Protocol Update 1.21.40 (#5091)

Co-authored-by: Camotoy <20743703+Camotoy@users.noreply.github.com>

bootstrap/standalone/src/main/resources/log4j2.xml

@@ -20,6 +20,9 @@
             <AppenderRef ref="TerminalConsole"/>
             <AppenderRef ref="Console"/>
             <AppenderRef ref="File"/>
+            <filters>
+                <MarkerFilter marker="packet_logging" onMatch="DENY" onMismatch="ACCEPT" />
+            </filters>
         </Root>
     </Loggers>
 </Configuration>

core/src/main/java/org/geysermc/geyser/impl/camera/CameraDefinitions.java

@@ -43,13 +43,13 @@ public class CameraDefinitions {
 
     static {
         CAMERA_PRESETS = List.of(
-            new CameraPreset(CameraPerspective.FIRST_PERSON.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null),
+            new CameraPreset(CameraPerspective.FIRST_PERSON.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()),
-            new CameraPreset(CameraPerspective.FREE.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null),
+            new CameraPreset(CameraPerspective.FREE.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()),
-            new CameraPreset(CameraPerspective.THIRD_PERSON.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null),
+            new CameraPreset(CameraPerspective.THIRD_PERSON.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()),
-            new CameraPreset(CameraPerspective.THIRD_PERSON_FRONT.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null),
+            new CameraPreset(CameraPerspective.THIRD_PERSON_FRONT.id(), "", null, null, null, null, null, null, OptionalBoolean.empty(), null, OptionalBoolean.empty(), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()),
-            new CameraPreset("geyser:free_audio", "minecraft:free", null, null, null, null, null, CameraAudioListener.PLAYER, OptionalBoolean.empty(), null, OptionalBoolean.of(false), null),
+            new CameraPreset("geyser:free_audio", "minecraft:free", null, null, null, null, null, CameraAudioListener.PLAYER, OptionalBoolean.empty(), null, OptionalBoolean.of(false), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()),
-            new CameraPreset("geyser:free_effects", "minecraft:free", null, null, null, null, null, CameraAudioListener.CAMERA, OptionalBoolean.empty(), null, OptionalBoolean.of(true), null),
+            new CameraPreset("geyser:free_effects", "minecraft:free", null, null, null, null, null, CameraAudioListener.CAMERA, OptionalBoolean.empty(), null, OptionalBoolean.of(true), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()),
-            new CameraPreset("geyser:free_audio_effects", "minecraft:free", null, null, null, null, null,  CameraAudioListener.PLAYER, OptionalBoolean.empty(), null, OptionalBoolean.of(true), null));
+            new CameraPreset("geyser:free_audio_effects", "minecraft:free", null, null, null, null, null,  CameraAudioListener.PLAYER, OptionalBoolean.empty(), null, OptionalBoolean.of(true), null, null, null, OptionalBoolean.empty(), OptionalBoolean.empty()));
 
         SimpleDefinitionRegistry.Builder<NamedDefinition> builder = SimpleDefinitionRegistry.builder();
         for (int i = 0; i < CAMERA_PRESETS.size(); i++) {

core/src/main/java/org/geysermc/geyser/inventory/updater/AnvilInventoryUpdater.java

@@ -27,7 +27,6 @@ package org.geysermc.geyser.inventory.updater;
 
 import it.unimi.dsi.fastutil.objects.Object2IntMap;
 import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
-import java.util.stream.IntStream;
 import net.kyori.adventure.text.Component;
 import org.cloudburstmc.nbt.NbtMap;
 import org.cloudburstmc.nbt.NbtMapBuilder;
@@ -41,8 +40,8 @@ import org.geysermc.geyser.inventory.AnvilContainer;
 import org.geysermc.geyser.inventory.GeyserItemStack;
 import org.geysermc.geyser.inventory.Inventory;
 import org.geysermc.geyser.inventory.item.BedrockEnchantment;
-import org.geysermc.geyser.item.enchantment.Enchantment;
 import org.geysermc.geyser.item.Items;
+import org.geysermc.geyser.item.enchantment.Enchantment;
 import org.geysermc.geyser.session.GeyserSession;
 import org.geysermc.geyser.session.cache.tags.EnchantmentTag;
 import org.geysermc.geyser.session.cache.tags.ItemTag;
@@ -57,6 +56,7 @@ import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.inventory.S
 
