diff --git a/worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/BukkitItemRegistry.java b/worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/BukkitItemRegistry.java
index c528a5b790..462b5a4c83 100644
--- a/worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/BukkitItemRegistry.java
+++ b/worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/BukkitItemRegistry.java
@@ -24,6 +24,7 @@
 import com.sk89q.worldedit.world.item.ItemType;
 import com.sk89q.worldedit.world.registry.BundledItemRegistry;
 
+@SuppressWarnings("deprecation")
 class BukkitItemRegistry extends BundledItemRegistry {
     @Override
     public Component getRichName(ItemType itemType) {
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/WorldEdit.java b/worldedit-core/src/main/java/com/sk89q/worldedit/WorldEdit.java
index 246c736c84..391ea2ab98 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/WorldEdit.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/WorldEdit.java
@@ -71,7 +71,6 @@
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
 import com.sk89q.worldedit.world.registry.BundledBlockData;
-import com.sk89q.worldedit.world.registry.BundledItemData;
 import com.sk89q.worldedit.world.registry.LegacyMapper;
 import org.apache.logging.log4j.Logger;
 
@@ -405,8 +404,7 @@ private boolean checkFilename(String filename) {
      */
     public void loadMappings() {
         BundledBlockData.getInstance(); // Load block registry
-        BundledItemData.getInstance(); // Load item registry
-        LegacyMapper.getInstance(); // Load item registry
+        LegacyMapper.getInstance(); // Load legacy mappings
     }
 
     /**
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemType.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemType.java
index 29e44fd916..3590ffae7f 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemType.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemType.java
@@ -51,7 +51,7 @@ public class ItemType implements Keyed {
         WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS)
             .getRegistries().getItemRegistry().getRichName(this)
     );
-    @SuppressWarnings("this-escape")
+    @SuppressWarnings("removal")
     private final LazyReference<ItemMaterial> itemMaterial = LazyReference.from(() ->
         WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS)
             .getRegistries().getItemRegistry().getMaterial(this)
@@ -109,7 +109,10 @@ public BlockType getBlockType() {
      * Get the material for this ItemType.
      *
      * @return The material
+     * @deprecated Deprecated without alternative
      */
+    @Deprecated
+    @SuppressWarnings("removal")
     public ItemMaterial getMaterial() {
         return itemMaterial.getValue();
     }
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemData.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemData.java
index 1397d7c68a..21f7eea6e3 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemData.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemData.java
@@ -46,7 +46,10 @@
  * <p>The data is read from a JSON file that is bundled with WorldEdit. If
  * reading fails (which occurs when this class is first instantiated), then
  * the methods will return {@code null}s for all items.</p>
+ *
+ * @deprecated Deprecated without replacement.
  */
+@Deprecated
 public final class BundledItemData {
 
     private static final Logger LOGGER = LogManagerCompat.getLogger();
@@ -91,6 +94,7 @@ private void loadFromResource() throws IOException {
      * @return the entry, or null
      */
     @Nullable
+    @Deprecated
     public ItemEntry findById(String id) {
         // If it has no namespace, assume minecraft.
         if (!id.contains(":")) {
@@ -104,8 +108,11 @@ public ItemEntry findById(String id) {
      *
      * @param id the string ID
      * @return the material's properties, or null
+     * @deprecated Deprecated without alternative
      */
     @Nullable
+    @Deprecated
+    @SuppressWarnings("removal")
     public ItemMaterial getMaterialById(String id) {
         ItemEntry entry = findById(id);
         if (entry != null) {
@@ -121,6 +128,7 @@ public ItemMaterial getMaterialById(String id) {
      *
      * @return the instance
      */
+    @Deprecated
     public static BundledItemData getInstance() {
         if (INSTANCE == null) {
             INSTANCE = new BundledItemData();
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemRegistry.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemRegistry.java
index dcf95ff1d6..a2889c8eee 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemRegistry.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledItemRegistry.java
@@ -30,7 +30,10 @@
 /**
  * A item registry that uses {@link BundledItemRegistry} to serve information
  * about items.
+ *
+ * @deprecated Use the platform Item Registries
  */
+@Deprecated
 public class BundledItemRegistry implements ItemRegistry {
 
     private BundledItemData.ItemEntry getEntryById(ItemType itemType) {
@@ -73,6 +76,8 @@ public String getName(ItemType itemType) {
 
     @Nullable
     @Override
+    @Deprecated
+    @SuppressWarnings("removal")
     public ItemMaterial getMaterial(ItemType itemType) {
         return new PassthroughItemMaterial(BundledItemData.getInstance().getMaterialById(itemType.id()));
     }
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledRegistries.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledRegistries.java
index 389ca8f998..787ed46ba0 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledRegistries.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledRegistries.java
@@ -65,6 +65,7 @@ static URL loadRegistry(String name) throws IOException {
     }
 
     private final BundledBlockRegistry blockRegistry = new BundledBlockRegistry();
+    @SuppressWarnings("deprecation")
     private final BundledItemRegistry itemRegistry = new BundledItemRegistry();
     private final NullEntityRegistry entityRegistry = new NullEntityRegistry();
     private final NullBiomeRegistry biomeRegistry = new NullBiomeRegistry();
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemMaterial.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemMaterial.java
index 8ff10496a1..9b94461cc7 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemMaterial.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemMaterial.java
@@ -22,6 +22,7 @@
 import com.sk89q.worldedit.internal.util.DeprecationUtil;
 import com.sk89q.worldedit.internal.util.NonAbstractForCompatibility;
 
