Codebase cleanup

Signed-off-by: Florian Reuth <git@florianreuth.de>

.github/FUNDING.yml

@@ -1,2 +1,2 @@
-github: FlorianMichael
-custom: [ 'https://florianmichael.de/donate', 'https://creeper123123321.github.io/#donate' ]
+github: florianreuth
+custom: [ 'https://florianreuth.de/donate', 'https://creeper123123321.github.io/#donate' ]

.github/dependabot.yml

@@ -1,10 +1,14 @@
 version: 2
 updates:
   - package-ecosystem: "gradle"
+    cooldown:
+      default-days: 7
     directory: "/"
     schedule:
-      interval: "daily"
+      interval: "monthly"
   - package-ecosystem: "github-actions"
+    cooldown:
+      default-days: 7
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "monthly"

.github/workflows/build.yml

@@ -1,21 +1,30 @@
 name: Build
-on: [ pull_request, push, workflow_dispatch ]
+on: [pull_request, push, workflow_dispatch]
+permissions:
+  contents: read
 
 jobs:
   build:
-    runs-on: ubuntu-22.04
+    # Only run on PRs if the source branch is on a different repo. We do not need to run everything twice.
+    if: ${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # 6.0.2
         with:
           persist-credentials: false
       - name: Set up Gradle
-        uses: gradle/actions/setup-gradle@v4
+        uses: gradle/actions/setup-gradle@50e97c2cd7a37755bbfafc9c5b7cafaece252f6e # 6.1.0
       - name: Set up JDK 17
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # 5.2.0
         with:
           distribution: 'temurin'
           java-version: 17
           check-latest: true
       - name: Build with Gradle
         run: ./gradlew build
+      - name: Upload Artifacts to GitHub
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # 7.0.0
+        with:
+          name: Artifacts
+          path: build/libs/

.github/workflows/publish.yml

@@ -4,6 +4,10 @@ on:
     branches:
       - master
       - dev
+  workflow_dispatch:
+
+permissions:
+  contents: read
 
 jobs:
   publish:
@@ -11,18 +15,18 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # 6.0.2
         with:
           persist-credentials: false
       - name: Set up Gradle
-        uses: gradle/actions/setup-gradle@v4
+        uses: gradle/actions/setup-gradle@50e97c2cd7a37755bbfafc9c5b7cafaece252f6e # 6.1.0
       - name: Set up JDK 17
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # 5.2.0
         with:
           distribution: 'temurin'
           java-version: 17
           check-latest: true
-      - name: Build
+      - name: Build with Gradle
         run: ./gradlew build
       - name: Publish to Hangar
         env:

build.gradle.kts

@@ -1,10 +1,10 @@
-import de.florianmichael.baseproject.*
+import de.florianreuth.baseproject.*
 
 plugins {
     `java-library`
     id("io.papermc.hangar-publish-plugin")
     id("com.modrinth.minotaur")
-    id("de.florianmichael.baseproject.BaseProject")
+    id("de.florianreuth.baseproject")
 }
 
 allprojects {
@@ -24,8 +24,8 @@ allprojects {
 subprojects {
 
     dependencies {
-        compileOnly("com.viaversion:viaversion:5.5.0")
-        compileOnly("com.viaversion:viabackwards:5.5.0")
+        compileOnly("com.viaversion:viaversion:5.7.2")
+        compileOnly("com.viaversion:viabackwards:5.7.2")
     }
 
     tasks {

bukkit/src/main/java/com/viaversion/viarewind/BukkitPlugin.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,8 +18,11 @@
 package com.viaversion.viarewind;
 
 import com.viaversion.viarewind.api.ViaRewindPlatform;
+import com.viaversion.viarewind.protocol.v1_9to1_8.provider.InventoryProvider;
+import com.viaversion.viarewind.provider.BukkitInventoryProvider;
 import com.viaversion.viaversion.api.Via;
 import java.io.File;
+import com.viaversion.viaversion.api.platform.providers.ViaProviders;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public class BukkitPlugin extends JavaPlugin implements ViaRewindPlatform {
@@ -27,4 +30,10 @@ public class BukkitPlugin extends JavaPlugin implements ViaRewindPlatform {
     public BukkitPlugin() {
         Via.getManager().addEnableListener(() -> this.init(new File(getDataFolder(), "config.yml")));
     }
+
+    @Override
+    public void onEnable() {
+        final ViaProviders providers = Via.getManager().getProviders();
+        providers.use(InventoryProvider.class, new BukkitInventoryProvider());
+    }
 }

bukkit/src/main/java/com/viaversion/viarewind/provider/BukkitInventoryProvider.java

@@ -0,0 +1,36 @@
+/*
+ * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
+ * Copyright (C) 2018-2026 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viarewind.provider;
+
+import com.viaversion.viarewind.protocol.v1_9to1_8.provider.InventoryProvider;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+public final class BukkitInventoryProvider extends InventoryProvider {
+
+    @Override
+    public boolean hasElytra(final UserConnection connection) {
+        final Player player = Bukkit.getPlayer(connection.getProtocolInfo().getUuid());
+        final ItemStack chestplate = player.getInventory().getChestplate();
+        return chestplate != null && chestplate.getType() == Material.ELYTRA;
+    }
+
+}

bukkit/src/main/resources/plugin.yml

@@ -1,6 +1,6 @@
 name: ViaRewind
 main: com.viaversion.viarewind.BukkitPlugin
-authors: [ FlorianMichael/EnZaXD, Gerrygames, creeper123123321 ]
+authors: [ EnZaXD, Gerrygames, creeper123123321 ]
 version: ${version}
 description: ${description}
 website: https://viaversion.com/rewind

common/build.gradle.kts

@@ -1,4 +1,4 @@
-import de.florianmichael.baseproject.latestCommitHash
+import de.florianreuth.baseproject.latestCommitHash
 
 plugins {
     id("net.raphimc.class-token-replacer")
@@ -9,8 +9,9 @@ val viaProxy: Configuration by configurations.creating
 dependencies {
     compileOnly("io.netty:netty-all:4.0.20.Final")
     compileOnly("com.google.guava:guava:17.0")
+    compileOnly("com.velocitypowered:velocity-native:3.4.0-SNAPSHOT")
 
-    viaProxy("net.raphimc:ViaProxy:3.4.5-SNAPSHOT") {
+    viaProxy("net.raphimc:ViaProxy:[3.0.0,4.0.0)") {
         isTransitive = false
     }
 }

common/src/main/java/com/viaversion/viarewind/ViaRewind.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/ViaRewindConfig.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -55,8 +55,8 @@ public class ViaRewindConfig extends Config implements com.viaversion.viarewind.
         cooldownIndicator = CooldownIndicator.valueOf(getString("cooldown-indicator", "TITLE").toUpperCase());
         replaceAdventureMode = getBoolean("replace-adventure", false);
         replaceParticles = getBoolean("replace-particles", false);
-        maxBookPages = getInt("max-book-pages", 100);
-        maxBookPageSize = getInt("max-book-page-length", 5000);
+        maxBookPages = getInt("end-book-pages", 100);
+        maxBookPageSize = getInt("end-book-page-length", 5000);
         emulateWorldBorder = getBoolean("emulate-world-border", true);
         alwaysShowOriginalMobName = getBoolean("always-show-original-mob-name", true);
         worldBorderParticle = getString("world-border-particle", "fireworksSpark");

common/src/main/java/com/viaversion/viarewind/ViaRewindPlatformImpl.java

@@ -0,0 +1,43 @@
+/*
+ * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
+ * Copyright (C) 2018-2026 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viarewind;
+
+import com.viaversion.viarewind.api.ViaRewindPlatform;
+import com.viaversion.viaversion.api.Via;
+import java.io.File;
+import java.util.logging.Logger;
+
+public class ViaRewindPlatformImpl implements ViaRewindPlatform {
+
+    private final Logger logger;
+
+    public ViaRewindPlatformImpl() {
+        logger = Via.getPlatform().createLogger("ViaRewind");
+        init(new File(getDataFolder(), "viarewind.yml"));
+    }
+
+    @Override
+    public Logger getLogger() {
+        return logger;
+    }
+
+    @Override
+    public File getDataFolder() {
+        return Via.getPlatform().getDataFolder();
+    }
+}

common/src/main/java/com/viaversion/viarewind/api/ViaRewindConfig.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -54,14 +54,14 @@ public interface ViaRewindConfig extends Config {
     /**
      * Max amount of pages for written books before a client gets kicked
      *
-     * @return the max amount of pages
+     * @return the end amount of pages
      */
     int getMaxBookPages();
 
     /**
      * Max amount of characters in the json (!) string of a book page before a client gets kicked
      *
-     * @return the max amount of characters
+     * @return the end amount of characters
      */
     int getMaxBookPageSize();
 

common/src/main/java/com/viaversion/viarewind/api/ViaRewindPlatform.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -36,11 +36,14 @@ public interface ViaRewindPlatform {
     String VERSION = "${version}";
     String IMPL_VERSION = "${impl_version}";
 
+    default void init(final File configFile) {
+        init(new ViaRewindConfig(configFile, getLogger()));
+    }
+
     /**
      * Initialize ViaRewind
      */
-    default void init(final File configFile) {
-        ViaRewindConfig config = new ViaRewindConfig(configFile, getLogger());
+    default void init(final com.viaversion.viarewind.api.ViaRewindConfig config) {
         config.reload();
         Via.getManager().getConfigurationProvider().register(config);
 

common/src/main/java/com/viaversion/viarewind/api/data/RewindMappingData.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@ import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viarewind.ViaRewind;
 import java.util.logging.Logger;
 
-public class RewindMappingData extends BackwardsMappingData {
+public final class RewindMappingData extends BackwardsMappingData {
 
     public RewindMappingData(String unmappedVersion, String mappedVersion) {
         super(unmappedVersion, mappedVersion);
@@ -37,4 +37,5 @@ public class RewindMappingData extends BackwardsMappingData {
     protected CompoundTag readMappingsFile(String name) {
         return RewindMappingDataLoader.INSTANCE.loadNBTFromDir(name);
     }
+
 }

common/src/main/java/com/viaversion/viarewind/api/data/RewindMappingDataLoader.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@ import com.viaversion.viarewind.ViaRewind;
 import java.io.File;
 import java.util.logging.Logger;
 
-public class RewindMappingDataLoader extends BackwardsMappingDataLoader {
+public final class RewindMappingDataLoader extends BackwardsMappingDataLoader {
 
     public static final RewindMappingDataLoader INSTANCE = new RewindMappingDataLoader();
 
@@ -30,7 +30,6 @@ public class RewindMappingDataLoader extends BackwardsMappingDataLoader {
         super(RewindMappingDataLoader.class, "assets/viarewind/data/");
     }
 
-
     @Override
     public Logger getLogger() {
         return ViaRewind.getPlatform().getLogger();
@@ -40,4 +39,5 @@ public class RewindMappingDataLoader extends BackwardsMappingDataLoader {
     public File getDataFolder() {
         return ViaRewind.getPlatform().getDataFolder();
     }
+
 }

common/src/main/java/com/viaversion/viarewind/api/minecraft/ExtendedBlockStorage.java

@@ -1,77 +0,0 @@
-/*
- * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viarewind.api.minecraft;
-
-import com.viaversion.viaversion.api.minecraft.chunks.ChunkSection;
-import com.viaversion.viaversion.api.minecraft.chunks.NibbleArray;
-
-public class ExtendedBlockStorage {
-    private final byte[] blockLSBArray = new byte[ChunkSection.SIZE];
-
-    private final NibbleArray blockMetadataArray = new NibbleArray(this.blockLSBArray.length);
-    private final NibbleArray blockLightArray = new NibbleArray(this.blockLSBArray.length);
-
-    private NibbleArray blockMSBArray;
-    private NibbleArray skyLightArray;
-
-    public ExtendedBlockStorage(final boolean skylight) {
-        if (skylight) {
-            this.skyLightArray = new NibbleArray(this.blockLSBArray.length);
-        }
-    }
-
-    public void setBlockId(final int x, final int y, final int z, final int value) {
-        this.blockLSBArray[ChunkSection.index(x, y, z)] = (byte) (value & 255);
-        if (value > 255) {
-            this.getOrCreateBlockMSBArray().set(x, y, z, (value & 0xF00) >> 8);
-        } else if (this.blockMSBArray != null) {
-            this.blockMSBArray.set(x, y, z, 0);
-        }
-    }
-
-    public void setBlockMetadata(final int x, final int y, final int z, final int value) {
-        this.blockMetadataArray.set(x, y, z, value);
-    }
-
-    public boolean hasBlockMSBArray() {
-        return this.blockMSBArray != null;
-    }
-
-    public byte[] getBlockLSBArray() {
-        return this.blockLSBArray;
-    }
-
-    public NibbleArray getOrCreateBlockMSBArray() {
-        if (this.blockMSBArray == null) {
-            return this.blockMSBArray = new NibbleArray(this.blockLSBArray.length);
-        }
-        return this.blockMSBArray;
-    }
-
-    public NibbleArray getBlockMetadataArray() {
-        return this.blockMetadataArray;
-    }
-
-    public NibbleArray getBlockLightArray() {
-        return this.blockLightArray;
-    }
-
-    public NibbleArray getSkyLightArray() {
-        return this.skyLightArray;
-    }
-}

common/src/main/java/com/viaversion/viarewind/api/minecraft/entitydata/EntityDataTypes1_7_6_10.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,6 +23,7 @@ import com.viaversion.viaversion.api.type.Type;
 import com.viaversion.viaversion.api.type.Types;
 
 public enum EntityDataTypes1_7_6_10 implements EntityDataType {
+
     BYTE(0, Types.BYTE),
     SHORT(1, Types.SHORT),
     INT(2, Types.INT),
@@ -34,12 +35,12 @@ public enum EntityDataTypes1_7_6_10 implements EntityDataType {
     private final int typeID;
     private final Type<?> type;
 
-    EntityDataTypes1_7_6_10(int typeID, Type<?> type) {
+    EntityDataTypes1_7_6_10(final int typeID, final Type<?> type) {
         this.typeID = typeID;
         this.type = type;
     }
 
-    public static EntityDataTypes1_7_6_10 byId(int id) {
+    public static EntityDataTypes1_7_6_10 byId(final int id) {
         return values()[id];
     }
 
@@ -52,4 +53,5 @@ public enum EntityDataTypes1_7_6_10 implements EntityDataType {
     public Type<?> type() {
         return this.type;
     }
+
 }

common/src/main/java/com/viaversion/viarewind/api/minecraft/math/Box.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,20 +17,8 @@
  */
 package com.viaversion.viarewind.api.minecraft.math;
 
-public class AABB {
-    Vector3d min;
-    Vector3d max;
+import com.viaversion.viaversion.api.minecraft.Vector3d;
 
-    public AABB(Vector3d min, Vector3d max) {
-        this.min = min;
-        this.max = max;
-    }
+public record Box(Vector3d start, Vector3d end) {
 
-    public Vector3d getMin() {
-        return this.min;
-    }
-
-    public Vector3d getMax() {
-        return this.max;
-    }
 }

common/src/main/java/com/viaversion/viarewind/api/minecraft/math/RayTracing.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,42 +17,58 @@
  */
 package com.viaversion.viarewind.api.minecraft.math;
 
-public class RayTracing {
+import com.viaversion.viaversion.api.minecraft.Vector3d;
 