 import java.util.Map;
 import java.util.Objects;
+import java.util.stream.IntStream;
 
 public class AnvilInventoryUpdater extends InventoryUpdater {
     public static final AnvilInventoryUpdater INSTANCE = new AnvilInventoryUpdater();
@@ -81,6 +81,7 @@ public class AnvilInventoryUpdater extends InventoryUpdater {
                 slotPacket.setSlot(bedrockSlot);
                 slotPacket.setItem(inventory.getItem(i).getItemData(session));
                 slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+                slotPacket.setStorageItem(ItemData.AIR);
                 session.sendUpstreamPacket(slotPacket);
             }
         }
@@ -102,6 +103,7 @@ public class AnvilInventoryUpdater extends InventoryUpdater {
             slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
             slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
             slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            slotPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(slotPacket);
         } else if (lastTargetSlot != javaSlot) {
             // Update the previous target slot to remove repair cost changes
@@ -110,6 +112,7 @@ public class AnvilInventoryUpdater extends InventoryUpdater {
             slotPacket.setSlot(translator.javaSlotToBedrock(lastTargetSlot));
             slotPacket.setItem(inventory.getItem(lastTargetSlot).getItemData(session));
             slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            slotPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(slotPacket);
         }
 
@@ -174,6 +177,7 @@ public class AnvilInventoryUpdater extends InventoryUpdater {
         slotPacket.setSlot(translator.javaSlotToBedrock(slot));
         slotPacket.setItem(itemData);
         slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        slotPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(slotPacket);
     }
 

core/src/main/java/org/geysermc/geyser/inventory/updater/ChestInventoryUpdater.java

@@ -64,6 +64,7 @@ public class ChestInventoryUpdater extends InventoryUpdater {
         contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(bedrockItems);
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
     }
 
@@ -77,6 +78,7 @@ public class ChestInventoryUpdater extends InventoryUpdater {
         slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
         slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
         slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        slotPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(slotPacket);
         return true;
     }

core/src/main/java/org/geysermc/geyser/inventory/updater/ContainerInventoryUpdater.java

@@ -52,6 +52,7 @@ public class ContainerInventoryUpdater extends InventoryUpdater {
         contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(Arrays.asList(bedrockItems));
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
     }
 
@@ -65,6 +66,7 @@ public class ContainerInventoryUpdater extends InventoryUpdater {
         slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
         slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
         slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        slotPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(slotPacket);
         return true;
     }

core/src/main/java/org/geysermc/geyser/inventory/updater/CrafterInventoryUpdater.java

@@ -59,6 +59,7 @@ public class CrafterInventoryUpdater extends InventoryUpdater {
         contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(Arrays.asList(bedrockItems));
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
 
         // inventory and hotbar
@@ -71,6 +72,7 @@ public class CrafterInventoryUpdater extends InventoryUpdater {
         contentPacket.setContainerId(ContainerId.INVENTORY);
         contentPacket.setContents(Arrays.asList(bedrockItems));
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
 
         // Crafter result - it doesn't come after the grid, as explained elsewhere.
@@ -93,6 +95,7 @@ public class CrafterInventoryUpdater extends InventoryUpdater {
         packet.setSlot(translator.javaSlotToBedrock(javaSlot));
         packet.setItem(inventory.getItem(javaSlot).getItemData(session));
         packet.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        packet.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(packet);
         return true;
     }

core/src/main/java/org/geysermc/geyser/inventory/updater/HorseInventoryUpdater.java

@@ -52,6 +52,7 @@ public class HorseInventoryUpdater extends InventoryUpdater {
         contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(Arrays.asList(bedrockItems));
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
     }
 
@@ -65,6 +66,7 @@ public class HorseInventoryUpdater extends InventoryUpdater {
         slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
         slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
         slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        slotPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(slotPacket);
         return true;
     }

core/src/main/java/org/geysermc/geyser/inventory/updater/InventoryUpdater.java

@@ -48,6 +48,7 @@ public class InventoryUpdater {
         contentPacket.setContainerId(ContainerId.INVENTORY);
         contentPacket.setContents(Arrays.asList(bedrockItems));
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
     }
 
