Override
     protected void registerPackets() {
+
+        InventoryPackets.register(this);
+
         // Named sound effect
         registerOutgoing(State.PLAY, 0x19, 0x19, new PacketRemapper() {
             @Override
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/packets/InventoryPackets.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/packets/InventoryPackets.java
new file mode 100644
index 000000000..ecf89c327
--- /dev/null
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_10to1_9_3/packets/InventoryPackets.java
@@ -0,0 +1,25 @@
+package us.myles.ViaVersion.protocols.protocol1_10to1_9_3.packets;
+
+import us.myles.ViaVersion.api.minecraft.item.Item;
+import us.myles.ViaVersion.api.rewriters.ItemRewriter;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.protocols.protocol1_10to1_9_3.Protocol1_10To1_9_3_4;
+import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+
+public class InventoryPackets {
+
+    public static void register(Protocol1_10To1_9_3_4 protocol) {
+        ItemRewriter itemRewriter = new ItemRewriter(protocol, item -> {}, InventoryPackets::toServerItem);
+        itemRewriter.registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION, Type.ITEM);
+    }
+
+    public static void toServerItem(Item item) {
+        if (item == null) return;
+        boolean newItem = item.getIdentifier() >= 213 && item.getIdentifier() <= 217;
+        if (newItem) { // Replace server-side unknown items
+            item.setIdentifier((short) 1);
+            item.setData((short) 0);
+        }
+    }
+
+}
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/Protocol1_11_1To1_11.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/Protocol1_11_1To1_11.java
index 9d16e420f..5b89e0983 100644
--- a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/Protocol1_11_1To1_11.java
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/Protocol1_11_1To1_11.java
@@ -1,8 +1,19 @@
 package us.myles.ViaVersion.protocols.protocol1_11_1to1_11;
 
 import us.myles.ViaVersion.api.protocol.Protocol;
+import us.myles.ViaVersion.protocols.protocol1_11_1to1_11.packets.InventoryPackets;
 import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
 import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
 
 public class Protocol1_11_1To1_11 extends Protocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
+
+    public Protocol1_11_1To1_11() {
+        super(ClientboundPackets1_9_3.class, ClientboundPackets1_9_3.class, ServerboundPackets1_9_3.class, ServerboundPackets1_9_3.class);
+    }
+
+    @Override
+    protected void registerPackets() {
+        InventoryPackets.register(this);
+    }
+
 }
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/packets/InventoryPackets.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/packets/InventoryPackets.java
new file mode 100644
index 000000000..6446f9684
--- /dev/null
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11_1to1_11/packets/InventoryPackets.java
@@ -0,0 +1,25 @@
+package us.myles.ViaVersion.protocols.protocol1_11_1to1_11.packets;
+
+import us.myles.ViaVersion.api.minecraft.item.Item;
+import us.myles.ViaVersion.api.rewriters.ItemRewriter;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.protocols.protocol1_11_1to1_11.Protocol1_11_1To1_11;
+import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+
+public class InventoryPackets {
+
+    public static void register(Protocol1_11_1To1_11 protocol) {
+        ItemRewriter itemRewriter = new ItemRewriter(protocol, item -> {}, InventoryPackets::toServerItem);
+        itemRewriter.registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION, Type.ITEM);
+    }
+
+    public static void toServerItem(Item item) {
+        if (item == null) return;
+        boolean newItem = item.getIdentifier() == 452;
+        if (newItem) { // Replace server-side unknown items
+            item.setIdentifier((short) 1);
+            item.setData((short) 0);
+        }
+    }
+
+}
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11to1_10/packets/InventoryPackets.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11to1_10/packets/InventoryPackets.java
index fa87fc5db..0f66861b5 100644
--- a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11to1_10/packets/InventoryPackets.java
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_11to1_10/packets/InventoryPackets.java
@@ -1,6 +1,8 @@
 package us.myles.ViaVersion.protocols.protocol1_11to1_10.packets;
 
 import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.minecraft.item.Item;
 import us.myles.ViaVersion.api.remapper.PacketHandler;
 import us.myles.ViaVersion.api.remapper.PacketRemapper;
 import us.myles.ViaVersion.api.rewriters.ItemRewriter;
@@ -13,7 +15,7 @@ import us.myles.ViaVersion.protocols.protocol1_11to1_10.Protocol1_11To1_10;
 public class InventoryPackets {
 