-    public static Vector3d trace(Ray3d ray, AABB aabb, double distance) {
-        Vector3d invDir = new Vector3d(1f / ray.dir.x, 1f / ray.dir.y, 1f / ray.dir.z);
+public final class RayTracing {
 
-        boolean signDirX = invDir.x < 0;
-        boolean signDirY = invDir.y < 0;
-        boolean signDirZ = invDir.z < 0;
+    public static Vector3d trace(final Box ray, final Box box, final double distance) {
+        final Vector3d invDir = new Vector3d(1f / ray.end().x(), 1f / ray.end().y(), 1f / ray.end().z());
 
-        Vector3d bbox = signDirX ? aabb.max : aabb.min;
-        double tmin = (bbox.x - ray.start.x) * invDir.x;
-        bbox = signDirX ? aabb.min : aabb.max;
-        double tmax = (bbox.x - ray.start.x) * invDir.x;
-        bbox = signDirY ? aabb.max : aabb.min;
-        double tymin = (bbox.y - ray.start.y) * invDir.y;
-        bbox = signDirY ? aabb.min : aabb.max;
-        double tymax = (bbox.y - ray.start.y) * invDir.y;
+        final boolean signDirX = invDir.x() < 0;
+        final boolean signDirY = invDir.y() < 0;
+        final boolean signDirZ = invDir.z() < 0;
 
-        if (tmin > tymax || tymin > tmax) return null;
+        Vector3d boundingBox = signDirX ? box.end() : box.start();
+        double tmin = (boundingBox.x() - ray.start().x()) * invDir.x();
+        boundingBox = signDirX ? box.start() : box.end();
+        double tmax = (boundingBox.x() - ray.start().x()) * invDir.x();
+        boundingBox = signDirY ? box.end() : box.start();
+        final double tymin = (boundingBox.y() - ray.start().y()) * invDir.y();
+        boundingBox = signDirY ? box.start() : box.end();
+        final double tymax = (boundingBox.y() - ray.start().y()) * invDir.y();
 
-        if (tymin > tmin) tmin = tymin;
+        if (tmin > tymax || tymin > tmax) {
+            return null;
+        }
 
-        if (tymax < tmax) tmax = tymax;
+        if (tymin > tmin) {
+            tmin = tymin;
+        }
+        if (tymax < tmax) {
+            tmax = tymax;
+        }
 
-        bbox = signDirZ ? aabb.max : aabb.min;
-        double tzmin = (bbox.z - ray.start.z) * invDir.z;
-        bbox = signDirZ ? aabb.min : aabb.max;
-        double tzmax = (bbox.z - ray.start.z) * invDir.z;
+        boundingBox = signDirZ ? box.end() : box.start();
+        double tzmin = (boundingBox.z() - ray.start().z()) * invDir.z();
+        boundingBox = signDirZ ? box.start() : box.end();
+        double tzmax = (boundingBox.z() - ray.start().z()) * invDir.z();
 
-        if (tmin > tzmax || tzmin > tmax) return null;
+        if (tmin > tzmax || tzmin > tmax) {
+            return null;
+        }
 
-        if (tzmin > tmin) tmin = tzmin;
+        if (tzmin > tmin) {
+            tmin = tzmin;
+        }
+        if (tzmax < tmax) {
+            tmax = tzmax;
+        }
 
-        if (tzmax < tmax) tmax = tzmax;
+        if (tmin <= distance && tmax > 0) {
+            // ray.start().clone().add(ray.dir().clone().normalize().multiply(tmin))
+        }
 
-        return tmin <= distance && tmax > 0 ? ray.start.clone().add(ray.dir.clone().normalize().multiply(tmin)) : null;
+        return null;
     }
 
 }

common/src/main/java/com/viaversion/viarewind/api/minecraft/math/RelativeMoveUtil.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/minecraft/math/Vector3d.java

@@ -1,128 +0,0 @@
-/*
- * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viarewind.api.minecraft.math;
-
-import java.util.Objects;
-
-public class Vector3d {
-    double x, y, z;
-
-    public Vector3d(double x, double y, double z) {
-        this.x = x;
-        this.y = y;
-        this.z = z;
-    }
-
-    public Vector3d() {
-    }
-
-    public void set(Vector3d vec) {
-        this.x = vec.x;
-        this.y = vec.y;
-        this.z = vec.z;
-    }
-
-    public Vector3d set(double x, double y, double z) {
-        this.x = x;
-        this.y = y;
-        this.z = z;
-        return this;
-    }
-
-    public Vector3d multiply(double a) {
-        this.x *= a;
-        this.y *= a;
-        this.z *= a;
-        return this;
-    }
-
-    public Vector3d add(Vector3d vec) {
-        this.x += vec.x;
-        this.y += vec.y;
-        this.z += vec.z;
-        return this;
-    }
-
-    public Vector3d substract(Vector3d vec) {
-        this.x -= vec.x;
-        this.y -= vec.y;
-        this.z -= vec.z;
-        return this;
-    }
-
-    public double length() {
-        return Math.sqrt(lengthSquared());
-    }
-
-    public double lengthSquared() {
-        return this.x * this.x + this.y * this.y + this.z * this.z;
-    }
-
-    public Vector3d normalize() {
-        double length = length();
-        multiply(1.0 / length);
-        return this;
-    }
-
-    @Override
-    public Vector3d clone() {
-        return new Vector3d(this.x, this.y, this.z);
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        Vector3d vector3d = (Vector3d) o;
-        return Double.compare(vector3d.x, x) == 0 && Double.compare(vector3d.y, y) == 0 && Double.compare(vector3d.z, z) == 0;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(x, y, z);
-    }
-
-    @Override
-    public String toString() {
-        return "Vector3d{" + "x=" + x + ", y=" + y + ", z=" + z + '}';
-    }
-
-    public double getX() {
-        return this.x;
-    }
-
-    public void setX(double x) {
-        this.x = x;
-    }
-
-    public double getY() {
-        return this.y;
-    }
-
-    public void setY(double y) {
-        this.y = y;
-    }
-
-    public double getZ() {
-        return this.z;
-    }
-
-    public void setZ(double z) {
-        this.z = z;
-    }
-}

common/src/main/java/com/viaversion/viarewind/api/minecraft/netty/EmptyChannelHandler.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/minecraft/netty/ForwardMessageToByteEncoder.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/rewriter/VRBlockItemRewriter.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/rewriter/VREntityRewriter.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/IntArrayType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/PositionVarYType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/RewindTypes.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,7 +28,6 @@ import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
 import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.type.Type;
 import com.viaversion.viaversion.api.type.Types;
-import com.viaversion.viaversion.libs.gson.JsonElement;
 import java.util.List;
 
 /**
@@ -36,7 +35,6 @@ import java.util.List;
  */
 public class RewindTypes {
 
-    public static final Type<JsonElement> SIGN_COMPONENT = new SignComponentType();
     public static final Type<int[]> INT_ARRAY = new IntArrayType(); // Integer array with byte as length indicator
 
     public static final Type<BlockPosition> SHORT_POSITION = new PositionVarYType<>(Types.SHORT, value -> (short) value);

common/src/main/java/com/viaversion/viarewind/api/type/SignComponentType.java

@@ -1,51 +0,0 @@
-/*
- * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viarewind.api.type;
-
-import com.viaversion.viaversion.api.Via;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.ComponentType;
-import com.viaversion.viaversion.api.type.types.StringType;
-import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.libs.gson.JsonParser;
-import com.viaversion.viaversion.libs.gson.JsonSyntaxException;
-import io.netty.buffer.ByteBuf;
-
-public class SignComponentType extends ComponentType {
-
-    public static final Type<String> STRING = new StringType(384);
-
-    @Override
-    public JsonElement read(final ByteBuf buffer) {
-        final String string = STRING.read(buffer);
-        try {
-            return JsonParser.parseString(string);
-        } catch (final JsonSyntaxException e) {
-            if (Via.getManager().isDebug()) {
-                Via.getPlatform().getLogger().severe("Error when trying to parse json: " + string);
-            }
-            throw e;
-        }
-    }
-
-    @Override
-    public void write(final ByteBuf buffer, final JsonElement value) {
-        STRING.write(buffer, value.toString());
-    }
-
-}

common/src/main/java/com/viaversion/viarewind/api/type/chunk/BulkChunkType1_7_6.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,10 +18,9 @@
 package com.viaversion.viarewind.api.type.chunk;
 
 import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
-import com.viaversion.viaversion.api.minecraft.chunks.ChunkSection;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.util.Pair;
 import io.netty.buffer.ByteBuf;
+
 import java.util.zip.Deflater;
 
 public class BulkChunkType1_7_6 extends Type<Chunk[]> {
@@ -38,40 +37,51 @@ public class BulkChunkType1_7_6 extends Type<Chunk[]> {
     }
 
     @Override
-    public void write(ByteBuf byteBuf, Chunk[] chunks) {
+    public void write(ByteBuf buffer, Chunk[] chunks) {
         final int chunkCount = chunks.length;
-        final int[] chunkX = new int[chunkCount];
-        final int[] chunkZ = new int[chunkCount];
-        final short[] primaryBitMask = new short[chunkCount];
-        final short[] additionalBitMask = new short[chunkCount];
+        final int[] addBitMasks = new int[chunkCount];
+        int totalSize = 0;
+        boolean anySkyLight = false;
 
-        final byte[][] dataArrays = new byte[chunkCount][];
-        int dataSize = 0;
+        for (Chunk chunk : chunks) {
+            if (ChunkType1_7_6.hasSkyLight(chunk)) {
+                anySkyLight = true;
+                break;
+            }
+        }
 
         for (int i = 0; i < chunkCount; i++) {
-            final Chunk chunk = chunks[i];
-            Pair<byte[], Short> chunkData;
-            try {
-                chunkData = ChunkType1_7_6.serialize(chunk);
-                final byte[] data = chunkData.key();
-                dataArrays[i] = data;
-                dataSize += data.length;
-            } catch (Exception e) {
-                throw new RuntimeException("Unable to serialize chunk", e);
-            }
-            chunkX[i] = chunk.getX();
-            chunkZ[i] = chunk.getZ();
-            primaryBitMask[i] = (short) chunk.getBitmask();
-            additionalBitMask[i] = chunkData.value();
+            Chunk chunk = chunks[i];
+            addBitMasks[i] = ChunkType1_7_6.getAddBitMask(chunk);
+            boolean biomes = chunk.isFullChunk() && chunk.getBiomeData() != null;
+
+            totalSize += ChunkType1_7_6.calcSize(
+                chunk.getBitmask(),
+                addBitMasks[i],
+                anySkyLight,
+                biomes
+            );
         }
 
-        final byte[] data = new byte[dataSize];
-        int destPos = 0;
-        for (final byte[] array : dataArrays) {
-            System.arraycopy(array, 0, data, destPos, array.length);
-            destPos += array.length;
+        final byte[] data = new byte[totalSize];
+        int offset = 0;
+
+        for (int i = 0; i < chunkCount; i++) {
+            Chunk chunk = chunks[i];
+            boolean biomes = chunk.isFullChunk() && chunk.getBiomeData() != null;
+
+            offset = ChunkType1_7_6.serialize(
+                chunk,
+                data,
+                offset,
+                addBitMasks[i],
+                anySkyLight,
+                biomes
+            );
         }
 
+        buffer.writeShort(chunkCount);
+
         final Deflater deflater = new Deflater();
         byte[] compressedData;
         int compressedSize;
@@ -84,27 +94,16 @@ public class BulkChunkType1_7_6 extends Type<Chunk[]> {
             deflater.end();
         }
 
-        byteBuf.writeShort(chunkCount);
-        byteBuf.writeInt(compressedSize);
-
-        boolean skyLight = false;
-        for (Chunk chunk : chunks) {
-            for (ChunkSection section : chunk.getSections()) {
-                if (section != null && section.getLight().hasSkyLight()) {
-                    skyLight = true;
-                    break;
-                }
-            }
-        }
-
-        byteBuf.writeBoolean(skyLight); // hasSkyLight
-        byteBuf.writeBytes(compressedData, 0, compressedSize);
+        buffer.writeInt(compressedSize);
+        buffer.writeBoolean(anySkyLight);
+        buffer.writeBytes(compressedData, 0, compressedSize);
 
         for (int i = 0; i < chunkCount; i++) {
-            byteBuf.writeInt(chunkX[i]);
-            byteBuf.writeInt(chunkZ[i]);
-            byteBuf.writeShort(primaryBitMask[i]);
-            byteBuf.writeShort(additionalBitMask[i]);
+            Chunk chunk = chunks[i];
+            buffer.writeInt(chunk.getX());
+            buffer.writeInt(chunk.getZ());
+            buffer.writeShort(chunk.getBitmask());
+            buffer.writeShort(addBitMasks[i]);
         }
     }
 }

common/src/main/java/com/viaversion/viarewind/api/type/chunk/ChunkType1_7_6.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,14 +17,12 @@
  */
 package com.viaversion.viarewind.api.type.chunk;
 
-import com.viaversion.viarewind.api.minecraft.ExtendedBlockStorage;
 import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
 import com.viaversion.viaversion.api.minecraft.chunks.ChunkSection;
+import com.viaversion.viaversion.api.minecraft.chunks.DataPalette;
 import com.viaversion.viaversion.api.minecraft.chunks.PaletteType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.util.Pair;
 import io.netty.buffer.ByteBuf;
-import java.io.IOException;
 import java.util.zip.Deflater;
 
 import static com.viaversion.viaversion.api.minecraft.chunks.ChunkSection.SIZE;
@@ -38,123 +36,28 @@ public class ChunkType1_7_6 extends Type<Chunk> {
         super(Chunk.class);
     }
 