@@ -58,6 +59,7 @@ public class InventoryUpdater {
             slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
             slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
             slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            slotPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(slotPacket);
             return true;
         }

core/src/main/java/org/geysermc/geyser/inventory/updater/UIInventoryUpdater.java

@@ -28,6 +28,7 @@ package org.geysermc.geyser.inventory.updater;
 import org.cloudburstmc.protocol.bedrock.data.inventory.ContainerId;
 import org.cloudburstmc.protocol.bedrock.data.inventory.ContainerSlotType;
 import org.cloudburstmc.protocol.bedrock.data.inventory.FullContainerName;
+import org.cloudburstmc.protocol.bedrock.data.inventory.ItemData;
 import org.cloudburstmc.protocol.bedrock.packet.InventorySlotPacket;
 import org.geysermc.geyser.inventory.Inventory;
 import org.geysermc.geyser.session.GeyserSession;
@@ -49,6 +50,7 @@ public class UIInventoryUpdater extends InventoryUpdater {
             slotPacket.setSlot(bedrockSlot);
             slotPacket.setItem(inventory.getItem(i).getItemData(session));
             slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            slotPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(slotPacket);
         }
     }
@@ -63,6 +65,7 @@ public class UIInventoryUpdater extends InventoryUpdater {
         slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
         slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
         slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        slotPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(slotPacket);
         return true;
     }

core/src/main/java/org/geysermc/geyser/level/block/type/BlockState.java

@@ -63,7 +63,7 @@ public final class BlockState {
             return null;
         }
         //noinspection unchecked
-        return (T) get(property);
+        return (T) value;
     }
 
     public <T extends Comparable<T>> T getValue(Property<T> property, T def) {

core/src/main/java/org/geysermc/geyser/network/CodecProcessor.java

@@ -44,6 +44,8 @@ import org.cloudburstmc.protocol.bedrock.codec.v712.serializer.InventorySlotSeri
 import org.cloudburstmc.protocol.bedrock.codec.v712.serializer.MobArmorEquipmentSerializer_v712;
 import org.cloudburstmc.protocol.bedrock.codec.v729.serializer.InventoryContentSerializer_v729;
 import org.cloudburstmc.protocol.bedrock.codec.v729.serializer.InventorySlotSerializer_v729;
+import org.cloudburstmc.protocol.bedrock.codec.v748.serializer.InventoryContentSerializer_v748;
+import org.cloudburstmc.protocol.bedrock.codec.v748.serializer.InventorySlotSerializer_v748;
 import org.cloudburstmc.protocol.bedrock.packet.AnvilDamagePacket;
 import org.cloudburstmc.protocol.bedrock.packet.BedrockPacket;
 import org.cloudburstmc.protocol.bedrock.packet.BossEventPacket;
@@ -140,6 +142,13 @@ class CodecProcessor {
         }
     };
 
+    private static final BedrockPacketSerializer<InventoryContentPacket> INVENTORY_CONTENT_SERIALIZER_V748 = new InventoryContentSerializer_v748() {
+        @Override
+        public void deserialize(ByteBuf buffer, BedrockCodecHelper helper, InventoryContentPacket packet) {
+            throw new IllegalArgumentException("Client cannot send InventoryContentPacket in server-auth inventory environment!");
+        }
+    };
+
     private static final BedrockPacketSerializer<InventoryContentPacket> INVENTORY_CONTENT_SERIALIZER_V729 = new InventoryContentSerializer_v729() {
         @Override
         public void deserialize(ByteBuf buffer, BedrockCodecHelper helper, InventoryContentPacket packet) {
@@ -174,6 +183,13 @@ class CodecProcessor {
         }
     };
 
+    private static final BedrockPacketSerializer<InventorySlotPacket> INVENTORY_SLOT_SERIALIZER_V748 = new InventorySlotSerializer_v748() {
+        @Override
+        public void deserialize(ByteBuf buffer, BedrockCodecHelper helper, InventorySlotPacket packet) {
+            throw new IllegalArgumentException("Client cannot send InventorySlotPacket in server-auth inventory environment!");
+        }
+    };
+
     /**
      * Serializer that does nothing when trying to deserialize BossEventPacket since it is not used from the client.
      */
@@ -262,11 +278,14 @@ class CodecProcessor {
 
     @SuppressWarnings("unchecked")
     static BedrockCodec processCodec(BedrockCodec codec) {
+        boolean is748OrAbove = codec.getProtocolVersion() >= 748;
         boolean is729OrAbove = codec.getProtocolVersion() >= 729;
         boolean is712OrAbove = codec.getProtocolVersion() >= 712;
 
