Exclude CODEOWNERS from language statistics

Add CODEOWNERS (one staff approval)
No-op update checker
2026-10-27 08:25:14 -04:00 · 2026-10-27 08:25:14 -04:00 · 2026-06-17 04:12:41 -04:00 · 2026-03-25 12:59:10 -04:00 · 2026-03-25 10:16:10 -04:00 · 2026-03-25 05:22:35 -04:00
585 changed files with 456325 additions and 8993 deletions
@@ -0,0 +1,6 @@
+[*.java]
+indent_style = space
+indent_size = 4
+ij_continuation_indent_size = 8
+ij_java_names_count_to_use_import_on_demand = 9999
+ij_java_class_count_to_use_import_on_demand = 9999
@@ -0,0 +1 @@
+.gitea/CODEOWNERS linguist-detectable=false
@@ -0,0 +1,3 @@
+# Pull requests request review from the eligible staff team(s).
+# One approval from either an Admin or Developer satisfies branch protection.
+*   @trueog/Admins @trueog/Developers
@@ -10,13 +10,13 @@ jobs:
      contents: read

    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5

      - name: Validate gradle wrapper
-        uses: gradle/actions/wrapper-validation@v3
+        uses: gradle/actions/wrapper-validation@v5

      - name: Set up JDK 21
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
        with:
          java-version: '21'
          distribution: 'temurin'
@@ -31,40 +31,40 @@ jobs:
        uses: actions/upload-artifact@v4
        with:
          name: api-build
-          path: api/build/libs
+          path: build/libs/packetevents-api-*.jar

      - name: Upload build artifacts spigot
        uses: actions/upload-artifact@v4
        with:
          name: spigot-build
-          path: spigot/build/libs
+          path: build/libs/packetevents-spigot-*.jar

      - name: Upload build artifacts netty-common
        uses: actions/upload-artifact@v4
        with:
          name: netty-common-build
-          path: netty-common/build/libs
+          path: build/libs/packetevents-netty-common-*.jar

      - name: Upload build artifacts bungeecord
        uses: actions/upload-artifact@v4
        with:
          name: bungeecord-build
-          path: bungeecord/build/libs
+          path: build/libs/packetevents-bungeecord-*.jar

      - name: Upload build artifacts velocity
        uses: actions/upload-artifact@v4
        with:
          name: velocity-build
-          path: velocity/build/libs
+          path: build/libs/packetevents-velocity-*.jar

      - name: Upload build artifacts fabric
        uses: actions/upload-artifact@v4
        with:
          name: fabric-build
-          path: fabric/build/libs
+          path: build/libs/packetevents-fabric-*.jar

      - name: Upload build artifacts sponge
        uses: actions/upload-artifact@v4
        with:
          name: sponge-build
-          path: sponge/build/libs
+          path: build/libs/packetevents-sponge-*.jar
@@ -0,0 +1,51 @@
+name: Release
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    name: Publish Release
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Validate gradle wrapper
+        uses: gradle/actions/wrapper-validation@v5
+
+      - name: Setup java 21
+        uses: actions/setup-java@v5
+        with:
+          java-version: 21
+          distribution: temurin
+
+      - name: Prepare gradle
+        run: ./gradlew printVersion --no-daemon
+
+      - name: Extract changelog
+        id: changelog
+        run: |
+          OUTPUT_DELIMITER="$(uuidgen)"
+          echo "changelog<<$OUTPUT_DELIMITER" >> "$GITHUB_OUTPUT"
+          
+          # extract tag name and use it to get changelog section
+          TAG_NAME="v$(./gradlew -q --no-daemon printVersion)"
+          awk -v tag="${TAG_NAME}" '
+            $1 == "!!!!!" && $2 == tag {found=1; next}
+            $1 == "!!!!!" && found {exit}
+            found
+          ' CHANGELOG.md >> "$GITHUB_OUTPUT"
+          
+          # end output
+          echo "$OUTPUT_DELIMITER" >> "$GITHUB_OUTPUT"
+
+      - name: Publish plugin
+        env:
+          GITHUB_API_TOKEN: ${{ github.token }}
+          MODRINTH_API_TOKEN: ${{ secrets.MODRINTH_PUBLISH_TOKEN }}
+          CHANGELOG: ${{ steps.changelog.outputs.changelog }}
+        run: ./gradlew publishMods --no-daemon -PnoDryPublish
@@ -126,3 +126,5 @@ run/