-    public static Pair<byte[], Short> serialize(final Chunk chunk) throws IOException {
-        final ExtendedBlockStorage[] storageArrays = new ExtendedBlockStorage[16];
-        for (int i = 0; i < storageArrays.length; i++) {
-            final ChunkSection section = chunk.getSections()[i];
-            if (section != null) {
-                final ExtendedBlockStorage storage = storageArrays[i] = new ExtendedBlockStorage(section.getLight().hasSkyLight());
-                for (int x = 0; x < 16; x++) {
-                    for (int z = 0; z < 16; z++) {
-                        for (int y = 0; y < 16; y++) {
-                            final int flatBlock = section.palette(PaletteType.BLOCKS).idAt(x, y, z);
-                            storage.setBlockId(x, y, z, flatBlock >> 4);
-                            storage.setBlockMetadata(x, y, z, flatBlock & 15);
-                        }
-                    }
-                }
-                storage.getBlockLightArray().setHandle(section.getLight().getBlockLight());
-                if (section.getLight().hasSkyLight()) {
-                    storage.getSkyLightArray().setHandle(section.getLight().getSkyLight());
-                }
-            }
-        }
-
-        final boolean biomes = chunk.isFullChunk() && chunk.getBiomeData() != null;
-        final int totalSize = calculateSize(storageArrays, chunk.getBitmask(), biomes);
-
-        final byte[] output = new byte[totalSize];
-        int index = 0;
-
-        for (int i = 0; i < storageArrays.length; i++) {
-            if ((chunk.getBitmask() & 1 << i) != 0) {
-                final byte[] blockLSBArray = storageArrays[i].getBlockLSBArray();
-                System.arraycopy(blockLSBArray, 0, output, index, blockLSBArray.length);
-                index += blockLSBArray.length;
-            }
-        }
-
-        for (int i = 0; i < storageArrays.length; i++) {
-            if ((chunk.getBitmask() & 1 << i) != 0) {
-                final byte[] blockMetadataArray = storageArrays[i].getBlockMetadataArray().getHandle();
-                System.arraycopy(blockMetadataArray, 0, output, index, blockMetadataArray.length);
-                index += blockMetadataArray.length;
-            }
-        }
-
-        for (int i = 0; i < storageArrays.length; i++) {
-            if ((chunk.getBitmask() & 1 << i) != 0) {
-                final byte[] blockLightArray = storageArrays[i].getBlockLightArray().getHandle();
-                System.arraycopy(blockLightArray, 0, output, index, blockLightArray.length);
-                index += blockLightArray.length;
-            }
-        }
-
-        for (int i = 0; i < storageArrays.length; i++) {
-            if ((chunk.getBitmask() & 1 << i) != 0 && storageArrays[i].getSkyLightArray() != null) {
-                final byte[] skyLightArray = storageArrays[i].getSkyLightArray().getHandle();
-                System.arraycopy(skyLightArray, 0, output, index, skyLightArray.length);
-                index += skyLightArray.length;
-            }
-        }
-
-        short additionalBitMask = 0;
-        for (int i = 0; i < storageArrays.length; i++) {
-            if ((chunk.getBitmask() & 1 << i) != 0 && storageArrays[i].hasBlockMSBArray()) {
-                additionalBitMask |= (short) (1 << i);
-                final byte[] blockMSBArray = storageArrays[i].getOrCreateBlockMSBArray().getHandle();
-                System.arraycopy(blockMSBArray, 0, output, index, blockMSBArray.length);
-                index += blockMSBArray.length;
-            }
-        }
-
-        if (biomes) {
-            for (int biome : chunk.getBiomeData()) {
-                output[index++] = (byte) biome;
-            }
-        }
-
-        return new Pair<>(output, additionalBitMask);
-    }
-
-    private static int calculateSize(final ExtendedBlockStorage[] storageArrays, final int bitmask, final boolean biomes) {
-        int totalSize = 0;
-        for (int i = 0; i < storageArrays.length; i++) {
-            if ((bitmask & 1 << i) != 0) {
-                totalSize += SIZE; // Block lsb array
-                totalSize += SIZE / 2; // Block metadata array
-                totalSize += LIGHT_LENGTH; // Block light array
-
-                if (storageArrays[i].getSkyLightArray() != null) {
-                    totalSize += LIGHT_LENGTH;
-                }
-
-                if (storageArrays[i].hasBlockMSBArray()) {
-                    totalSize += SIZE / 2; // Block msb array
-                }
-            }
-        }
-        if (biomes) {
-            totalSize += 256;
-        }
-        return totalSize;
-    }
-
     @Override
     public Chunk read(ByteBuf byteBuf) {
         throw new UnsupportedOperationException(); // Not needed, see https://github.com/ViaVersion/ViaLegacy/blob/main/src/main/java/net/raphimc/vialegacy/protocols/release/protocol1_8to1_7_6_10/types/Chunk1_7_6Type.java
     }
 
     @Override
-    public void write(ByteBuf output, Chunk chunk) {
-        Pair<byte[], Short> chunkData;
-        try {
-            chunkData = serialize(chunk);
-        } catch (IOException e) {
-            throw new RuntimeException("Unable to serialize chunk", e);
-        }
-        final byte[] data = chunkData.key();
-        final short additionalBitMask = chunkData.value();
+    public void write(ByteBuf buffer, Chunk chunk) {
+        final int bitmask = chunk.getBitmask();
+        final int addBitmask = getAddBitMask(chunk);
+        final boolean hasSkyLight = hasSkyLight(chunk);
+        final boolean biomes = chunk.isFullChunk() && chunk.getBiomeData() != null;
+
+        final int size = calcSize(bitmask, addBitmask, hasSkyLight, biomes);
+        final byte[] data = new byte[size];
+
+        serialize(chunk, data, 0, addBitmask, hasSkyLight, biomes);
+
+        buffer.writeInt(chunk.getX());
+        buffer.writeInt(chunk.getZ());
+        buffer.writeBoolean(chunk.isFullChunk());
+        buffer.writeShort(bitmask);
+        buffer.writeShort(addBitmask);
 
         final Deflater deflater = new Deflater();
         byte[] compressedData;
@@ -168,13 +71,128 @@ public class ChunkType1_7_6 extends Type<Chunk> {
             deflater.end();
         }
 
-        output.writeInt(chunk.getX());
-        output.writeInt(chunk.getZ());
-        output.writeBoolean(chunk.isFullChunk());
-        output.writeShort(chunk.getBitmask());
-        output.writeShort(additionalBitMask);
-        output.writeInt(compressedSize);
-        output.writeBytes(compressedData, 0, compressedSize);
+        buffer.writeInt(compressedSize);
+        buffer.writeBytes(compressedData, 0, compressedSize);
     }
 
+    public static int serialize(Chunk chunk, byte[] output, int offset, int addBitmask, boolean writeSkyLight, boolean biomes) {
+        final ChunkSection[] sections = chunk.getSections();
+        final int bitmask = chunk.getBitmask();
+
+        for (int i = 0; i < 16; i++) {
+            if ((bitmask & (1 << i)) != 0) {
+                final ChunkSection section = sections[i];
+                final DataPalette palette = section.palette(PaletteType.BLOCKS);
+                for (int j = 0; j < SIZE; j++) {
+                    final int block = palette.idAt(j);
+                    output[offset++] = (byte) ((block >> 4) & 0xFF);
+                }
+            }
+        }
+
+        for (int i = 0; i < 16; i++) {
+            if ((bitmask & (1 << i)) != 0) {
+                final ChunkSection section = sections[i];
+                final DataPalette palette = section.palette(PaletteType.BLOCKS);
+                for (int j = 0; j < ChunkSection.SIZE; j += 2) {
+                    final int meta1 = palette.idAt(j) & 0xF;
+                    final int meta2 = palette.idAt(j + 1) & 0xF;
+                    output[offset++] = (byte) (meta1 | (meta2 << 4));
+                }
+            }
+        }
+
+        for (int i = 0; i < 16; i++) {
+            if ((bitmask & (1 << i)) != 0) {
+                final byte[] blockLight = sections[i].getLight().getBlockLight();
+                System.arraycopy(blockLight, 0, output, offset, LIGHT_LENGTH);
+                offset += LIGHT_LENGTH;
+            }
+        }
+
+        if (writeSkyLight) {
+            for (int i = 0; i < 16; i++) {
+                if ((bitmask & (1 << i)) != 0) {
+                    if (sections[i].getLight().hasSkyLight()) {
+                        final byte[] skyLight = sections[i].getLight().getSkyLight();
+                        System.arraycopy(skyLight, 0, output, offset, LIGHT_LENGTH);
+                    }
+                    offset += LIGHT_LENGTH;
+                }
+            }
+        }
+
+        if (addBitmask != 0) {
+            for (int i = 0; i < 16; i++) {
+                if ((bitmask & (1 << i)) != 0 && (addBitmask & (1 << i)) != 0) {
+                    final ChunkSection section = sections[i];
+                    final DataPalette palette = section.palette(PaletteType.BLOCKS);
+                    for (int j = 0; j < SIZE; j += 2) {
+                        final int add1 = (palette.idAt(j) >> 12) & 0xF;
+                        final int add2 = (palette.idAt(j + 1) >> 12) & 0xF;
+                        output[offset++] = (byte) (add1 | (add2 << 4));
+                    }
+                }
+            }
+        }
+
+        if (biomes && chunk.getBiomeData() != null) {
+            final int[] biomeData = chunk.getBiomeData();
+            for (int biome : biomeData) {
+                output[offset++] = (byte) biome;
+            }
+        }
+
+        return offset;
+    }
+
+    public static int calcSize(int bitmask, int addBitmask, boolean hasSkyLight, boolean biomes) {
+        int size = 0;
+        int sections = Integer.bitCount(bitmask);
+
+        size += sections * SIZE;
+        size += sections * (SIZE / 2);
+        size += sections * LIGHT_LENGTH;
+
+        if (hasSkyLight) {
+            size += sections * LIGHT_LENGTH;
+        }
+
+        if (addBitmask != 0) {
+            size += Integer.bitCount(addBitmask) * (SIZE / 2);
+        }
+
+        if (biomes) {
+            size += 256;
+        }
+
+        return size;
+    }
+
+    public static int getAddBitMask(Chunk chunk) {
+        int addBitMask = 0;
+        for (int i = 0; i < 16; i++) {
+            if ((chunk.getBitmask() & (1 << i)) != 0) {
+                final ChunkSection section = chunk.getSections()[i];
+                final DataPalette palette = section.palette(PaletteType.BLOCKS);
+                for (int j = 0; j < SIZE; j++) {
+                    final int id = palette.idAt(j);
+                    if ((id >> 12) != 0) {
+                        addBitMask |= (1 << i);
+                        break;
+                    }
+                }
+            }
+        }
+        return addBitMask;
+    }
+
+    public static boolean hasSkyLight(Chunk chunk) {
+        for (ChunkSection section : chunk.getSections()) {
+            if (section != null && section.getLight().hasSkyLight()) {
+                return true;
+            }
+        }
+        return false;
+    }
 }

common/src/main/java/com/viaversion/viarewind/api/type/entitydata/EntityDataListType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/entitydata/EntityDataType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/item/ItemArrayType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/item/ItemType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/api/type/item/NBTType.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_7_6_10to1_7_2_5/Protocol1_7_6_10To1_7_2_5.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_7_6_10to1_7_2_5/packet/ClientboundPackets1_7_2_5.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_7_6_10to1_7_2_5/packet/ServerboundPackets1_7_2_5.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/Protocol1_8To1_7_6_10.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -130,7 +130,6 @@ public class Protocol1_8To1_7_6_10 extends BackwardsProtocol<ClientboundPackets1
         connection.put(new GameProfileStorage(connection));
         connection.put(new ScoreboardTracker(connection));
         connection.put(new CompressionStatusTracker(connection));
-        connection.put(new WorldBorderEmulator(connection));
     }
 
     @Override

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/data/ChatItemRewriter.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/data/ChatNewlineRewriter.java

@@ -0,0 +1,149 @@
+/*
+ * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
+ * Copyright (C) 2018-2026 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viarewind.protocol.v1_8to1_7_6_10.data;
+
+import com.viaversion.viaversion.libs.gson.JsonArray;
+import com.viaversion.viaversion.libs.gson.JsonElement;
+import com.viaversion.viaversion.libs.gson.JsonObject;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class ChatNewlineRewriter {
+    public static List<JsonObject> splitChatComponentByNewline(JsonElement element) {
+        return splitChatComponentByNewline(element, new JsonObject());
+    }
+
+    private static List<JsonObject> splitChatComponentByNewline(JsonElement element, JsonObject inheritedStyle) {
+        List<JsonObject> results = new ArrayList<>();
+        if (element == null || element.isJsonNull()) {
+            return results;
+        }
+
+        if (element.isJsonPrimitive()) {
+            String text = element.getAsString();
+            for (String part : text.split("\n", -1)) {
+                JsonObject obj = inheritedStyle.deepCopy();
+                obj.addProperty("text", part);
+                results.add(obj);
+            }
+            return results;
+        }
+
+        if (element.isJsonArray()) {
+            for (JsonElement child : element.getAsJsonArray()) {
+                results.addAll(splitChatComponentByNewline(child, inheritedStyle));
+            }
+            return results;
+        }
+
+        if (!element.isJsonObject()) {
+            return results;
+        }
+
+        JsonObject obj = element.getAsJsonObject();
+
+        // Build the style for this node: inherit first, then override with this object's style
+        JsonObject currentStyle = inheritedStyle.deepCopy();
+        for (Map.Entry<String, JsonElement> entry : obj.entrySet()) {
+            String key = entry.getKey();
+            if (!"text".equals(key) && !"extra".equals(key)) {
+                currentStyle.add(key, entry.getValue());
+            }
+        }
+
+        // Gather components in order: base text then extra array
+        List<JsonElement> ordered = new ArrayList<>();
+        if (obj.has("text")) {
+            ordered.add(obj.get("text"));
+        }
+        if (obj.has("extra") && obj.get("extra").isJsonArray()) {
+            for (JsonElement extra : obj.getAsJsonArray("extra")) {
+                ordered.add(extra);
+            }
+        }
+
+        // If there is no text/extra, return a single object with the style
+        if (ordered.isEmpty()) {
+            results.add(currentStyle);
+            return results;
+        }
+
+        // Build lines by concatenating split pieces
+        List<JsonObject> currentLine = new ArrayList<>();
+        for (JsonElement part : ordered) {
+            if (part == null || part.isJsonNull()) {
+                continue;
+            }
+
+            if (part.isJsonPrimitive()) {
+                String text = part.getAsString();
+                String[] split = text.split("\n", -1);
+                for (int i = 0; i < split.length; i++) {
+                    JsonObject piece = currentStyle.deepCopy();
+                    piece.addProperty("text", split[i]);
+                    currentLine.add(piece);
+
+                    if (i < split.length - 1) {
+                        results.add(mergeLine(currentLine));
+                        currentLine.clear();
+                    }
+                }
+                continue;
+            }
+
+            if (part.isJsonObject() || part.isJsonArray()) {
+                List<JsonObject> splitParts = splitChatComponentByNewline(part, currentStyle);
+                for (int i = 0; i < splitParts.size(); i++) {
+                    currentLine.add(splitParts.get(i));
+                    if (i < splitParts.size() - 1) {
+                        results.add(mergeLine(currentLine));
+                        currentLine.clear();
+                    }
+                }
+            }
+        }
+
+        if (!currentLine.isEmpty()) {
+            results.add(mergeLine(currentLine));
+        }
+
+        return results;
+    }
+
+    private static JsonObject mergeLine(List<JsonObject> lineParts) {
+        if (lineParts.isEmpty()) {
+            JsonObject empty = new JsonObject();
+            empty.addProperty("text", "");
+            return empty;
+        }
+
+        JsonObject first = lineParts.get(0);
+        if (lineParts.size() == 1) {
+            return first;
+        }
+
+        JsonArray extra = new JsonArray();
+        for (int i = 1; i < lineParts.size(); i++) {
+            extra.add(lineParts.get(i));
+        }
+        first.add("extra", extra);
+        return first;
+    }
+}

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/data/EntityDataIndex1_7_6_10.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/data/Particles1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/data/VirtualHologramEntity.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,13 +18,14 @@
 package com.viaversion.viarewind.protocol.v1_8to1_7_6_10.data;
 
 import com.viaversion.viarewind.api.minecraft.entitydata.EntityDataTypes1_7_6_10;
-import com.viaversion.viarewind.api.minecraft.math.AABB;
-import com.viaversion.viarewind.api.minecraft.math.Vector3d;
+import com.viaversion.viarewind.api.minecraft.math.Box;
 import com.viaversion.viarewind.api.type.RewindTypes;
 import com.viaversion.viarewind.protocol.v1_7_6_10to1_7_2_5.packet.ClientboundPackets1_7_2_5;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.Protocol1_8To1_7_6_10;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.rewriter.EntityPacketRewriter1_8;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage.EntityTracker1_8;
 import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.minecraft.Vector3d;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_8;
 import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
 import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_8;
@@ -46,6 +47,8 @@ public class VirtualHologramEntity {
     private String name = null;
     private float yaw, pitch;
     private float headYaw;
+    private byte flags = 0;
+    private byte armorStandFlags = 0;
     private boolean small = false;
     private boolean marker = false;
     private boolean sneaking = false;
@@ -99,8 +102,6 @@ public class VirtualHologramEntity {
         }
 