         BedrockPacketSerializer<InventoryContentPacket> inventoryContentSerializer;
-        if (is729OrAbove) {
+        if (is748OrAbove) {
+            inventoryContentSerializer = INVENTORY_CONTENT_SERIALIZER_V748;
+        } else if (is729OrAbove) {
             inventoryContentSerializer = INVENTORY_CONTENT_SERIALIZER_V729;
         } else if (is712OrAbove) {
             inventoryContentSerializer = INVENTORY_CONTENT_SERIALIZER_V712;
@@ -275,7 +294,9 @@ class CodecProcessor {
         }
 
         BedrockPacketSerializer<InventorySlotPacket> inventorySlotSerializer;
-        if (is729OrAbove) {
+        if (is748OrAbove) {
+            inventorySlotSerializer = INVENTORY_SLOT_SERIALIZER_V748;
+        } else if (is729OrAbove) {
             inventorySlotSerializer = INVENTORY_SLOT_SERIALIZER_V729;
         } else if (is712OrAbove) {
             inventorySlotSerializer = INVENTORY_SLOT_SERIALIZER_V712;

core/src/main/java/org/geysermc/geyser/network/GameProtocol.java

@@ -32,6 +32,7 @@ import org.cloudburstmc.protocol.bedrock.codec.v685.Bedrock_v685;
 import org.cloudburstmc.protocol.bedrock.codec.v686.Bedrock_v686;
 import org.cloudburstmc.protocol.bedrock.codec.v712.Bedrock_v712;
 import org.cloudburstmc.protocol.bedrock.codec.v729.Bedrock_v729;
+import org.cloudburstmc.protocol.bedrock.codec.v748.Bedrock_v748;
 import org.cloudburstmc.protocol.bedrock.netty.codec.packet.BedrockPacketCodec;
 import org.geysermc.geyser.session.GeyserSession;
 import org.geysermc.mcprotocollib.protocol.codec.MinecraftCodec;
@@ -50,8 +51,8 @@ public final class GameProtocol {
      * Default Bedrock codec that should act as a fallback. Should represent the latest available
      * release of the game that Geyser supports.
      */
-    public static final BedrockCodec DEFAULT_BEDROCK_CODEC = CodecProcessor.processCodec(Bedrock_v729.CODEC.toBuilder()
+    public static final BedrockCodec DEFAULT_BEDROCK_CODEC = CodecProcessor.processCodec(Bedrock_v748.CODEC.toBuilder()
-        .minecraftVersion("1.21.31")
+        .minecraftVersion("1.21.40")
         .build());
 
     /**
@@ -78,8 +79,11 @@ public final class GameProtocol {
         SUPPORTED_BEDROCK_CODECS.add(CodecProcessor.processCodec(Bedrock_v712.CODEC.toBuilder()
             .minecraftVersion("1.21.20 - 1.21.23")
             .build()));
-        SUPPORTED_BEDROCK_CODECS.add(DEFAULT_BEDROCK_CODEC.toBuilder()
+        SUPPORTED_BEDROCK_CODECS.add(CodecProcessor.processCodec(Bedrock_v729.CODEC.toBuilder()
                 .minecraftVersion("1.21.30/1.21.31")
+                .build()));
+        SUPPORTED_BEDROCK_CODECS.add(DEFAULT_BEDROCK_CODEC.toBuilder()
+            .minecraftVersion("1.21.40")
             .build());
     }
 
@@ -107,6 +111,10 @@ public final class GameProtocol {
         return session.getUpstream().getProtocolVersion() < Bedrock_v686.CODEC.getProtocolVersion();
     }
 
+    public static boolean isPre1_21_40(GeyserSession session) {
+        return session.getUpstream().getProtocolVersion() < Bedrock_v748.CODEC.getProtocolVersion();
+    }
+
     /**
      * Gets the {@link PacketCodec} for Minecraft: Java Edition.
      *

core/src/main/java/org/geysermc/geyser/network/UpstreamPacketHandler.java

@@ -209,7 +209,7 @@ public class UpstreamPacketHandler extends LoggingPacketHandler {
             ResourcePackManifest.Header header = pack.manifest().header();
             resourcePacksInfo.getResourcePackInfos().add(new ResourcePacksInfoPacket.Entry(
                     header.uuid().toString(), header.version().toString(), codec.size(), pack.contentKey(),
-                    "", header.uuid().toString(), false, false, false));
+                    "", header.uuid().toString(), false, false, false, ""));
         }
         resourcePacksInfo.setForcedToAccept(GeyserImpl.getInstance().getConfig().isForceResourcePacks());
         session.sendUpstreamPacket(resourcePacksInfo);

core/src/main/java/org/geysermc/geyser/registry/populator/BlockRegistryPopulator.java