+@Deprecated(forRemoval = true)
 public interface ItemMaterial {
     /**
      * Gets the the maximum quantity of this item that can be in a single stack.
@@ -38,7 +39,9 @@ default int getMaxStackSize() {
      * Gets the the maximum quantity of this item that can be in a single stack.
      *
      * @return the maximum quantity
+     * @deprecated Deprecated with no alternative
      */
+    @Deprecated(forRemoval = true)
     @NonAbstractForCompatibility(delegateName = "getMaxStackSize", delegateParams = {})
     default int maxStackSize() {
         DeprecationUtil.checkDelegatingOverride(getClass());
@@ -60,7 +63,9 @@ default int getMaxDamage() {
      * Gets the the maximum damage this item can take before being broken.
      *
      * @return the maximum damage, or 0 if not applicable
+     * @deprecated Deprecated with no alternative
      */
+    @Deprecated(forRemoval = true)
     @NonAbstractForCompatibility(delegateName = "getMaxDamage", delegateParams = {})
     default int maxDamage() {
         DeprecationUtil.checkDelegatingOverride(getClass());
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemRegistry.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemRegistry.java
index 5035dae504..8f2c432e78 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemRegistry.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/ItemRegistry.java
@@ -63,7 +63,10 @@ default String getName(ItemType itemType) {
      *
      * @param itemType the item
      * @return the material, or null if the material information is not known
+     * @deprecated ItemMaterial is deprecated with no alternative.
      */
+    @Deprecated(forRemoval = true)
     @Nullable
+    @SuppressWarnings("removal")
     ItemMaterial getMaterial(ItemType itemType);
 }
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/PassthroughItemMaterial.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/PassthroughItemMaterial.java
index 7ded7c5baf..589d7e36f2 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/PassthroughItemMaterial.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/PassthroughItemMaterial.java
@@ -23,6 +23,8 @@
 
 import static com.sk89q.worldedit.util.GuavaUtil.firstNonNull;
 
+@Deprecated(forRemoval = true)
+@SuppressWarnings("removal")
 public class PassthroughItemMaterial implements ItemMaterial {
 
     private static final ItemMaterial DEFAULT_MATERIAL = new SimpleItemMaterial(0, 0);
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/SimpleItemMaterial.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/SimpleItemMaterial.java
index cf2b7dc155..72a1fa8159 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/SimpleItemMaterial.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/SimpleItemMaterial.java
@@ -19,5 +19,7 @@
 
 package com.sk89q.worldedit.world.registry;
 
+@Deprecated(forRemoval = true)
+@SuppressWarnings("removal")
 public record SimpleItemMaterial(int maxStackSize, int maxDamage) implements ItemMaterial {
 }
diff --git a/worldedit-fabric/src/main/java/com/sk89q/worldedit/fabric/FabricItemRegistry.java b/worldedit-fabric/src/main/java/com/sk89q/worldedit/fabric/FabricItemRegistry.java
index bd3d74c40b..5abe115fba 100644
--- a/worldedit-fabric/src/main/java/com/sk89q/worldedit/fabric/FabricItemRegistry.java
+++ b/worldedit-fabric/src/main/java/com/sk89q/worldedit/fabric/FabricItemRegistry.java
@@ -25,6 +25,7 @@
 import com.sk89q.worldedit.world.item.ItemType;
 import com.sk89q.worldedit.world.registry.BundledItemRegistry;
 
+@SuppressWarnings("deprecation")
 public class FabricItemRegistry extends BundledItemRegistry {
 
     @Override
diff --git a/worldedit-neoforge/src/main/java/com/sk89q/worldedit/neoforge/NeoForgeItemRegistry.java b/worldedit-neoforge/src/main/java/com/sk89q/worldedit/neoforge/NeoForgeItemRegistry.java
index 7b9d2a9baf..214198d84e 100644
--- a/worldedit-neoforge/src/main/java/com/sk89q/worldedit/neoforge/NeoForgeItemRegistry.java
+++ b/worldedit-neoforge/src/main/java/com/sk89q/worldedit/neoforge/NeoForgeItemRegistry.java
@@ -25,6 +25,7 @@
 import com.sk89q.worldedit.world.item.ItemType;
 import com.sk89q.worldedit.world.registry.BundledItemRegistry;
 
+@SuppressWarnings("deprecation")
 public class NeoForgeItemRegistry extends BundledItemRegistry {
 
     @Override
diff --git a/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeItemRegistry.java b/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeItemRegistry.java
index 23936cbb2e..b57be8d4a0 100644
--- a/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeItemRegistry.java
+++ b/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeItemRegistry.java
@@ -29,6 +29,7 @@
 import org.spongepowered.api.Sponge;
 import org.spongepowered.api.registry.RegistryTypes;
 
+@SuppressWarnings("deprecation")
 public class SpongeItemRegistry extends BundledItemRegistry {
 
     @Override