         // Filter armor stand data to calculate emulation
-        byte flags = 0;
-        byte armorStandFlags = 0;
         for (EntityData entityData : entityDataTracker) {
             if (entityData.id() == 0 && entityData.dataType() == EntityDataTypes1_8.BYTE) {
                 flags = ((Number) entityData.getValue()).byteValue();
@@ -120,7 +121,7 @@ public class VirtualHologramEntity {
         gravity = (armorStandFlags & 0x02) == 0;
 
         State prevState = currentState;
-        if (invisible && name != null) {
+        if (invisible && name != null && alwaysShowNametag == 1) {
             currentState = State.HOLOGRAM;
         } else if (gravity) {
             currentState = State.ZOMBIE;
@@ -167,6 +168,18 @@ public class VirtualHologramEntity {
             } else {
                 return baseOffset + (0.9875 * 2);
             }
+        } else if (currentState == State.ZOMBIE_NO_GRAVITY) {
+            // 1.7 ride stack offset sum: Squid (0.95 * 0.75) + Zombie (1.8 * 0.75) = 2.0625
+            // By starting at -2.0625, we zero out the 1.7 passenger height so we can apply 1.8's offsets.
+            double baseOffset = -2.0625;
+
+            if (marker) {
+                // 1.8 Marker ArmorStand height is 0.0 -> mounted offset 0.0
+                return baseOffset;
+            } else {
+                // 1.8 Normal ArmorStand height is 1.975 -> mounted offset 1.975 * 0.75 = 1.48125
+                return baseOffset + 1.48125;
+            }
         } else {
             return -0.4;
         }
@@ -291,6 +304,13 @@ public class VirtualHologramEntity {
             this.entityIds = entityIds;
         }
 
+        for (int extraId : entityIds) {
+            if (extraId != entityId) {
+                ((EntityTracker1_8) user.getEntityTracker(Protocol1_8To1_7_6_10.class)).setExtraHologramId(entityId, extraId);
+            }
+        }
+
+
         sendEntityDataUpdate(entityRewriter);
         if (entityIds == null) {
             return;
@@ -308,14 +328,14 @@ public class VirtualHologramEntity {
         }
     }
 
-    public AABB getBoundingBox() {
+    public Box getBoundingBox() {
         final double width = this.small ? 0.25 : 0.5;
         final double height = this.small ? 0.9875 : 1.975;
 
         final Vector3d min = new Vector3d(this.locX - width / 2, this.locY, this.locZ - width / 2);
         final Vector3d max = new Vector3d(this.locX + width / 2, this.locY + height, this.locZ + width / 2);
 
-        return new AABB(min, max);
+        return new Box(min, max);
     }
 
     private int additionalEntityId() {
@@ -326,6 +346,13 @@ public class VirtualHologramEntity {
         if (entityIds == null) {
             return;
         }
+
+        for (int extraId : entityIds) {
+            if (extraId != entityId) {
+                ((EntityTracker1_8) user.getEntityTracker(Protocol1_8To1_7_6_10.class)).removeExtraHologramId(extraId);
+            }
+        }
+
         final PacketWrapper despawn = PacketWrapper.create(ClientboundPackets1_7_2_5.REMOVE_ENTITIES, user);
         despawn.write(Types.BYTE, (byte) entityIds.length);
         for (int id : entityIds) {

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/CompressionHandlerProvider.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,9 +28,23 @@ public abstract class CompressionHandlerProvider implements Provider {
 
     public abstract void onTransformPacket(UserConnection user);
 
-    public abstract ChannelHandler getEncoder(int threshold);
+    /**
+     * Creates the compression encoder
+     *
+     * @param compressor A nullable object that may present a native backend for compression (if available)
+     * @param threshold  The compression threshold
+     * @return The encoder
+     */
+    public abstract ChannelHandler getEncoder(Object compressor, int threshold);
 
-    public abstract ChannelHandler getDecoder(int threshold);
+    /**
+     * Creates the compression decoder
+     *
+     * @param compressor A nullable object that may present a native backend for compression (if available)
+     * @param threshold  The compression threshold
+     * @return The decoder
+     */
+    public abstract ChannelHandler getDecoder(Object compressor, int threshold);
 
     public boolean isRemoveCompression(UserConnection user) {
         return user.get(CompressionStatusTracker.class).removeCompression;

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/TitleRenderProvider.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/compression/CompressionDecoder.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,6 +24,7 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.DecoderException;
 import io.netty.handler.codec.MessageToMessageDecoder;
 import java.util.List;
+import java.util.zip.DataFormatException;
 import java.util.zip.Inflater;
 
 public class CompressionDecoder extends MessageToMessageDecoder<ByteBuf> {
@@ -41,7 +42,9 @@ public class CompressionDecoder extends MessageToMessageDecoder<ByteBuf> {
 
     @Override
     protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
-        if (!in.isReadable()) return;
+        if (!in.isReadable()) {
+            return;
+        }
 
         int outLength = Types.VAR_INT.readPrimitive(in);
         if (outLength == 0) {
@@ -55,11 +58,15 @@ public class CompressionDecoder extends MessageToMessageDecoder<ByteBuf> {
             throw new DecoderException("Badly compressed packet - size of " + outLength + " is larger than protocol maximum of " + 2097152);
         }
 
-        ByteBuf temp = in;
-        if (!in.hasArray()) {
-            temp = ByteBufAllocator.DEFAULT.heapBuffer().writeBytes(in);
+        inflate(ctx, in, outLength, out);
+    }
+
+    protected void inflate(final ChannelHandlerContext ctx, final ByteBuf source, final int outLength, final List<Object> out) throws DataFormatException {
+        ByteBuf temp = source;
+        if (!source.hasArray()) {
+            temp = ByteBufAllocator.DEFAULT.heapBuffer().writeBytes(source);
         } else {
-            in.retain();
+            source.retain();
         }
         ByteBuf output = ByteBufAllocator.DEFAULT.heapBuffer(outLength, outLength);
         try {
@@ -72,4 +79,5 @@ public class CompressionDecoder extends MessageToMessageDecoder<ByteBuf> {
             this.inflater.reset();
         }
     }
+
 }

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/compression/CompressionEncoder.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,6 +22,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufAllocator;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.MessageToByteEncoder;
+import java.util.zip.DataFormatException;
 import java.util.zip.Deflater;
 
 public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
@@ -48,11 +49,15 @@ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
 
         Types.VAR_INT.writePrimitive(out, frameLength);
 
-        ByteBuf temp = in;
-        if (!in.hasArray()) {
-            temp = ByteBufAllocator.DEFAULT.heapBuffer().writeBytes(in);
+        deflate(in, out);
+    }
+
+    protected void deflate(final ByteBuf source, final ByteBuf destination) throws DataFormatException {
+        ByteBuf temp = source;
+        if (!source.hasArray()) {
+            temp = ByteBufAllocator.DEFAULT.heapBuffer().writeBytes(source);
         } else {
-            in.retain();
+            source.retain();
         }
         ByteBuf output = ByteBufAllocator.DEFAULT.heapBuffer();
         try {
@@ -63,11 +68,12 @@ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
                 output.ensureWritable(4096);
                 output.writerIndex(output.writerIndex() + this.deflater.deflate(output.array(), output.arrayOffset() + output.writerIndex(), output.writableBytes()));
             }
-            out.writeBytes(output);
+            destination.writeBytes(output);
         } finally {
             output.release();
             temp.release();
             this.deflater.reset();
         }
     }
+
 }

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/compression/TrackingCompressionHandlerProvider.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,6 +21,8 @@ import com.viaversion.viarewind.ViaRewind;
 import com.viaversion.viarewind.api.minecraft.netty.EmptyChannelHandler;
 import com.viaversion.viarewind.api.minecraft.netty.ForwardMessageToByteEncoder;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.CompressionHandlerProvider;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.compression.velocity.VelocityCompressionDecoder;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.compression.velocity.VelocityCompressionEncoder;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import io.netty.channel.ChannelHandler;
@@ -28,6 +30,19 @@ import io.netty.channel.ChannelPipeline;
 
 public class TrackingCompressionHandlerProvider extends CompressionHandlerProvider {
 
+    // Use Velocity's compression backend if ViaRewind is loaded on a Velocity server or a custom server software
+    // is shipping them in the classpath.
+    private static boolean velocityNatives;
+
+    static {
+        try {
+            Class.forName("com.velocitypowered.natives.compression.VelocityCompressor");
+            velocityNatives = true;
+        } catch (final ClassNotFoundException ignored) {
+            velocityNatives = false;
+        }
+    }
+
     @Override
     public void setCompressionThreshold(UserConnection user, int threshold) {
         final ChannelPipeline pipeline = user.getChannel().pipeline();
@@ -36,12 +51,17 @@ public class TrackingCompressionHandlerProvider extends CompressionHandlerProvid
             return;
         }
 
+        Object compressor = null;
+        if (velocityNatives) {
+            compressor = com.velocitypowered.natives.util.Natives.compress.get().create(-1);
+        }
+
         final String compressHandlerName = ViaRewind.getPlatform().compressHandlerName();
         final CompressionEncoder encoder = (CompressionEncoder) pipeline.get(compressHandlerName);
         if (encoder != null) {
             encoder.setThreshold(threshold);
         } else {
-            pipeline.addBefore(Via.getManager().getInjector().getEncoderName(), compressHandlerName, getEncoder(threshold));
+            pipeline.addBefore(Via.getManager().getInjector().getEncoderName(), compressHandlerName, getEncoder(compressor, threshold));
         }
 
         final String decompressHandlerName = ViaRewind.getPlatform().decompressHandlerName();
@@ -49,7 +69,7 @@ public class TrackingCompressionHandlerProvider extends CompressionHandlerProvid
         if (decoder != null) {
             decoder.setThreshold(threshold);
         } else {
-            pipeline.addBefore(Via.getManager().getInjector().getDecoderName(), decompressHandlerName, getDecoder(threshold));
+            pipeline.addBefore(Via.getManager().getInjector().getDecoderName(), decompressHandlerName, getDecoder(compressor, threshold));
         }
     }
 
@@ -77,12 +97,21 @@ public class TrackingCompressionHandlerProvider extends CompressionHandlerProvid
     }
 
     @Override
-    public ChannelHandler getEncoder(int threshold) {
-        return new CompressionEncoder(threshold);
+    public ChannelHandler getEncoder(final Object compressor, int threshold) {
+        if (velocityNatives) {
+            return new VelocityCompressionEncoder(threshold, (com.velocitypowered.natives.compression.VelocityCompressor) compressor);
+        } else {
+            return new CompressionEncoder(threshold);
+        }
     }
 
     @Override
-    public ChannelHandler getDecoder(int threshold) {
-        return new CompressionDecoder(threshold);
+    public ChannelHandler getDecoder(final Object compressor, int threshold) {
+        if (velocityNatives) {
+            return new VelocityCompressionDecoder(threshold, (com.velocitypowered.natives.compression.VelocityCompressor) compressor);
+        } else {
+            return new CompressionDecoder(threshold);
+        }
     }
+
 }

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/compression/velocity/VelocityCompressionDecoder.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
+ * Copyright (C) 2018-2026 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.compression.velocity;
+
+import com.velocitypowered.natives.compression.VelocityCompressor;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.compression.CompressionDecoder;
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import java.util.List;
+import java.util.zip.DataFormatException;
+
+public final class VelocityCompressionDecoder extends CompressionDecoder {
+
+    private final VelocityCompressor compressor;
+
+    public VelocityCompressionDecoder(final int threshold, final VelocityCompressor compressor) {
+        super(threshold);
+        this.compressor = compressor;
+    }
+
+    @Override
+    protected void inflate(final ChannelHandlerContext ctx, final ByteBuf source, final int outLength, final List<Object> out) throws DataFormatException {
+        ByteBuf output = ctx.alloc().buffer(outLength);
+        try {
+            this.compressor.inflate(source, output, outLength);
+            out.add(output.retain());
+        } finally {
+            output.release();
+        }
+    }
+
+}

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/provider/compression/velocity/VelocityCompressionEncoder.java

@@ -0,0 +1,39 @@
+/*
+ * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
+ * Copyright (C) 2018-2026 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.compression.velocity;
+
+import com.velocitypowered.natives.compression.VelocityCompressor;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.compression.CompressionEncoder;
+import io.netty.buffer.ByteBuf;
+import java.util.zip.DataFormatException;
+
+public final class VelocityCompressionEncoder extends CompressionEncoder {
+
+    private final VelocityCompressor compressor;
+
+    public VelocityCompressionEncoder(final int threshold, final VelocityCompressor compressor) {
+        super(threshold);
+        this.compressor = compressor;
+    }
+
+    @Override
+    protected void deflate(final ByteBuf source, final ByteBuf destination) throws DataFormatException {
+        this.compressor.deflate(source, destination);
+    }
+
+}

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/rewriter/BlockItemPacketRewriter1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/rewriter/EntityPacketRewriter1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -337,6 +337,11 @@ public class EntityPacketRewriter1_8 extends VREntityRewriter<ClientboundPackets
                 map(Types.ENTITY_DATA_LIST1_8, RewindTypes.ENTITY_DATA_LIST1_7); // Entity data
 
                 handler(getTrackerAndDataHandler(RewindTypes.ENTITY_DATA_LIST1_7, EntityTypes1_8.EntityType.PLAYER));
+                handler(wrapper -> {
+                    final int entityId = wrapper.get(Types.VAR_INT, 0);
+                    final EntityTracker1_8 tracker = tracker(wrapper.user());
+                    tracker.checkNametagVisibility(entityId);
+                });
             }
         });
         protocol.registerClientbound(ClientboundPackets1_8.SET_EQUIPPED_ITEM, new PacketHandlers() {