 # Build Source Kotlin
 /buildSrc/.kotlin/
+
+.env
@@ -0,0 +1,451 @@
+!!!!! v2.11.2
+
+# PacketEvents 2.11.2 is finally out! 🎉
+
+This update fixes various bugs. It's encouraged that users update.
+Again, huge thanks to all users who have donated their hard-earned money to PacketEvents since the previous release. It's been received & it's very much appreciated.
+
+Recent donors: PebbleHost, SSomar1607, ipavdev, Suleyman Abulkhasan, frap
+
+Also, thanks to the contributors that made this update possible.
+
+If you intend on donating and do not wish to be mentioned, please add such a note on your donation.
+
+# Announcement 📢⚠️
+
+Visit our website: https://packetevents.com\
+Documentation: https://docs.packetevents.com\
+JavaDocs: https://javadocs.packetevents.com\
+I've released a new YouTube [video](https://youtu.be/G7qYRHpZVIo).
+
+## What's Changed (Summary)
+* Fixed SynchronizedRegistriesHandler issues
+* Fixed various equality/nullability issues with Registry values
+* Explicitly specify 'Locale#ROOT' for all String#toLowerCaser() calls
+* Removed 'end skylight' for 1.21.8 and below
+* Log warning message when failing to uninject from velocity initializer
+* Recommend release builds (and fallback to development builds) to users who run outdated software.
+* Add 'CHAIN' to the 'CHAINS' tag
+* Add new offset(Blockface face, int i) method to Vector3f/d/i classes
+* Fixed 'infiniburn' tag parsing for 1.18.1 and older
+* Fixed unexpected NPE if bukkit entity is null during unsafe lookup
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.11.1...v2.11.2
+
+## If you want to support PacketEvents, consider donating to us on [PayPal](https://paypal.me/retrooperdev) or sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper).
+
+## Maven/Gradle Dependency Setup Guide
+
+**Check it out**: https://docs.packetevents.com/introduction/development-setup/
+
+
+!!!!! v2.11.1
+
+# PacketEvents 2.11.1 is finally out! 🎉
+
+This update fixes various bugs. It's encouraged that users update.
+Thanks to all users who donated after the previous release announcement. It's been received & it's appreciated.
+
+Recent donors: TrekCraft, 3add, Vadim Soudé
+
+If you intend on donating and do not wish to be mentioned, please add such a note on your donation.
+
+# Brief Announcement 📢⚠️
+
+### Visit our website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+* Fixed 'Can't resolve 'minecraft:day' in 'minecraft:timeline' for V_1_21_11'
+* Fixed decoding & encoding for WrapperLoginServerPluginRequest & WrapperLoginClientPluginResponse 
+* Improve StateTypes testing
+* Added system property packetevents.debug.nbt-codec-trace
+* Fixed Sound Codec
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.11.0...v2.11.1
+
+## If you want to support PacketEvents, consider donating to us on [PayPal](https://paypal.me/retrooperdev) or sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.11.0
+
+# PacketEvents 2.11.0 is finally out! 🎉
+
+This update adds support for Minecraft 1.21.11.
+
+# Brief Announcement 📢⚠️
+
+### Visit our website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Added support for Minecraft 1.21.11
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.10.1...v2.11.0
+
+## If you want to support PacketEvents, consider donating to us on [PayPal](https://paypal.me/retrooperdev) or sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.10.1
+
+# PacketEvents 2.10.1 is finally out! 🎉
+
+This update includes some bug fixes.
+
+# Brief Announcement 📢⚠️
+
+### Visit our website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Fixed for certain particle types on 1.21.9 & 1.21.10 Minecraft
+* Fixed the bee's component on 1.21.9 & 1.21.10 Minecraft
+* Correction of 'mul' calculation in LpVector3d
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.10.0...v2.10.1
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.10.0
+
+# PacketEvents 2.10.0 is finally out! 🎉
+
+This update includes critical bug fixes & minor additions to the API.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Added 1.21.9 & 1.21.10 support