@@ -48,6 +48,7 @@ import org.cloudburstmc.protocol.bedrock.codec.v671.Bedrock_v671;
 import org.cloudburstmc.protocol.bedrock.codec.v685.Bedrock_v685;
 import org.cloudburstmc.protocol.bedrock.codec.v712.Bedrock_v712;
 import org.cloudburstmc.protocol.bedrock.codec.v729.Bedrock_v729;
+import org.cloudburstmc.protocol.bedrock.codec.v748.Bedrock_v748;
 import org.cloudburstmc.protocol.bedrock.data.BlockPropertyData;
 import org.cloudburstmc.protocol.bedrock.data.definitions.BlockDefinition;
 import org.geysermc.geyser.GeyserImpl;
@@ -60,6 +61,7 @@ import org.geysermc.geyser.level.block.property.Properties;
 import org.geysermc.geyser.level.block.type.Block;
 import org.geysermc.geyser.level.block.type.BlockState;
 import org.geysermc.geyser.level.block.type.FlowerPotBlock;
+import org.geysermc.geyser.level.block.type.SkullBlock;
 import org.geysermc.geyser.level.physics.PistonBehavior;
 import org.geysermc.geyser.registry.BlockRegistries;
 import org.geysermc.geyser.registry.Registries;
@@ -129,6 +131,16 @@ public final class BlockRegistryPopulator {
                 .put(ObjectIntPair.of("1_21_0", Bedrock_v685.CODEC.getProtocolVersion()), Conversion712_685::remapBlock)
                 .put(ObjectIntPair.of("1_21_20", Bedrock_v712.CODEC.getProtocolVersion()), Conversion729_712::remapBlock)
                 .put(ObjectIntPair.of("1_21_30", Bedrock_v729.CODEC.getProtocolVersion()), tag -> tag)
+                .put(ObjectIntPair.of("1_21_40", Bedrock_v748.CODEC.getProtocolVersion()), tag -> {
+                    final String name = tag.getString("name");
+                    if (name.endsWith("_wood") && tag.getCompound("states").containsKey("stripped_bit")) {
+                        NbtMapBuilder builder = tag.getCompound("states").toBuilder();
+                        builder.remove("stripped_bit");
+                        NbtMap states = builder.build();
+                        return tag.toBuilder().putCompound("states", states).build();
+                    }
+                    return tag;
+                })
                 .build();
 
         // We can keep this strong as nothing should be garbage collected
@@ -262,6 +274,15 @@ public final class BlockRegistryPopulator {
                 NbtMap originalBedrockTag = buildBedrockState(blockState, entry);
                 NbtMap bedrockTag = stateMapper.remap(originalBedrockTag);
 
+                // FIXME TEMPORARY
+                if (blockState.block() instanceof SkullBlock && palette.valueInt() >= Bedrock_v748.CODEC.getProtocolVersion()) {
+                    // The flattening must be a very interesting process.
+                    String skullName = blockState.block().javaIdentifier().asString().replace("_wall", "");
+                    bedrockTag = bedrockTag.toBuilder()
+                        .putString("name", skullName)
+                        .build();
+                }
+
                 GeyserBedrockBlock vanillaBedrockDefinition = blockStateOrderedMap.get(bedrockTag);
 
                 GeyserBedrockBlock bedrockDefinition;

core/src/main/java/org/geysermc/geyser/registry/populator/ItemRegistryPopulator.java