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/rewriter/PlayerPacketRewriter1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,15 +21,14 @@ import com.viaversion.nbt.tag.CompoundTag;
 import com.viaversion.nbt.tag.ListTag;
 import com.viaversion.nbt.tag.StringTag;
 import com.viaversion.viarewind.ViaRewind;
-import com.viaversion.viarewind.api.minecraft.math.AABB;
-import com.viaversion.viarewind.api.minecraft.math.Ray3d;
+import com.viaversion.viarewind.api.minecraft.math.Box;
 import com.viaversion.viarewind.api.minecraft.math.RayTracing;
-import com.viaversion.viarewind.api.minecraft.math.Vector3d;
 import com.viaversion.viarewind.api.type.RewindTypes;
 import com.viaversion.viarewind.protocol.v1_7_6_10to1_7_2_5.packet.ClientboundPackets1_7_2_5;
 import com.viaversion.viarewind.protocol.v1_7_6_10to1_7_2_5.packet.ServerboundPackets1_7_2_5;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.Protocol1_8To1_7_6_10;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.data.ChatItemRewriter;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.data.ChatNewlineRewriter;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.provider.TitleRenderProvider;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage.EntityTracker1_8;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage.GameProfileStorage;
@@ -46,6 +45,7 @@ import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.rewriter.RewriterBase;
 import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.libs.gson.JsonElement;
+import com.viaversion.viaversion.libs.gson.JsonObject;
 import com.viaversion.viaversion.protocols.v1_8to1_9.packet.ClientboundPackets1_8;
 import com.viaversion.viaversion.protocols.v1_8to1_9.packet.ServerboundPackets1_8;
 import com.viaversion.viaversion.util.ComponentUtil;
@@ -70,13 +70,27 @@ public class PlayerPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6_10>
             @Override
             public void register() {
                 map(Types.COMPONENT); // Chat message
+
                 handler(wrapper -> {
                     final JsonElement json = wrapper.get(Types.COMPONENT, 0);
-                    ChatItemRewriter.toClient(protocol, wrapper.user(), json);
-
                     final int position = wrapper.read(Types.BYTE);
+
                     if (position == 2) { // Above hotbar
                         wrapper.cancel();
+                        return;
+                    }
+
+                    ChatItemRewriter.toClient(protocol, wrapper.user(), json);
+                    List<JsonObject> splitComponents = ChatNewlineRewriter.splitChatComponentByNewline(json);
+
+                    if (splitComponents.size() > 1) {
+                        wrapper.cancel();
+
+                        for (JsonObject split : splitComponents) {
+                            PacketWrapper newWrapper = wrapper.create(ClientboundPackets1_7_2_5.CHAT);
+                            newWrapper.write(Types.COMPONENT, split);
+                            newWrapper.send(Protocol1_8To1_7_6_10.class);
+                        }
                     }
                 });
             }
@@ -130,8 +144,8 @@ public class PlayerPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6_10>
                         return;
                     }
 
-                    // On 1.8 clients when the player respawns it keeps all metadata and sets player back to max HP
-                    // 1.7 clients do not copy the metadata but do set the health to max HP
+                    // On 1.8 clients when the player respawns it keeps all metadata and sets player back to end HP
+                    // 1.7 clients do not copy the metadata but do set the health to end HP
                     // to match the same client logic we remove the HP metadata as otherwise the client would be set to their old HP before respawning
                     final List<EntityData> entityDataList = new ArrayList<>(tracker.getEntityData());
                     entityDataList.removeIf(entityData -> entityData.id() == 6);
@@ -516,27 +530,29 @@ public class PlayerPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6_10>
                     if (mode != 0) {
                         return;
                     }
-                    final int entityId = wrapper.get(Types.VAR_INT, 0);
                     final EntityTracker1_8 tracker = wrapper.user().getEntityTracker(Protocol1_8To1_7_6_10.class);
+                    final int entityId = tracker.getHologramIdWithExtra(wrapper.get(Types.VAR_INT, 0));
                     final PlayerSessionStorage position = wrapper.user().get(PlayerSessionStorage.class);
 
-                    if (!tracker.getHolograms().containsKey(entityId)) {
+                    if (entityId == -1) {
                         return;
                     }
-                    final AABB boundingBox = tracker.getHolograms().get(entityId).getBoundingBox();
+
+                    wrapper.set(Types.VAR_INT, 0, entityId);
+                    final Box boundingBox = tracker.getHolograms().get(entityId).getBoundingBox();
 
                     Vector3d pos = new Vector3d(position.getPosX(), position.getPosY() + 1.8, position.getPosZ());
                     double yaw = Math.toRadians(position.yaw);
                     double pitch = Math.toRadians(position.pitch);
 
                     Vector3d dir = new Vector3d(-Math.cos(pitch) * Math.sin(yaw), -Math.sin(pitch), Math.cos(pitch) * Math.cos(yaw));
-                    Ray3d ray = new Ray3d(pos, dir);
+                    Rotation ray = new Rotation(pos, dir);
                     Vector3d intersection = RayTracing.trace(ray, boundingBox, 5.0);
 
                     if (intersection == null) {
                         return;
                     }
-                    intersection.substract(boundingBox.getMin());
+                    intersection.substract(boundingBox.start());
 
                     wrapper.set(Types.VAR_INT, 1, 2);
                     wrapper.write(Types.FLOAT, (float) intersection.getX());

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/rewriter/ScoreboardPacketRewriter1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@ package com.viaversion.viarewind.protocol.v1_8to1_7_6_10.rewriter;
 
 import com.viaversion.viarewind.protocol.v1_7_6_10to1_7_2_5.packet.ClientboundPackets1_7_2_5;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.Protocol1_8To1_7_6_10;
+import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage.EntityTracker1_8;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage.ScoreboardTracker;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
@@ -173,6 +174,7 @@ public class ScoreboardPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6
             }
 
             final ScoreboardTracker scoreboard = wrapper.user().get(ScoreboardTracker.class);
+            final EntityTracker1_8 tracker = wrapper.user().getEntityTracker(Protocol1_8To1_7_6_10.class);
 
             final byte mode = wrapper.passthrough(Types.BYTE);
             if (mode != 0 && !scoreboard.teamExists(team)) {
@@ -190,6 +192,10 @@ public class ScoreboardPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6
             if (mode == 0) {
                 scoreboard.addTeam(team);
             } else if (mode == 1) {
+                // Team removed, nametag visibility might have changed
+                for (final String member : scoreboard.getTeamMembers(team)) {
+                    tracker.checkNametagVisbility(member);
+                }
                 scoreboard.removeTeam(team);
             }
 
@@ -198,7 +204,9 @@ public class ScoreboardPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6
                 wrapper.passthrough(Types.STRING); // Prefix
                 wrapper.passthrough(Types.STRING); // Suffix
                 wrapper.passthrough(Types.BYTE); // Friendly fire
-                wrapper.read(Types.STRING); // Name tag visibility
+                final String nameTagVisibility = wrapper.read(Types.STRING);
+                final String previousVisibility = scoreboard.getTeamNameTagVisibility(team);
+                scoreboard.setTeamNameTagVisibility(team, nameTagVisibility);
                 byte color = wrapper.read(Types.BYTE);
                 if (mode == 2 && scoreboard.getTeamColor(team).get() != color) {
                     final String sidebar = scoreboard.getColorDependentSidebar().get(color);
@@ -209,6 +217,13 @@ public class ScoreboardPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6
                     sidebarPacket.scheduleSend(Protocol1_8To1_7_6_10.class);
                 }
                 scoreboard.setTeamColor(team, color);
+
+                // Re-evaluate nametag visibility for all team members when visibility changes
+                if (mode == 2 && !nameTagVisibility.equals(previousVisibility)) {
+                    for (final String member : scoreboard.getTeamMembers(team)) {
+                        tracker.checkNametagVisbility(member);
+                    }
+                }
             }
             if (mode == 0 || mode == 3 || mode == 4) {
                 byte color = scoreboard.getTeamColor(team).get();
@@ -223,6 +238,8 @@ public class ScoreboardPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6
                             continue;
                         }
                         scoreboard.removePlayerFromTeam(entry, team);
+                        // Player left team, nametag visibility may change
+                        tracker.checkNametagVisbility(entry);
                         if (entry.equals(username)) {
                             final PacketWrapper sidebarPacket = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_DISPLAY_OBJECTIVE, wrapper.user());
                             sidebarPacket.write(Types.BYTE, (byte) 1);
@@ -231,6 +248,8 @@ public class ScoreboardPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6
                         }
                     } else {
                         scoreboard.addPlayerToTeam(entry, team);
+                        // Player joined team, nametag visibility may change
+                        tracker.checkNametagVisbility(entry);
                         if (entry.equals(username) && scoreboard.getColorDependentSidebar().containsKey(color)) {
                             final PacketWrapper displayObjective = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_DISPLAY_OBJECTIVE, wrapper.user());
                             displayObjective.write(Types.BYTE, (byte) 1);

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/rewriter/WorldPacketRewriter1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,6 +24,7 @@ import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.Protocol1_8To1_7_6_10;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.data.Particles1_8;
 import com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage.WorldBorderEmulator;
 import com.viaversion.viarewind.utils.ChatUtil;
+import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
@@ -224,12 +225,7 @@ public class WorldPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6_10>
                         columnData[i + 3] = data[column + i * columns];
                     }
 
-                    final PacketWrapper mapData = PacketWrapper.create(ClientboundPackets1_8.MAP_ITEM_DATA, wrapper.user());
-                    mapData.write(Types.VAR_INT, id); // map id
-                    mapData.write(Types.SHORT, (short) columnData.length); // data length
-                    mapData.write(new FixedByteArrayType(columnData.length), columnData); // data
-
-                    mapData.send(Protocol1_8To1_7_6_10.class);
+                    sendMapItemData(wrapper.user(), id, columnData);
                 }
             }
 
@@ -242,12 +238,7 @@ public class WorldPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6_10>
                     iconData[i * 3 + 3] = icons[i * 4 + 2];
                 }
 
-                final PacketWrapper mapData = PacketWrapper.create(ClientboundPackets1_8.MAP_ITEM_DATA, wrapper.user());
-                mapData.write(Types.VAR_INT, id); // map id
-                mapData.write(Types.SHORT, (short) iconData.length); // data length
-                mapData.write(new FixedByteArrayType(iconData.length), iconData); // data
-
-                mapData.send(Protocol1_8To1_7_6_10.class);
+                sendMapItemData(wrapper.user(), id, iconData);
             }
 
             // Update scale
@@ -259,35 +250,55 @@ public class WorldPacketRewriter1_8 extends RewriterBase<Protocol1_8To1_7_6_10>
             mapData.send(Protocol1_8To1_7_6_10.class);
         });
 
-        protocol.registerClientbound(ClientboundPackets1_8.BLOCK_ENTITY_DATA, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Types.BLOCK_POSITION1_8, RewindTypes.SHORT_POSITION); // position
-                map(Types.UNSIGNED_BYTE); // action
-                map(Types.NAMED_COMPOUND_TAG, RewindTypes.COMPRESSED_NBT); // nbt
-            }
+        protocol.registerClientbound(ClientboundPackets1_8.BLOCK_ENTITY_DATA, wrapper -> {
+            wrapper.passthroughAndMap(Types.BLOCK_POSITION1_8, RewindTypes.SHORT_POSITION); // Position
+            wrapper.passthrough(Types.UNSIGNED_BYTE); // Action
+            wrapper.passthroughAndMap(Types.NAMED_COMPOUND_TAG, RewindTypes.COMPRESSED_NBT); // Tag
         });
 
         protocol.cancelClientbound(ClientboundPackets1_8.CHANGE_DIFFICULTY);
 
         protocol.registerClientbound(ClientboundPackets1_8.SET_BORDER, null, wrapper -> {
-            final WorldBorderEmulator emulator = wrapper.user().get(WorldBorderEmulator.class);
             wrapper.cancel();
-
             final int action = wrapper.read(Types.VAR_INT);
+            if (action == 3) { // initialize
+                final double x = wrapper.read(Types.DOUBLE);
+                final double z = wrapper.read(Types.DOUBLE);
+                final double oldRadius = wrapper.read(Types.DOUBLE);
+                final double newRadius = wrapper.read(Types.DOUBLE);
+                final long speed = wrapper.read(Types.VAR_LONG);
+
+                wrapper.user().put(new WorldBorderEmulator(wrapper.user(), x, z, oldRadius, newRadius, speed));
+            }
+
+            final WorldBorderEmulator emulator = wrapper.user().get(WorldBorderEmulator.class);
+            if (emulator == null) {
+                return;
+            }
+
             if (action == 0) { // set size
-                emulator.setSize(wrapper.read(Types.DOUBLE)); // radius
-            } else if (action == 1) { // lerp size
-                emulator.lerpSize(wrapper.read(Types.DOUBLE), wrapper.read(Types.DOUBLE), wrapper.read(Types.VAR_LONG)); // old radius, new radius, speed
+                final double radius = wrapper.read(Types.DOUBLE);
+                emulator.setSize(radius);
+            } else if (action == 1) { // delta size
+                final double oldRadius = wrapper.read(Types.DOUBLE);
+                final double newRadius = wrapper.read(Types.DOUBLE);
+                final long speed = wrapper.read(Types.VAR_LONG);
+                emulator.updateDeltaTime(oldRadius, newRadius, speed);
             } else if (action == 2) { // set center
-                emulator.setCenter(wrapper.read(Types.DOUBLE), wrapper.read(Types.DOUBLE)); // x, z
-            } else if (action == 3) { // initialize
-                emulator.init(
-                    wrapper.read(Types.DOUBLE), wrapper.read(Types.DOUBLE), // x, z
-                    wrapper.read(Types.DOUBLE), wrapper.read(Types.DOUBLE), // old radius, new radius
-                    wrapper.read(Types.VAR_LONG) // speed
-                );
+                final double x = wrapper.read(Types.DOUBLE);
+                final double z = wrapper.read(Types.DOUBLE);
+                emulator.setCenter(x, z);
             }
         });
     }
+
+    private void sendMapItemData(final UserConnection connection, final int id, final byte[] columnData) {
+        final PacketWrapper mapData = PacketWrapper.create(ClientboundPackets1_8.MAP_ITEM_DATA, connection);
+        mapData.write(Types.VAR_INT, id); // map id
+        mapData.write(Types.SHORT, (short) columnData.length); // data length
+        mapData.write(new FixedByteArrayType(columnData.length), columnData); // data
+
+        mapData.send(Protocol1_8To1_7_6_10.class);
+    }
+
 }

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/CompressionStatusTracker.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/EntityTracker1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -37,18 +37,26 @@ import com.viaversion.viaversion.libs.fastutil.objects.Object2IntMap;
 import com.viaversion.viaversion.libs.fastutil.objects.Object2IntOpenHashMap;
 import com.viaversion.viaversion.protocols.v1_8to1_9.packet.ClientboundPackets1_8;
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
+import java.util.Set;
 import java.util.UUID;
 import java.util.logging.Level;
 
+import com.viaversion.viarewind.api.minecraft.entitydata.EntityDataTypes1_7_6_10;
+import com.viaversion.viarewind.api.type.RewindTypes;
+import com.viaversion.viarewind.protocol.v1_7_6_10to1_7_2_5.packet.ClientboundPackets1_7_2_5;
+
 public class EntityTracker1_8 extends EntityTrackerBase {
 
     private final Int2ObjectMap<VirtualHologramEntity> holograms = new Int2ObjectArrayMap<>();
+    private final Int2IntMap extraHologramIds = new Int2IntArrayMap();
     private final Int2IntMap vehicles = new Int2IntArrayMap();
     private final Int2ObjectMap<UUID> entityIdToUUID = new Int2ObjectArrayMap<>();
     private final Object2IntMap<UUID> entityUUIDToId = new Object2IntOpenHashMap<>();
+    private final Int2IntMap playerNametagHiderEntities = new Int2IntArrayMap();
 
     private final List<EntityData> entityData = new ArrayList<>();
 
@@ -77,6 +85,10 @@ public class EntityTracker1_8 extends EntityTrackerBase {
             holograms.remove(entityId);
         }
 
+        if (playerNametagHiderEntities.containsKey(entityId)) {
+            despawnNametagHiderEntity(entityId);
+        }
+
         if (entityIdToUUID.containsKey(entityId)) {
             final UUID playerId = entityIdToUUID.remove(entityId);
 
@@ -88,7 +100,10 @@ public class EntityTracker1_8 extends EntityTrackerBase {
     @Override
     public void clearEntities() {
         super.clearEntities();
+        holograms.clear();
+        extraHologramIds.clear();
         vehicles.clear();
+        playerNametagHiderEntities.clear();
     }
 