+* Various bug fixes (such as TPS reading, PlayerModelType reading/writing, and more)
+* Update adventure API
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.9.5...v2.10.0
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.9.5
+
+# PacketEvents 2.9.5 is out now! 🎉
+
+This update includes critical bug fixes & minor additions to the API.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Injector bug fix (for Spigot)
+* WolfVariant issue fixed
+* Chunk Data error fixed
+* NBT tag issues fixed
+* Direction Y/Z axis being swapped fixed
+* Added WrappedBlockState to constructor of WrapperPlayServerBlockChange
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.9.4...v2.9.5
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.9.4
+
+# PacketEvents 2.9.4 is out now! 🎉
+
+This update includes minor bug fixes & minor additions to the API.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Added SpigotConversionUtil#getEntityMetadata to retrieve metadata from a Bukkit entity.
+* Fixed outdated 1.8 Spigot forks from being unable to load on PacketEvents.
+* Fixed WrapperPlayServerWorldBorder for versions lower than 1.12.
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.9.3...v2.9.4
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.9.3
+
+# PacketEvents 2.9.3 is out now! 🎉
+
+This is an update that adds support for Minecraft 1.21.8 server builds.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Added support for 1.21.8 Minecraft server builds.
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.9.2...v2.9.3
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.9.2
+
+# PacketEvents 2.9.2 is out now! 🎉
+
+This is a patch update that fixes issues with UserLoginEvent (which previously contained null user data) and with importing Adventure serializers.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed (Summary)
+
+* Added support for 1.7.2+ Minecraft protocol (useful for proxies)
+* Fixed UserLoginEvent. It is now (always) triggered by PlayerJoinEvent to prevent User instances from containing null data.
+* Fixed importing Adventure serializers.
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.9.1...v2.9.2
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.9.1
+
+# PacketEvents 2.9.1 is out now! 🎉
+
+This is a hotfix patch update to fix issues with 2.9.0 release assets. See below for the 2.9.0 changelog.
+
+### New update now supports Minecraft version 1.21.6 & 1.21.7. We suggest that you update, as numerous bugs have been fixed.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed? (Summary)
+
+* Added 1.21.6 support
+* Added 1.21.7 support
+* Bug fixes
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.8.0...v2.9.1
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.9.0
+
+# PacketEvents 2.9.0 is out now! 🎉
+
+### New update now supports Minecraft version 1.21.6 & 1.21.7. We suggest that you update, as numerous bugs have been fixed.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed? (Summary)
+
+* Added 1.21.6 support
+* Added 1.21.7 support
+* Bug fixes
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.8.0...v2.9.0
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.8.0
+
+# PacketEvents 2.8.0 is out now! 🎉
+
+### New update now supports Minecraft version 1.21.5. Please update, as numerous bugs have been fixed.
+
+# Brief Announcement 📢⚠️
+
+### We have our very own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed? (Summary)
+
+* Added 1.21.5 support
+* Various bugs fixed
+
+**View Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.7.0...v2.8.0
+
+## Contributors 🏅
+
+This update wouldn't be possible without these contributors ❤️: @booky10, @Axionize, @Bram1903, @ManInMyVan, @ytnoos,
+@AoElite, @HaHaWTH, @divinepablo, @scienziatopazzo, @bridgelol, @MachineBreaker, @Luuzzi, @Beaness, @Rubenicos, @Loyisa
+
+## New Contributors
+
+* @HaHaWTH made their first contribution in https://github.com/retrooper/packetevents/pull/1097