@@ -43,6 +43,7 @@ import org.cloudburstmc.protocol.bedrock.codec.v671.Bedrock_v671;
 import org.cloudburstmc.protocol.bedrock.codec.v685.Bedrock_v685;
 import org.cloudburstmc.protocol.bedrock.codec.v712.Bedrock_v712;
 import org.cloudburstmc.protocol.bedrock.codec.v729.Bedrock_v729;
+import org.cloudburstmc.protocol.bedrock.codec.v748.Bedrock_v748;
 import org.cloudburstmc.protocol.bedrock.data.definitions.BlockDefinition;
 import org.cloudburstmc.protocol.bedrock.data.definitions.ItemDefinition;
 import org.cloudburstmc.protocol.bedrock.data.definitions.SimpleItemDefinition;
@@ -95,6 +96,7 @@ public class ItemRegistryPopulator {
         paletteVersions.add(new PaletteVersion("1_21_0", Bedrock_v685.CODEC.getProtocolVersion(), Collections.emptyMap(), Conversion712_685::remapItem));
         paletteVersions.add(new PaletteVersion("1_21_20", Bedrock_v712.CODEC.getProtocolVersion(), Collections.emptyMap(), Conversion729_712::remapItem));
         paletteVersions.add(new PaletteVersion("1_21_30", Bedrock_v729.CODEC.getProtocolVersion()));
+        paletteVersions.add(new PaletteVersion("1_21_40", Bedrock_v748.CODEC.getProtocolVersion()));
 
         GeyserBootstrap bootstrap = GeyserImpl.getInstance().getBootstrap();
 

core/src/main/java/org/geysermc/geyser/translator/inventory/OldSmithingTableTranslator.java

@@ -141,6 +141,7 @@ public class OldSmithingTableTranslator extends AbstractBlockInventoryTranslator
         slotPacket.setSlot(53);
         slotPacket.setItem(UPGRADE_TEMPLATE.apply(session.getUpstream().getProtocolVersion()));
         slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        slotPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(slotPacket);
     }
 }

core/src/main/java/org/geysermc/geyser/translator/inventory/PlayerInventoryTranslator.java

@@ -85,6 +85,7 @@ public class PlayerInventoryTranslator extends InventoryTranslator {
         }
         inventoryContentPacket.setContents(Arrays.asList(contents));
         inventoryContentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        inventoryContentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(inventoryContentPacket);
 
         // Armor
@@ -102,6 +103,7 @@ public class PlayerInventoryTranslator extends InventoryTranslator {
         }
         armorContentPacket.setContents(Arrays.asList(contents));
         armorContentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        armorContentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(armorContentPacket);
 
         // Offhand
@@ -109,6 +111,7 @@ public class PlayerInventoryTranslator extends InventoryTranslator {
         offhandPacket.setContainerId(ContainerId.OFFHAND);
         offhandPacket.setContents(Collections.singletonList(inventory.getItem(45).getItemData(session)));
         offhandPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        offhandPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(offhandPacket);
     }
 
@@ -131,6 +134,7 @@ public class PlayerInventoryTranslator extends InventoryTranslator {
             }
 
             slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            slotPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(slotPacket);
         }
     }
@@ -168,12 +172,14 @@ public class PlayerInventoryTranslator extends InventoryTranslator {
             }
             slotPacket.setItem(bedrockItem);
             slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            slotPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(slotPacket);
         } else if (slot == 45) {
             InventoryContentPacket offhandPacket = new InventoryContentPacket();
             offhandPacket.setContainerId(ContainerId.OFFHAND);
             offhandPacket.setContents(Collections.singletonList(bedrockItem));
             offhandPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+            offhandPacket.setStorageItem(ItemData.AIR);
             session.sendUpstreamPacket(offhandPacket);
         }
     }

core/src/main/java/org/geysermc/geyser/translator/inventory/horse/ChestedHorseInventoryTranslator.java

@@ -96,6 +96,7 @@ public abstract class ChestedHorseInventoryTranslator extends AbstractHorseInven
         contentPacket.setContainerId(ContainerId.INVENTORY);
         contentPacket.setContents(Arrays.asList(bedrockItems));
         contentPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        contentPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(contentPacket);
 
         ItemData[] horseItems = new ItemData[chestSize + 1];
@@ -110,6 +111,7 @@ public abstract class ChestedHorseInventoryTranslator extends AbstractHorseInven
         horseContentsPacket.setContainerId(inventory.getBedrockId());
         horseContentsPacket.setContents(Arrays.asList(horseItems));
         horseContentsPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        horseContentsPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(horseContentsPacket);
     }
 }

core/src/main/java/org/geysermc/geyser/translator/level/block/entity/SkullBlockEntityTranslator.java