     @Override
@@ -155,6 +170,11 @@ public class EntityTracker1_8 extends EntityTrackerBase {
         } else {
             vehicles.put(vehicleId, passengerId);
         }
+
+        // Re-evaluate nametag visibility when a player entity's passenger changes
+        if (vehicleId != -1 && entityIdToUUID.containsKey(vehicleId)) {
+            checkNametagVisibility(vehicleId);
+        }
     }
 
     protected void attachEntity(final int target) {
@@ -185,10 +205,112 @@ public class EntityTracker1_8 extends EntityTrackerBase {
         }
     }
 
+    public void checkNametagVisibility(final int entityId) {
+        if (!entityIdToUUID.containsKey(entityId)) {
+            return;
+        }
+        final boolean shouldHide = isPlayerNametagHidden(entityId);
+        final boolean hasServerPassenger = getPassenger(entityId) != -1;
+        final boolean hasSkull = playerNametagHiderEntities.containsKey(entityId);
+
+        if (shouldHide && !hasServerPassenger && !hasSkull) {
+            spawnNametagHiderEntity(entityId);
+        } else if ((!shouldHide || hasServerPassenger) && hasSkull) {
+            despawnNametagHiderEntity(entityId);
+        }
+    }
+
+    public void checkNametagVisbility(final String username) {
+        final GameProfileStorage profileStorage = user().get(GameProfileStorage.class);
+        final GameProfileStorage.GameProfile profile = profileStorage.get(username, false);
+        if (profile == null) {
+            return;
+        }
+
+        final int entityId = getPlayerEntityId(profile.uuid);
+        if (entityId == -1) {
+            return;
+        }
+
+        checkNametagVisibility(entityId);
+    }
+
+    private boolean isPlayerNametagHidden(final int entityId) {
+        final UUID uuid = entityIdToUUID.get(entityId);
+        if (uuid == null) {
+            return false;
+        }
+        final GameProfileStorage profileStorage = user().get(GameProfileStorage.class);
+        final GameProfileStorage.GameProfile profile = profileStorage.get(uuid);
+        if (profile == null) {
+            return false;
+        }
+        return user().get(ScoreboardTracker.class).isNametagHidden(profile.name);
+    }
+
+    private int getNametagHiderEntityId(final int playerEntityId) {
+        return Integer.MAX_VALUE - 32000 - playerEntityId;
+    }
+
+    private void spawnNametagHiderEntity(final int playerEntityId) {
+        final int entityId = getNametagHiderEntityId(playerEntityId);
+        playerNametagHiderEntities.put(playerEntityId, entityId);
+
+        final List<EntityData> mobData = new ArrayList<>();
+        mobData.add(new EntityData(0, EntityDataTypes1_7_6_10.BYTE, (byte) 0x20));
+        mobData.add(new EntityData(16, EntityDataTypes1_7_6_10.BYTE, (byte) 0));
+
+        final PacketWrapper spawnMob = PacketWrapper.create(ClientboundPackets1_7_2_5.ADD_MOB, user());
+        spawnMob.write(Types.VAR_INT, entityId);
+        spawnMob.write(Types.UNSIGNED_BYTE, (short) EntityTypes1_8.EntityType.MAGMA_CUBE.getId());
+        spawnMob.write(Types.INT, 0); // X
+        spawnMob.write(Types.INT, 0); // Y
+        spawnMob.write(Types.INT, 0); // Z
+        spawnMob.write(Types.BYTE, (byte) 0); // Yaw
+        spawnMob.write(Types.BYTE, (byte) 0); // Pitch
+        spawnMob.write(Types.BYTE, (byte) 0); // Head yaw
+        spawnMob.write(Types.SHORT, (short) 0); // Velocity x
+        spawnMob.write(Types.SHORT, (short) 0); // Velocity y
+        spawnMob.write(Types.SHORT, (short) 0); // Velocity z
+        spawnMob.write(RewindTypes.ENTITY_DATA_LIST1_7, mobData);
+        spawnMob.scheduleSend(Protocol1_8To1_7_6_10.class);
+
+        final PacketWrapper attach = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_ENTITY_LINK, user());
+        attach.write(Types.INT, entityId);
+        attach.write(Types.INT, playerEntityId);
+        attach.write(Types.BOOLEAN, false);
+        attach.scheduleSend(Protocol1_8To1_7_6_10.class);
+    }
+
+    private void despawnNametagHiderEntity(final int playerEntityId) {
+        if (!playerNametagHiderEntities.containsKey(playerEntityId)) return;
+        final int mobId = playerNametagHiderEntities.remove(playerEntityId);
+
+        final PacketWrapper despawn = PacketWrapper.create(ClientboundPackets1_7_2_5.REMOVE_ENTITIES, user());
+        despawn.write(Types.BYTE, (byte) 1);
+        despawn.write(Types.INT, mobId);
+        despawn.scheduleSend(Protocol1_8To1_7_6_10.class);
+    }
+
     public Int2ObjectMap<VirtualHologramEntity> getHolograms() {
         return holograms;
     }
 
+    public void setExtraHologramId(final int entityId, final int extraId) {
+        extraHologramIds.put(extraId, entityId);
+    }
+
+    public void removeExtraHologramId(int extraId) {
+        extraHologramIds.remove(extraId);
+    }
+
+    public int getHologramIdWithExtra(final int id) {
+        if (holograms.containsKey(id)) {
+            return id;
+        }
+        return extraHologramIds.getOrDefault(id, -1);
+    }
+
     public boolean isSpectator() {
         return clientEntityGameMode == 3;
     }

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/GameProfileStorage.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/InventoryTracker.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/PlayerSessionStorage.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/ScoreboardTracker.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -30,79 +30,101 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 
-public class ScoreboardTracker extends StoredObject {
+public final class ScoreboardTracker extends StoredObject {
+
     private final HashMap<String, List<String>> teams = new HashMap<>();
     private final HashSet<String> objectives = new HashSet<>();
     private final HashMap<String, ScoreTeam> scoreTeams = new HashMap<>();
     private final HashMap<String, Byte> teamColors = new HashMap<>();
     private final HashSet<String> scoreTeamNames = new HashSet<>();
     private final HashMap<Byte, String> colorDependentSidebar = new HashMap<>();
+    private final HashMap<String, String> teamNameTagVisibilities = new HashMap<>();
     private String colorIndependentSidebar;
 
-    public ScoreboardTracker(UserConnection user) {
+    public ScoreboardTracker(final UserConnection user) {
         super(user);
     }
 
-    public void addPlayerToTeam(String player, String team) {
+    public void addPlayerToTeam(final String player, final String team) {
         teams.computeIfAbsent(team, key -> new ArrayList<>()).add(player);
     }
 
-    public void setTeamColor(String team, Byte color) {
+    public void setTeamColor(final String team, final Byte color) {
         teamColors.put(team, color);
     }
 
-    public Optional<Byte> getTeamColor(String team) {
+    public Optional<Byte> getTeamColor(final String team) {
         return Optional.ofNullable(teamColors.get(team));
     }
 
-    public void addTeam(String team) {
+    public void addTeam(final String team) {
         teams.computeIfAbsent(team, key -> new ArrayList<>());
     }
 
-    public void removeTeam(String team) {
+    public void removeTeam(final String team) {
         teams.remove(team);
         scoreTeams.remove(team);
         teamColors.remove(team);
+        teamNameTagVisibilities.remove(team);
     }
 
-    public boolean teamExists(String team) {
+    public boolean teamExists(final String team) {
         return teams.containsKey(team);
     }
 
     public void removePlayerFromTeam(String player, String team) {
-        List<String> teamPlayers = teams.get(team);
-        if (teamPlayers != null) teamPlayers.remove(player);
+        final List<String> teamPlayers = teams.get(team);
+        if (teamPlayers != null) {
+            teamPlayers.remove(player);
+        }
     }
 
-    public boolean isPlayerInTeam(String player, String team) {
-        List<String> teamPlayers = teams.get(team);
+    public boolean isPlayerInTeam(final String player, final String team) {
+        final List<String> teamPlayers = teams.get(team);
         return teamPlayers != null && teamPlayers.contains(player);
     }
 
-    public boolean isPlayerInTeam(String player) {
-        for (List<String> teamPlayers : teams.values()) {
-            if (teamPlayers.contains(player)) return true;
+
+    public Optional<Byte> getPlayerTeamColor(final String player) {
+        final Optional<String> team = getTeam(player);
+        return team.flatMap(this::getTeamColor);
+    }
+
+    public Optional<String> getTeam(final String player) {
+        for (Map.Entry<String, List<String>> entry : teams.entrySet()) {
+            if (entry.getValue().contains(player)) {
+                return Optional.of(entry.getKey());
+            }
+        }
+        return Optional.empty();
+    }
+
+    public void setTeamNameTagVisibility(final String team, final String visibility) {
+        teamNameTagVisibilities.put(team, visibility);
+    }
+
+    public String getTeamNameTagVisibility(final String team) {
+        return teamNameTagVisibilities.getOrDefault(team, "always");
+    }
+
+    public boolean isNametagHidden(final String username) {
+        for (final Map.Entry<String, List<String>> entry : teams.entrySet()) {
+            if (entry.getValue().contains(username)) {
+                return "never".equalsIgnoreCase(teamNameTagVisibilities.getOrDefault(entry.getKey(), "always"));
+            }
         }
         return false;
     }
 
-    public Optional<Byte> getPlayerTeamColor(String player) {
-        Optional<String> team = getTeam(player);
-        return team.isPresent() ? getTeamColor(team.get()) : Optional.empty();
+    public List<String> getTeamMembers(final String team) {
+        return teams.getOrDefault(team, new ArrayList<>());
     }
 
-    public Optional<String> getTeam(String player) {
-        for (Map.Entry<String, List<String>> entry : teams.entrySet())
-            if (entry.getValue().contains(player))
-                return Optional.of(entry.getKey());
-        return Optional.empty();
-    }
-
-    public void addObjective(String name) {
+    public void addObjective(final String name) {
         objectives.add(name);
     }
 
-    public void removeObjective(String name) {
+    public void removeObjective(final String name) {
         objectives.remove(name);
         colorDependentSidebar.values().remove(name);
         if (name.equals(colorIndependentSidebar)) {
@@ -110,13 +132,19 @@ public class ScoreboardTracker extends StoredObject {
         }
     }
 
-    public boolean objectiveExists(String name) {
+    public boolean objectiveExists(final String name) {
         return objectives.contains(name);
     }
 
-    public String sendTeamForScore(String score) {
-        if (score.length() <= 16) return score;
-        if (scoreTeams.containsKey(score)) return scoreTeams.get(score).name;
+    public String sendTeamForScore(final String score) {
+        if (score.length() <= 16) {
+            return score;
+        }
+
+        if (scoreTeams.containsKey(score)) {
+            return scoreTeams.get(score).name;
+        }
+
         int l = 16;
         int i = Math.min(16, score.length() - 16);
         String name = score.substring(i, i + l);
@@ -124,19 +152,21 @@ public class ScoreboardTracker extends StoredObject {
             i--;
             while (score.length() - l - i > 16) {
                 l--;
-                if (l < 1) return score;
+                if (l < 1) {
+                    return score;
+                }
                 i = Math.min(16, score.length() - l);
             }
             name = score.substring(i, i + l);
         }
-        String prefix = score.substring(0, i);
-        String suffix = i + l >= score.length() ? "" : score.substring(i + l);
+        final String prefix = score.substring(0, i);
+        final String suffix = i + l >= score.length() ? "" : score.substring(i + l);
 
-        ScoreTeam scoreTeam = new ScoreTeam(name, prefix, suffix);
+        final ScoreTeam scoreTeam = new ScoreTeam(name, prefix, suffix);
         scoreTeams.put(score, scoreTeam);
         scoreTeamNames.add(name);
 
-        PacketWrapper teamPacket = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_PLAYER_TEAM, getUser());
+        PacketWrapper teamPacket = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_PLAYER_TEAM, user());
         teamPacket.write(Types.STRING, name);
         teamPacket.write(Types.BYTE, (byte) 0);
         teamPacket.write(Types.STRING, "ViaRewind");
@@ -150,12 +180,15 @@ public class ScoreboardTracker extends StoredObject {
         return name;
     }
 
-    public String removeTeamForScore(String score) {
-        ScoreTeam scoreTeam = scoreTeams.remove(score);
-        if (scoreTeam == null) return score;
+    public String removeTeamForScore(final String score) {
+        final ScoreTeam scoreTeam = scoreTeams.remove(score);
+        if (scoreTeam == null) {
+            return score;
+        }
+
         scoreTeamNames.remove(scoreTeam.name);
 
-        PacketWrapper teamPacket = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_PLAYER_TEAM, getUser());
+        final PacketWrapper teamPacket = PacketWrapper.create(ClientboundPackets1_7_2_5.SET_PLAYER_TEAM, user());
         teamPacket.write(Types.STRING, scoreTeam.name);
         teamPacket.write(Types.BYTE, (byte) 1);
         teamPacket.send(Protocol1_8To1_7_6_10.class);
@@ -167,7 +200,7 @@ public class ScoreboardTracker extends StoredObject {
         return this.colorIndependentSidebar;
     }
 
-    public void setColorIndependentSidebar(String colorIndependentSidebar) {
+    public void setColorIndependentSidebar(final String colorIndependentSidebar) {
         this.colorIndependentSidebar = colorIndependentSidebar;
     }
 
@@ -175,15 +208,6 @@ public class ScoreboardTracker extends StoredObject {
         return this.colorDependentSidebar;
     }
 
-    private static class ScoreTeam {
-        private final String prefix;
-        private final String suffix;
-        private final String name;
-
-        public ScoreTeam(String name, String prefix, String suffix) {
-            this.prefix = prefix;
-            this.suffix = suffix;
-            this.name = name;
-        }
+    private record ScoreTeam(String name, String prefix, String suffix) {
     }
 }

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/storage/WorldBorderEmulator.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,63 +19,54 @@ package com.viaversion.viarewind.protocol.v1_8to1_7_6_10.storage;
 
 import com.viaversion.viaversion.api.connection.StoredObject;
 import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.util.MathUtil;
+
+public final class WorldBorderEmulator extends StoredObject {
 
-public class WorldBorderEmulator extends StoredObject {
     private double x, z;
     private double oldDiameter, newDiameter;
 
-    private long lerpTime;
-    private long lerpStartTime;
+    private long deltaTime;
+    private long deltaStartTime;
 
-    private boolean init = false;
-
-    public WorldBorderEmulator(UserConnection user) {
+    public WorldBorderEmulator(UserConnection user, final double x, final double z, final double oldDiameter, final double newDiameter, final long deltaTime) {
         super(user);
-    }
 
-    public void init(double x, double z, double oldDiameter, double newDiameter, long lerpTime) {
         this.x = x;
         this.z = z;
 
         this.oldDiameter = oldDiameter;
         this.newDiameter = newDiameter;
 
-        this.lerpTime = lerpTime;
-
-        init = true;
+        this.deltaTime = deltaTime;
     }
 
-    public void setCenter(double x, double z) {
+    public void setCenter(final double x, final double z) {
         this.x = x;
         this.z = z;
     }
 