     public static void register(Protocol1_11To1_10 protocol) {
-        ItemRewriter itemRewriter = new ItemRewriter(protocol, EntityIdRewriter::toClientItem, EntityIdRewriter::toServerItem);
+        ItemRewriter itemRewriter = new ItemRewriter(protocol, EntityIdRewriter::toClientItem, InventoryPackets::toServerItem);
 
         itemRewriter.registerSetSlot(ClientboundPackets1_9_3.SET_SLOT, Type.ITEM);
         itemRewriter.registerWindowItems(ClientboundPackets1_9_3.WINDOW_ITEMS, Type.ITEM_ARRAY);
@@ -53,4 +55,16 @@ public class InventoryPackets {
         itemRewriter.registerClickWindow(ServerboundPackets1_9_3.CLICK_WINDOW, Type.ITEM);
         itemRewriter.registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION, Type.ITEM);
     }
+
+    public static void toServerItem(Item item) {
+        EntityIdRewriter.toServerItem(item);
+        if (item == null) return;
+        boolean newItem = item.getIdentifier() >= 218 && item.getIdentifier() <= 234;
+        newItem |= item.getIdentifier() == 449 || item.getIdentifier() == 450;
+        if (newItem) { // Replace server-side unknown items
+            item.setIdentifier((short) 1);
+            item.setData((short) 0);
+        }
+    }
+
 }
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_12to1_11_1/packets/InventoryPackets.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_12to1_11_1/packets/InventoryPackets.java
index a18c36980..4306e48cc 100644
--- a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_12to1_11_1/packets/InventoryPackets.java
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_12to1_11_1/packets/InventoryPackets.java
@@ -7,6 +7,7 @@ import us.myles.ViaVersion.api.remapper.PacketHandler;
 import us.myles.ViaVersion.api.remapper.PacketRemapper;
 import us.myles.ViaVersion.api.rewriters.ItemRewriter;
 import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.protocols.protocol1_11to1_10.EntityIdRewriter;
 import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
 import us.myles.ViaVersion.protocols.protocol1_12to1_11_1.BedRewriter;
 import us.myles.ViaVersion.protocols.protocol1_12to1_11_1.Protocol1_12To1_11_1;
@@ -16,7 +17,7 @@ import us.myles.ViaVersion.protocols.protocol1_12to1_11_1.providers.InventoryQui
 public class InventoryPackets {
 
     public static void register(Protocol1_12To1_11_1 protocol) {
-        ItemRewriter itemRewriter = new ItemRewriter(protocol, BedRewriter::toClientItem, BedRewriter::toServerItem);
+        ItemRewriter itemRewriter = new ItemRewriter(protocol, BedRewriter::toClientItem, InventoryPackets::toServerItem);
 
         itemRewriter.registerSetSlot(ClientboundPackets1_9_3.SET_SLOT, Type.ITEM);
         itemRewriter.registerWindowItems(ClientboundPackets1_9_3.WINDOW_ITEMS, Type.ITEM_ARRAY);
@@ -98,4 +99,15 @@ public class InventoryPackets {
         // Creative Inventory Action
         itemRewriter.registerCreativeInvAction(ServerboundPackets1_12.CREATIVE_INVENTORY_ACTION, Type.ITEM);
     }
+
+    public static void toServerItem(Item item) {
+        BedRewriter.toServerItem(item);
+        if (item == null) return;
+        boolean newItem = item.getIdentifier() >= 235 && item.getIdentifier() <= 252;
+        newItem |= item.getIdentifier() == 453;
+        if (newItem) { // Replace server-side unknown items
+            item.setIdentifier((short) 1);
+            item.setData((short) 0);
+        }
+    }
 }
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/ItemRewriter.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/ItemRewriter.java
index b219002c9..e14ea7699 100644
--- a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/ItemRewriter.java
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/ItemRewriter.java
@@ -186,6 +186,14 @@ public class ItemRewriter {
                 item.setTag(tag);
                 item.setData((short) data);
             }
+
+            boolean newItem = item.getIdentifier() >= 198 && item.getIdentifier() <= 212;
+            newItem |= item.getIdentifier() == 397 && item.getData() == 5;
+            newItem |= item.getIdentifier() >= 432 && item.getIdentifier() <= 448;
+            if (newItem) { // Replace server-side unknown items
+                item.setIdentifier((short) 1);
+                item.setData((short) 0);
+            }
         }
     }