+* @divinepablo made their first contribution in https://github.com/retrooper/packetevents/pull/1098
+* @scienziatopazzo made their first contribution in https://github.com/retrooper/packetevents/pull/1105
+* @bridgelol made their first contribution in https://github.com/retrooper/packetevents/pull/1199
+* @Luuzzi made their first contribution in https://github.com/retrooper/packetevents/pull/1197
+* @Beaness made their first contribution in https://github.com/retrooper/packetevents/pull/1212
+* @Rubenicos made their first contribution in https://github.com/retrooper/packetevents/pull/1162
+* @Loyisa made their first contribution in https://github.com/retrooper/packetevents/pull/1220
+
+## If you want to support PacketEvents, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.7.0
+
+# PacketEvents v2.7.0 is out now! 🎉
+
+### New update with support of the latest Minecraft version. In addition to that, countless bugs were fixed.
+
+# Brief Announcement 📢⚠️
+
+### We have our own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed? (Summary)
+
+* Added 1.21.4 support
+* Fix: Potion contents item component for 1.21.2/1.21.3
+* Fix: NPC objects to have unique server team names
+* Add missing ServerVersion#V_1_9_1
+* Validation checks added for window click type
+
+**Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.6.0...v2.7.0
+
+## New Contributors
+
+* @Axionize made their first contribution in https://github.com/retrooper/packetevents/pull/1048
+* @ShreyasAyyengar made their first contribution in https://github.com/retrooper/packetevents/pull/1044
+* @mfnalex made their first contribution in https://github.com/retrooper/packetevents/pull/1076
+
+## Contributors 🏅
+
+This update wouldn't be possible without these contributors ❤️: @booky10, @rafi67000, @ShreyasAyyengar, @AoElite,
+@Tecnio, @Axionize, @mfnalex
+
+### If you want to support PacketEvents, and any upcoming events we plan for the future, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!! v2.6.0
+
+# PacketEvents v2.6.0 is out now! 🎉
+
+### New update with support of new platforms & the latest Minecraft version. In addition to that, countless bugs were fixed.
+
+# Brief Announcement 📢⚠️
+
+### We have our own website: https://packetevents.com
+
+### Documentation: https://docs.packetevents.com
+
+### JavaDocs: https://javadocs.packetevents.com
+
+## What's Changed? (Summary)
+
+* 1.21.2 and 1.21.3 Minecraft support
+* Sponge support added
+* Fabric support added (also server-side)
+* Utilizing the proper bStats API
+* Registry element issues fixed
+* Mappings issues fixed
+* AdvancedSlimePaper issues fixed
+* BungeeCord issues fixed
+
+### **Full Changelog**: https://github.com/retrooper/packetevents/compare/v2.5.0...v2.6.0
+
+## Contributors 🏅
+
+This update wouldn't be possible without these contributors ❤️: @booky10, @ManInMyVan, @SamB440, @rafi67000, @Bram1903,
+@AbhigyaKrishna
+
+### If you want to support PacketEvents, and any upcoming events we plan for the future, consider sponsoring us on [GitHub Sponsors](https://github.com/sponsors/retrooper)
+
+## Maven/Gradle Dependency
+
+### **Check out**: https://docs.packetevents.com/getting-started
+
+!!!!!
@@ -1,7 +1,7 @@
 <!--suppress HtmlDeprecatedAttribute -->
 <div align="center">
    <h2><i>PacketEvents</i></h2>
-    <h3><i>A powerful networking library for Minecraft packet processing and manipulation.</i></h3>
+    <h3>PacketEvents is a protocol library tailored to Minecraft Java Edition, designed to facilitate the processing and transmission of packets.</h3>
    <a href="https://github.com/retrooper/packetevents/actions"><img src="https://img.shields.io/github/actions/workflow/status/retrooper/packetevents/gradle-publish.yml?style=for-the-badge&logo=github"></a>
    <a href="https://discord.gg/DVHxPPxHZc"><img src="https://img.shields.io/discord/721686193061888071?color=5562e9&logo=discord&logoColor=white&style=for-the-badge"></a>
    <img src="https://img.shields.io/github/license/retrooper/packetevents?style=for-the-badge&logo=github">
@@ -11,11 +11,11 @@
 <h3>Resources</h3>