-    public void lerpSize(double oldDiameter, double newDiameter, long lerpTime) {
+    public void updateDeltaTime(final double oldDiameter, final double newDiameter, final long deltaTime) {
         this.oldDiameter = oldDiameter;
         this.newDiameter = newDiameter;
-        this.lerpTime = lerpTime;
-        this.lerpStartTime = System.currentTimeMillis();
+        this.deltaTime = deltaTime;
+        this.deltaStartTime = System.currentTimeMillis();
     }
 
     public double getSize() {
-        if (lerpTime == 0) {
+        if (deltaTime == 0) {
             return newDiameter;
         }
 
-        double percent = ((double) (System.currentTimeMillis() - lerpStartTime) / (double) (lerpTime));
-
-        // Clamp value
-        if (percent > 1.0D) percent = 1.0d;
-        else if (percent < 0.0D) percent = 0.0d;
-
-        return oldDiameter + (newDiameter - oldDiameter) * percent;
+        final double percent = ((double) (System.currentTimeMillis() - deltaStartTime) / (double) (deltaTime));
+        return oldDiameter + (newDiameter - oldDiameter) * MathUtil.clamp(percent, 0D, 1D);
     }
 
-    public void setSize(double size) {
+    public void setSize(final double size) {
         this.oldDiameter = size;
         this.newDiameter = size;
 
-        this.lerpTime = 0;
+        this.deltaTime = 0;
     }
 
     public double getX() {
@@ -86,10 +77,6 @@ public class WorldBorderEmulator extends StoredObject {
         return z;
     }
 
-    public boolean isInit() {
-        return init;
-    }
-
     public enum Side {
         NORTH(0, -1),
         EAST(1, 0),
@@ -105,3 +92,4 @@ public class WorldBorderEmulator extends StoredObject {
         }
     }
 }
+

common/src/main/java/com/viaversion/viarewind/protocol/v1_8to1_7_6_10/task/WorldBorderUpdateTask.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/Protocol1_9To1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,7 +18,8 @@
 package com.viaversion.viarewind.protocol.v1_9to1_8;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viarewind.protocol.v1_9to1_8.data.RewindMappingData1_8;
+import com.viaversion.viarewind.api.data.RewindMappingData;
+import com.viaversion.viarewind.protocol.v1_9to1_8.provider.InventoryProvider;
 import com.viaversion.viarewind.protocol.v1_9to1_8.rewriter.BlockItemPacketRewriter1_9;
 import com.viaversion.viarewind.protocol.v1_9to1_8.rewriter.EntityPacketRewriter1_9;
 import com.viaversion.viarewind.protocol.v1_9to1_8.rewriter.PlayerPacketRewriter1_9;
@@ -60,7 +61,7 @@ public class Protocol1_9To1_8 extends BackwardsProtocol<ClientboundPackets1_9, C
         }
     };
 
-    public static final RewindMappingData1_8 MAPPINGS = new RewindMappingData1_8();
+    public static final RewindMappingData MAPPINGS = new RewindMappingData("1.9.4", "1.8");
 
     private final BlockItemPacketRewriter1_9 itemRewriter = new BlockItemPacketRewriter1_9(this);
     private final EntityPacketRewriter1_9 entityRewriter = new EntityPacketRewriter1_9(this);
@@ -92,12 +93,14 @@ public class Protocol1_9To1_8 extends BackwardsProtocol<ClientboundPackets1_9, C
 
     @Override
     public void register(ViaProviders providers) {
+        providers.register(InventoryProvider.class, new InventoryProvider());
+
         Via.getManager().getScheduler().scheduleRepeating(new LevitationUpdateTask(), 0L, 50L, TimeUnit.MILLISECONDS);
         Via.getManager().getScheduler().scheduleRepeating(new CooldownIndicatorTask(), 0L, 50L, TimeUnit.MILLISECONDS);
     }
 
     @Override
-    public RewindMappingData1_8 getMappingData() {
+    public RewindMappingData getMappingData() {
         return MAPPINGS;
     }
 

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/cooldown/ActionBarVisualization.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/cooldown/BossBarVisualization.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/cooldown/CooldownVisualization.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/cooldown/DisabledCooldownVisualization.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/cooldown/TitleCooldownVisualization.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/data/EffectIdMappings1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/data/EntityDataIndex1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/data/PotionIdMappings1_8.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/data/RewindMappingData1_8.java

@@ -1,48 +0,0 @@
-/*
- * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viarewind.protocol.v1_9to1_8.data;
-
-import com.viaversion.nbt.tag.CompoundTag;
-import com.viaversion.viarewind.api.data.RewindMappingDataLoader;
-import com.viaversion.viaversion.libs.fastutil.objects.ObjectArrayList;
-import com.viaversion.viaversion.libs.fastutil.objects.ObjectList;
-import com.viaversion.viaversion.libs.gson.JsonArray;
-import com.viaversion.viaversion.libs.gson.JsonElement;
-
-public final class RewindMappingData1_8 extends com.viaversion.viarewind.api.data.RewindMappingData {
-
-    private final ObjectList<String> sounds = new ObjectArrayList<>();
-
-    public RewindMappingData1_8() {
-        super("1.9.4", "1.8");
-    }
-
-    @Override
-    protected void loadExtras(CompoundTag data) {
-        super.loadExtras(data);
-
-        final JsonArray sounds = RewindMappingDataLoader.INSTANCE.loadData("sounds-1.9.json").getAsJsonArray("sounds");
-        for (final JsonElement sound : sounds) {
-            this.sounds.add(sound.getAsString());
-        }
-    }
-
-    public String soundName(final int soundId) {
-        return sounds.get(soundId);
-    }
-}

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/data/WitherBossBar.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/provider/InventoryProvider.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,22 +15,15 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viarewind.api.minecraft.math;
+package com.viaversion.viarewind.protocol.v1_9to1_8.provider;
 
-public class Ray3d {
-    Vector3d start;
-    Vector3d dir;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.platform.providers.Provider;
 
-    public Ray3d(Vector3d start, Vector3d dir) {
-        this.start = start;
-        this.dir = dir;
+public class InventoryProvider implements Provider {
+
+    public boolean hasElytra(final UserConnection connection) {
+        return false;
     }
 
-    public Vector3d getStart() {
-        return this.start;
-    }
-
-    public Vector3d getDir() {
-        return this.dir;
-    }
 }

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/rewriter/BlockItemPacketRewriter1_9.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/rewriter/EntityPacketRewriter1_9.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -118,7 +118,7 @@ public class EntityPacketRewriter1_9 extends VREntityRewriter<ClientboundPackets
                         wrapper.set(Types.BYTE, 1, yaw);
 
                         int y = wrapper.get(Types.INT, 1);
-                        y += 10;
+                        y += 6;
                         wrapper.set(Types.INT, 1, y);
                     }
 
@@ -366,7 +366,7 @@ public class EntityPacketRewriter1_9 extends VREntityRewriter<ClientboundPackets
                         yaw -= 64;
                         wrapper.set(Types.BYTE, 0, yaw);
                         int y = wrapper.get(Types.INT, 1);
-                        y += 10;
+                        y += 6;
                         wrapper.set(Types.INT, 1, y);
                     }
                 });
@@ -464,7 +464,7 @@ public class EntityPacketRewriter1_9 extends VREntityRewriter<ClientboundPackets
                         wrapper.set(Types.BYTE, 0, yaw);
 
                         int y = wrapper.get(Types.INT, 1);
-                        y += 10;
+                        y += 6;
                         wrapper.set(Types.INT, 1, y);
                     }
                     tracker.resetEntityOffset(entityId);

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/rewriter/PlayerPacketRewriter1_9.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,12 +23,14 @@ import com.viaversion.nbt.tag.StringTag;
 import com.viaversion.viarewind.ViaRewind;
 import com.viaversion.viarewind.api.type.RewindTypes;
 import com.viaversion.viarewind.protocol.v1_9to1_8.Protocol1_9To1_8;
+import com.viaversion.viarewind.protocol.v1_9to1_8.provider.InventoryProvider;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.BlockPlaceDestroyTracker;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.BossBarStorage;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.CooldownStorage;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.EntityTracker1_9;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.PlayerPositionTracker;
 import com.viaversion.viarewind.utils.ChatUtil;
+import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.data.entity.EntityTracker;
 import com.viaversion.viaversion.api.minecraft.BlockPosition;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
@@ -409,10 +411,11 @@ public class PlayerPacketRewriter1_9 extends RewriterBase<Protocol1_9To1_8> {
                 map(Types.VAR_INT); // Action parameter
                 handler(wrapper -> {
                     final PlayerPositionTracker tracker = wrapper.user().get(PlayerPositionTracker.class);
+                    final InventoryProvider provider = Via.getManager().getProviders().get(InventoryProvider.class);
                     final int action = wrapper.get(Types.VAR_INT, 1);
                     if (action == 6) { // Jump with horse
                         wrapper.set(Types.VAR_INT, 1, 7);
-                    } else if (action == 0 && !tracker.isOnGround()) { // Start sneaking
+                    } else if (action == 0 && provider.hasElytra(wrapper.user()) && !tracker.isOnGround()) { // Start sneaking
                         final PacketWrapper elytra = PacketWrapper.create(ServerboundPackets1_9.PLAYER_COMMAND, wrapper.user());
                         elytra.write(Types.VAR_INT, wrapper.get(Types.VAR_INT, 0));
                         elytra.write(Types.VAR_INT, 8);
@@ -444,7 +447,7 @@ public class PlayerPacketRewriter1_9 extends RewriterBase<Protocol1_9To1_8> {
                 map(Types.BLOCK_POSITION1_8); // Position
                 handler(wrapper -> {
                     for (int i = 0; i < 4; i++) {
-                        final JsonElement json = wrapper.read(RewindTypes.SIGN_COMPONENT);
+                        final JsonElement json = wrapper.read(Types.COMPONENT);
                         if (!json.isJsonPrimitive()) {
                             throw new IllegalStateException("Invalid sign text: " + StringUtil.forLogging(json));
                         }

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/rewriter/WorldPacketRewriter1_9.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -251,11 +251,11 @@ public class WorldPacketRewriter1_9 extends RewriterBase<Protocol1_9To1_8> {
             public void register() {
                 handler(wrapper -> {
                     final int soundId = wrapper.read(Types.VAR_INT);
-                    final String soundName = protocol.getMappingData().soundName(soundId);
-                    if (soundName == null) {
+                    final int mappedSoundId = protocol.getMappingData().getFullSoundMappings().getNewId(soundId);
+                    if (mappedSoundId == -1) {
                         wrapper.cancel();
                     } else {
-                        wrapper.write(Types.STRING, protocol.getMappingData().getMappedNamedSound(soundName));
+                        wrapper.write(Types.STRING, protocol.getMappingData().getFullSoundMappings().mappedIdentifier(mappedSoundId));
                     }
                 });
                 read(Types.VAR_INT); // Sound category

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/BlockPlaceDestroyTracker.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/BossBarStorage.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/CooldownStorage.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/EntityTracker1_9.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/LevitationStorage.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/PlayerPositionTracker.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/storage/WindowTracker.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/task/CooldownIndicatorTask.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/task/LevitationUpdateTask.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

common/src/main/java/com/viaversion/viarewind/utils/ChatUtil.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -49,7 +49,7 @@ public class ChatUtil {
         try {
             return jsonToLegacy(JsonParser.parseString(json));
         } catch (Exception e) {
-            if (!Via.getConfig().isSuppressConversionWarnings()) {
+            if (Via.getConfig().logTextComponentConversionErrors()) {
                 ViaRewind.getPlatform().getLogger().log(Level.WARNING, "Could not convert component to legacy text: " + json, e);
             }
         }
@@ -71,7 +71,7 @@ public class ChatUtil {
                 }
                 return legacy;
             } catch (Exception ex) {
-                if (!Via.getConfig().isSuppressConversionWarnings()) {
+                if (Via.getConfig().logTextComponentConversionErrors()) {
                     ViaRewind.getPlatform().getLogger().log(Level.WARNING, "Could not convert component to legacy text: " + component, ex);
                 }
             }

common/src/main/resources/assets/viarewind/data/item-mappings-1.8.json

@@ -126,6 +126,7 @@
     },
     "180": {
       "id": "128",
+      "data": "-1",
       "name": "1.8 Red Sandstone Stairs"
     },
     "181": {