@@ -36,6 +36,7 @@ import org.geysermc.geyser.GeyserImpl;
 import org.geysermc.geyser.level.block.property.Properties;
 import org.geysermc.geyser.level.block.type.BlockState;
 import org.geysermc.geyser.level.block.type.SkullBlock;
+import org.geysermc.geyser.network.GameProtocol;
 import org.geysermc.geyser.session.GeyserSession;
 import org.geysermc.geyser.session.cache.SkullCache;
 import org.geysermc.geyser.skin.SkinProvider;
@@ -57,7 +58,9 @@ public class SkullBlockEntityTranslator extends BlockEntityTranslator implements
             // Could be a wall skull block otherwise, which has rotation in its Bedrock state
             bedrockNbt.putFloat("Rotation", rotation * 22.5f);
         }
+        if (GameProtocol.isPre1_21_40(session)) {
             bedrockNbt.putByte("SkullType", (byte) (blockState.block() instanceof SkullBlock skull ? skull.skullType().bedrockId() : 0));
+        }
         if (blockState.getValue(Properties.POWERED)) {
             bedrockNbt.putBoolean("MouthMoving", true);
         }

core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaEntityEventTranslator.java

@@ -32,6 +32,7 @@ import org.cloudburstmc.protocol.bedrock.data.entity.EntityEventType;
 import org.cloudburstmc.protocol.bedrock.data.inventory.ContainerId;
 import org.cloudburstmc.protocol.bedrock.data.inventory.ContainerSlotType;
 import org.cloudburstmc.protocol.bedrock.data.inventory.FullContainerName;
+import org.cloudburstmc.protocol.bedrock.data.inventory.ItemData;
 import org.cloudburstmc.protocol.bedrock.packet.EntityEventPacket;
 import org.cloudburstmc.protocol.bedrock.packet.InventoryContentPacket;
 import org.cloudburstmc.protocol.bedrock.packet.LevelEventPacket;
@@ -170,6 +171,7 @@ public class JavaEntityEventTranslator extends PacketTranslator<ClientboundEntit
                     offhandPacket.setContainerId(ContainerId.OFFHAND);
                     offhandPacket.setContents(Collections.singletonList(InventoryUtils.getTotemOfUndying().apply(session.getUpstream().getProtocolVersion())));
                     offhandPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+                    offhandPacket.setStorageItem(ItemData.AIR);
                     session.sendUpstreamPacket(offhandPacket);
                 }
 

core/src/main/java/org/geysermc/geyser/translator/protocol/java/inventory/JavaContainerSetSlotTranslator.java

@@ -183,6 +183,7 @@ public class JavaContainerSetSlotTranslator extends PacketTranslator<Clientbound
                     slotPacket.setSlot(col + (row * gridDimensions) + offset);
                     slotPacket.setItem(ItemData.AIR);
                     slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+                    slotPacket.setStorageItem(ItemData.AIR);
                     session.sendUpstreamPacket(slotPacket);
                     index++;
                 }
@@ -216,6 +217,7 @@ public class JavaContainerSetSlotTranslator extends PacketTranslator<Clientbound
                     slotPacket.setSlot(col + (row * gridDimensions) + offset);
                     slotPacket.setItem(ingredients[index]);
                     slotPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+                    slotPacket.setStorageItem(ItemData.AIR);
                     session.sendUpstreamPacket(slotPacket);
                     index++;
                 }

core/src/main/java/org/geysermc/geyser/util/InventoryUtils.java

@@ -183,6 +183,7 @@ public class InventoryUtils {
         cursorPacket.setSlot(0);
         cursorPacket.setItem(session.getPlayerInventory().getCursor().getItemData(session));
         cursorPacket.setContainerNameData(new FullContainerName(ContainerSlotType.ANVIL_INPUT, null));
+        cursorPacket.setStorageItem(ItemData.AIR);
         session.sendUpstreamPacket(cursorPacket);
     }
 

gradle/libs.versions.toml

@@ -10,9 +10,9 @@ netty-io-uring = "0.0.25.Final-SNAPSHOT"
 guava = "29.0-jre"
 gson = "2.3.1" # Provided by Spigot 1.8.8
 websocket = "1.5.1"
-protocol-connection = "3.0.0.Beta5-20240916.181041-6"
+protocol-connection = "3.0.0.Beta5-20241021.154858-12"
-protocol-common = "3.0.0.Beta5-20240916.181041-6"
+protocol-common = "3.0.0.Beta5-20241021.154858-12"
-protocol-codec = "3.0.0.Beta5-20240916.181041-6"
+protocol-codec = "3.0.0.Beta5-20241021.154858-12"
 raknet = "1.0.0.CR3-20240416.144209-1"
 minecraftauth = "4.1.1"
 mcprotocollib = "1.21-20241010.155958-24"