common/src/main/resources/assets/viarewind/data/sounds-1.9.json

@@ -1,447 +0,0 @@
-{
-  "sounds": [
-    "ambient.cave",
-    "block.anvil.break",
-    "block.anvil.destroy",
-    "block.anvil.fall",
-    "block.anvil.hit",
-    "block.anvil.land",
-    "block.anvil.place",
-    "block.anvil.step",
-    "block.anvil.use",
-    "block.brewing_stand.brew",
-    "block.chest.close",
-    "block.chest.locked",
-    "block.chest.open",
-    "block.chorus_flower.death",
-    "block.chorus_flower.grow",
-    "block.cloth.break",
-    "block.cloth.fall",
-    "block.cloth.hit",
-    "block.cloth.place",
-    "block.cloth.step",
-    "block.comparator.click",
-    "block.dispenser.dispense",
-    "block.dispenser.fail",
-    "block.dispenser.launch",
-    "block.end_gateway.spawn",
-    "block.enderchest.close",
-    "block.enderchest.open",
-    "block.fence_gate.close",
-    "block.fence_gate.open",
-    "block.fire.ambient",
-    "block.fire.extinguish",
-    "block.furnace.fire_crackle",
-    "block.glass.break",
-    "block.glass.fall",
-    "block.glass.hit",
-    "block.glass.place",
-    "block.glass.step",
-    "block.grass.break",
-    "block.grass.fall",
-    "block.grass.hit",
-    "block.grass.place",
-    "block.grass.step",
-    "block.gravel.break",
-    "block.gravel.fall",
-    "block.gravel.hit",
-    "block.gravel.place",
-    "block.gravel.step",
-    "block.iron_door.close",
-    "block.iron_door.open",
-    "block.iron_trapdoor.close",
-    "block.iron_trapdoor.open",
-    "block.ladder.break",
-    "block.ladder.fall",
-    "block.ladder.hit",
-    "block.ladder.place",
-    "block.ladder.step",
-    "block.lava.ambient",
-    "block.lava.extinguish",
-    "block.lava.pop",
-    "block.lever.click",
-    "block.metal.break",
-    "block.metal.fall",
-    "block.metal.hit",
-    "block.metal.place",
-    "block.metal.step",
-    "block.metal_pressureplate.click_off",
-    "block.metal_pressureplate.click_on",
-    "block.note.basedrum",
-    "block.note.bass",
-    "block.note.harp",
-    "block.note.hat",
-    "block.note.pling",
-    "block.note.snare",
-    "block.piston.contract",
-    "block.piston.extend",
-    "block.portal.ambient",
-    "block.portal.travel",
-    "block.portal.trigger",
-    "block.redstone_torch.burnout",
-    "block.sand.break",
-    "block.sand.fall",
-    "block.sand.hit",
-    "block.sand.place",
-    "block.sand.step",
-    "block.slime.break",
-    "block.slime.fall",
-    "block.slime.hit",
-    "block.slime.place",
-    "block.slime.step",
-    "block.snow.break",
-    "block.snow.fall",
-    "block.snow.hit",
-    "block.snow.place",
-    "block.snow.step",
-    "block.stone.break",
-    "block.stone.fall",
-    "block.stone.hit",
-    "block.stone.place",
-    "block.stone.step",
-    "block.stone_button.click_off",
-    "block.stone_button.click_on",
-    "block.stone_pressureplate.click_off",
-    "block.stone_pressureplate.click_on",
-    "block.tripwire.attach",
-    "block.tripwire.click_off",
-    "block.tripwire.click_on",
-    "block.tripwire.detach",
-    "block.water.ambient",
-    "block.waterlily.place",
-    "block.wood.break",
-    "block.wood.fall",
-    "block.wood.hit",
-    "block.wood.place",
-    "block.wood.step",
-    "block.wood_button.click_off",
-    "block.wood_button.click_on",
-    "block.wood_pressureplate.click_off",
-    "block.wood_pressureplate.click_on",
-    "block.wooden_door.close",
-    "block.wooden_door.open",
-    "block.wooden_trapdoor.close",
-    "block.wooden_trapdoor.open",
-    "enchant.thorns.hit",
-    "entity.armorstand.break",
-    "entity.armorstand.fall",
-    "entity.armorstand.hit",
-    "entity.armorstand.place",
-    "entity.arrow.hit",
-    "entity.arrow.hit_player",
-    "entity.arrow.shoot",
-    "entity.bat.ambient",
-    "entity.bat.death",
-    "entity.bat.hurt",
-    "entity.bat.loop",
-    "entity.bat.takeoff",
-    "entity.blaze.ambient",
-    "entity.blaze.burn",
-    "entity.blaze.death",
-    "entity.blaze.hurt",
-    "entity.blaze.shoot",
-    "entity.bobber.splash",
-    "entity.bobber.throw",
-    "entity.cat.ambient",
-    "entity.cat.death",
-    "entity.cat.hiss",
-    "entity.cat.hurt",
-    "entity.cat.purr",
-    "entity.cat.purreow",
-    "entity.chicken.ambient",
-    "entity.chicken.death",
-    "entity.chicken.egg",
-    "entity.chicken.hurt",
-    "entity.chicken.step",
-    "entity.cow.ambient",
-    "entity.cow.death",
-    "entity.cow.hurt",
-    "entity.cow.milk",
-    "entity.cow.step",
-    "entity.creeper.death",
-    "entity.creeper.hurt",
-    "entity.creeper.primed",
-    "entity.donkey.ambient",
-    "entity.donkey.angry",
-    "entity.donkey.chest",
-    "entity.donkey.death",
-    "entity.donkey.hurt",
-    "entity.egg.throw",
-    "entity.elder_guardian.ambient",
-    "entity.elder_guardian.ambient_land",
-    "entity.elder_guardian.curse",
-    "entity.elder_guardian.death",
-    "entity.elder_guardian.death_land",
-    "entity.elder_guardian.hurt",
-    "entity.elder_guardian.hurt_land",
-    "entity.enderdragon.ambient",
-    "entity.enderdragon.death",
-    "entity.enderdragon.flap",
-    "entity.enderdragon.growl",
-    "entity.enderdragon.hurt",
-    "entity.enderdragon.shoot",
-    "entity.enderdragon_fireball.explode",
-    "entity.endereye.launch",
-    "entity.endermen.ambient",
-    "entity.endermen.death",
-    "entity.endermen.hurt",
-    "entity.endermen.scream",
-    "entity.endermen.stare",
-    "entity.endermen.teleport",
-    "entity.endermite.ambient",
-    "entity.endermite.death",
-    "entity.endermite.hurt",
-    "entity.endermite.step",
-    "entity.enderpearl.throw",
-    "entity.experience_bottle.throw",
-    "entity.experience_orb.pickup",
-    "entity.experience_orb.touch",
-    "entity.firework.blast",
-    "entity.firework.blast_far",
-    "entity.firework.large_blast",
-    "entity.firework.large_blast_far",
-    "entity.firework.launch",
-    "entity.firework.shoot",
-    "entity.firework.twinkle",
-    "entity.firework.twinkle_far",
-    "entity.generic.big_fall",
-    "entity.generic.burn",
-    "entity.generic.death",
-    "entity.generic.drink",
-    "entity.generic.eat",
-    "entity.generic.explode",
-    "entity.generic.extinguish_fire",
-    "entity.generic.hurt",
-    "entity.generic.small_fall",
-    "entity.generic.splash",
-    "entity.generic.swim",
-    "entity.ghast.ambient",
-    "entity.ghast.death",
-    "entity.ghast.hurt",
-    "entity.ghast.scream",
-    "entity.ghast.shoot",
-    "entity.ghast.warn",
-    "entity.guardian.ambient",
-    "entity.guardian.ambient_land",
-    "entity.guardian.attack",
-    "entity.guardian.death",
-    "entity.guardian.death_land",
-    "entity.guardian.flop",
-    "entity.guardian.hurt",
-    "entity.guardian.hurt_land",
-    "entity.horse.ambient",
-    "entity.horse.angry",
-    "entity.horse.armor",
-    "entity.horse.breathe",
-    "entity.horse.death",
-    "entity.horse.eat",
-    "entity.horse.gallop",
-    "entity.horse.hurt",
-    "entity.horse.jump",
-    "entity.horse.land",
-    "entity.horse.saddle",
-    "entity.horse.step",
-    "entity.horse.step_wood",
-    "entity.hostile.big_fall",
-    "entity.hostile.death",
-    "entity.hostile.hurt",
-    "entity.hostile.small_fall",
-    "entity.hostile.splash",
-    "entity.hostile.swim",
-    "entity.irongolem.attack",
-    "entity.irongolem.death",
-    "entity.irongolem.hurt",
-    "entity.irongolem.step",
-    "entity.item.break",
-    "entity.item.pickup",
-    "entity.itemframe.add_item",
-    "entity.itemframe.break",
-    "entity.itemframe.place",
-    "entity.itemframe.remove_item",
-    "entity.itemframe.rotate_item",
-    "entity.leashknot.break",
-    "entity.leashknot.place",
-    "entity.lightning.impact",
-    "entity.lightning.thunder",
-    "entity.lingeringpotion.throw",
-    "entity.magmacube.death",
-    "entity.magmacube.hurt",
-    "entity.magmacube.jump",
-    "entity.magmacube.squish",
-    "entity.minecart.inside",
-    "entity.minecart.riding",
-    "entity.mooshroom.shear",
-    "entity.mule.ambient",
-    "entity.mule.death",
-    "entity.mule.hurt",
-    "entity.painting.break",
-    "entity.painting.place",
-    "entity.pig.ambient",
-    "entity.pig.death",
-    "entity.pig.hurt",
-    "entity.pig.saddle",
-    "entity.pig.step",
-    "entity.player.attack.crit",
-    "entity.player.attack.knockback",
-    "entity.player.attack.nodamage",
-    "entity.player.attack.strong",
-    "entity.player.attack.sweep",
-    "entity.player.attack.weak",
-    "entity.player.big_fall",
-    "entity.player.breath",
-    "entity.player.burp",
-    "entity.player.death",
-    "entity.player.hurt",
-    "entity.player.levelup",
-    "entity.player.small_fall",
-    "entity.player.splash",
-    "entity.player.swim",
-    "entity.rabbit.ambient",
-    "entity.rabbit.attack",
-    "entity.rabbit.death",
-    "entity.rabbit.hurt",
-    "entity.rabbit.jump",
-    "entity.sheep.ambient",
-    "entity.sheep.death",
-    "entity.sheep.hurt",
-    "entity.sheep.shear",
-    "entity.sheep.step",
-    "entity.shulker.ambient",
-    "entity.shulker.close",
-    "entity.shulker.death",
-    "entity.shulker.hurt",
-    "entity.shulker.hurt_closed",
-    "entity.shulker.open",
-    "entity.shulker.shoot",
-    "entity.shulker.teleport",
-    "entity.shulker_bullet.hit",
-    "entity.shulker_bullet.hurt",
-    "entity.silverfish.ambient",
-    "entity.silverfish.death",
-    "entity.silverfish.hurt",
-    "entity.silverfish.step",
-    "entity.skeleton.ambient",
-    "entity.skeleton.death",
-    "entity.skeleton.hurt",
-    "entity.skeleton.shoot",
-    "entity.skeleton.step",
-    "entity.skeleton_horse.ambient",
-    "entity.skeleton_horse.death",
-    "entity.skeleton_horse.hurt",
-    "entity.slime.attack",
-    "entity.slime.death",
-    "entity.slime.hurt",
-    "entity.slime.jump",
-    "entity.slime.squish",
-    "entity.small_magmacube.death",
-    "entity.small_magmacube.hurt",
-    "entity.small_magmacube.squish",
-    "entity.small_slime.death",
-    "entity.small_slime.hurt",
-    "entity.small_slime.jump",
-    "entity.small_slime.squish",
-    "entity.snowball.throw",
-    "entity.snowman.ambient",
-    "entity.snowman.death",
-    "entity.snowman.hurt",
-    "entity.snowman.shoot",
-    "entity.spider.ambient",
-    "entity.spider.death",
-    "entity.spider.hurt",
-    "entity.spider.step",
-    "entity.splash_potion.break",
-    "entity.splash_potion.throw",
-    "entity.squid.ambient",
-    "entity.squid.death",
-    "entity.squid.hurt",
-    "entity.tnt.primed",
-    "entity.villager.ambient",
-    "entity.villager.death",
-    "entity.villager.hurt",
-    "entity.villager.no",
-    "entity.villager.trading",
-    "entity.villager.yes",
-    "entity.witch.ambient",
-    "entity.witch.death",
-    "entity.witch.drink",
-    "entity.witch.hurt",
-    "entity.witch.throw",
-    "entity.wither.ambient",
-    "entity.wither.break_block",
-    "entity.wither.death",
-    "entity.wither.hurt",
-    "entity.wither.shoot",
-    "entity.wither.spawn",
-    "entity.wolf.ambient",
-    "entity.wolf.death",
-    "entity.wolf.growl",
-    "entity.wolf.howl",
-    "entity.wolf.hurt",
-    "entity.wolf.pant",
-    "entity.wolf.shake",
-    "entity.wolf.step",
-    "entity.wolf.whine",
-    "entity.zombie.ambient",
-    "entity.zombie.attack_door_wood",
-    "entity.zombie.attack_iron_door",
-    "entity.zombie.break_door_wood",
-    "entity.zombie.death",
-    "entity.zombie.hurt",
-    "entity.zombie.infect",
-    "entity.zombie.step",
-    "entity.zombie_horse.ambient",
-    "entity.zombie_horse.death",
-    "entity.zombie_horse.hurt",
-    "entity.zombie_pig.ambient",
-    "entity.zombie_pig.angry",
-    "entity.zombie_pig.death",
-    "entity.zombie_pig.hurt",
-    "entity.zombie_villager.ambient",
-    "entity.zombie_villager.converted",
-    "entity.zombie_villager.cure",
-    "entity.zombie_villager.death",
-    "entity.zombie_villager.hurt",
-    "entity.zombie_villager.step",
-    "item.armor.equip_chain",
-    "item.armor.equip_diamond",
-    "item.armor.equip_generic",
-    "item.armor.equip_gold",
-    "item.armor.equip_iron",
-    "item.armor.equip_leather",
-    "item.bottle.fill",
-    "item.bottle.fill_dragonbreath",
-    "item.bucket.empty",
-    "item.bucket.empty_lava",
-    "item.bucket.fill",
-    "item.bucket.fill_lava",
-    "item.chorus_fruit.teleport",
-    "item.firecharge.use",
-    "item.flintandsteel.use",
-    "item.hoe.till",
-    "item.shield.block",
-    "item.shield.break",
-    "item.shovel.flatten",
-    "music.creative",
-    "music.credits",
-    "music.dragon",
-    "music.end",
-    "music.game",
-    "music.menu",
-    "music.nether",
-    "record.11",
-    "record.13",
-    "record.blocks",
-    "record.cat",
-    "record.chirp",
-    "record.far",
-    "record.mall",
-    "record.mellohi",
-    "record.stal",
-    "record.strad",
-    "record.wait",
-    "record.ward",
-    "ui.button.click",
-    "weather.rain",
-    "weather.rain.above"
-  ]
-}

fabric/src/main/java/com/viaversion/viarewind/ViaFabricAddon.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

fabric/src/main/java/com/viaversion/viarewind/fabric/util/LoggerWrapper.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaRewind - https://github.com/ViaVersion/ViaRewind
- * Copyright (C) 2018-2025 ViaVersion and contributors
+ * Copyright (C) 2018-2026 ViaVersion and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

fabric/src/main/resources/fabric.mod.json

@@ -13,7 +13,7 @@
   "icon": "assets/viarewind/textures/squarelogo.png",
   "environment": "*",
   "authors": [
-    "FlorianMichael/EnZaXD",
+    "Florian Reuth (EnZaXD)",
     "Gerrygames",
     "creeper123123321"
   ],
@@ -24,7 +24,7 @@
   },
   "depends": {
     "viafabric": ">=0.4.14",
-    "viabackwards": ">=5.5.0"
+    "viabackwards": ">=5.7.2"
   },
   "custom": {
     "modmenu:api": true,

gradle.properties

@@ -7,14 +7,14 @@ org.gradle.configuration-cache=true
 project_jvm_version=17
 
 project_group=com.viaversion
-project_version=4.0.10
+project_version=4.1.0-SNAPSHOT
 project_description=ViaVersion addon to allow 1.8.x and 1.7.x clients on newer server versions.
 
-publishing_dev_id=FlorianMichael
-publishing_dev_name=EnZaXD
-publishing_dev_mail=florian.michael07@gmail.com
+publishing_dev_id=florianreuth
+publishing_dev_name=Florian Reuth
+publishing_dev_mail=git@florianreuth.de
 
 # Modrinth/Hangar Publishing
-minecraft_versions=1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1, 1.21, 1.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20, 1.19.4, 1.19.3, 1.19.2, 1.19.1, 1.19, 1.18.2, 1.18.1, 1.18, 1.17.1, 1.17, 1.16.5, 1.16.4, 1.16.3, 1.16.2, 1.16.1, 1.16, 1.15.2, 1.15.1, 1.15, 1.14.4, 1.14.3, 1.14.2, 1.14.1, 1.14, 1.13.2, 1.13.1, 1.13, 1.12.2, 1.12.1, 1.12, 1.11.2, 1.11.1, 1.11, 1.10.2, 1.10.1, 1.10, 1.9.4, 1.9.3, 1.9.2, 1.9.1, 1.9, 1.8.9, 1.8.8
-minecraft_version_range=1.8-1.21.9
-velocity_version=3.3
+minecraft_versions=26.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1, 1.21, 1.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20, 1.19.4, 1.19.3, 1.19.2, 1.19.1, 1.19, 1.18.2, 1.18.1, 1.18, 1.17.1, 1.17, 1.16.5, 1.16.4, 1.16.3, 1.16.2, 1.16.1, 1.16, 1.15.2, 1.15.1, 1.15, 1.14.4, 1.14.3, 1.14.2, 1.14.1, 1.14, 1.13.2, 1.13.1, 1.13, 1.12.2, 1.12.1, 1.12, 1.11.2, 1.11.1, 1.11, 1.10.2, 1.10.1, 1.10, 1.9.4, 1.9.3, 1.9.2, 1.9.1, 1.9, 1.8.9, 1.8.8
+minecraft_version_range=1.8-26.1.2
+velocity_version=3.4-3.5