 - [Read documentation](https://docs.packetevents.com/)
-    - [Getting Started](https://docs.packetevents.com/getting-started)
+    - [Getting Started](https://docs.packetevents.com/development-setup)
    - [JavaDocs](https://javadocs.packetevents.com)
 - [Releases](https://github.com/retrooper/packetevents/releases/)
-    - [GitHub](https://github.com/retrooper/packetevents/releases/)
    - [Modrinth](https://modrinth.com/plugin/packetevents)
+    - [GitHub](https://github.com/retrooper/packetevents/releases/)
    - [SpigotMC](https://www.spigotmc.org/resources/packetevents-api.80279/)
 - [Development Builds](https://ci.codemc.io/job/retrooper/job/packetevents)
 - [Statistics](https://bstats.org/plugin/bukkit/packetevents/11327)
@@ -28,8 +28,6 @@

 <a href="https://www.ej-technologies.com"><img src="https://www.ej-technologies.com/images/product_banners/jprofiler_small.png"><br>

-<a href="https://github.com/radstevee"><img src="https://github.com/radstevee.png" width="50px" alt="radstevee"/></a><br>
-
 <h3>Credits</h3>

 <i>Here are some projects that we are heavily inspired by, thus we have integrated</i>\
@@ -31,15 +31,6 @@ dependencies {
    }
    compileOnly(libs.gson)

-    testImplementation(libs.bundles.adventure)
-    testImplementation(project(":patch:adventure-text-serializer-gson"))
-    testImplementation(libs.adventure.text.serializer.legacy)
-    testImplementation(project(":netty-common"))
-    testImplementation(testlibs.mockbukkit)
-    testImplementation(testlibs.slf4j)
-    testImplementation(testlibs.bundles.junit)
-    testImplementation(libs.netty)
-    testImplementation(libs.classgraph)
 }

 mappingCompression {
@@ -83,10 +74,6 @@ tasks {
        packageName = "com.github.retrooper.packetevents.util"
    }

-    test {
-        useJUnitPlatform()
-    }
-
    shadowJar {
        exclude {
            val path = it.path
@@ -18,8 +18,7 @@

 package com.github.retrooper.packetevents.event;

-import com.github.retrooper.packetevents.event.PacketEvent;
-import com.github.retrooper.packetevents.event.PacketListenerAbstract;
+import org.jspecify.annotations.NullMarked;

 /**
 * The {@link PacketEvent} implements this interface.
@@ -31,7 +30,9 @@ import com.github.retrooper.packetevents.event.PacketListenerAbstract;
 * @author retrooper
 * @since 1.8
 */
+@NullMarked
 public interface CallableEvent {
+
    default void call(PacketListenerCommon listener) {
        listener.onPacketEventExternal((PacketEvent) this);
    }
@@ -76,7 +76,7 @@ public class EventManager {
     * be the final decider whether the event has been cancelled or not.
     *
     * @param event                  {@link PacketEvent}
-     * @param postCallListenerAction The action to be ran after all the listeners have finished processing
+     * @param postCallListenerAction The action to be run after all the listeners have finished processing
     */
    public void callEvent(PacketEvent event, @Nullable Runnable postCallListenerAction) {
        for (PacketListenerCommon listener : listeners) {
@@ -84,7 +84,7 @@ public class EventManager {
                event.call(listener);
            } catch (Exception t) {
                // ignore handshake exceptions
-                if (t.getClass() != InvalidHandshakeException.class) {
+                if (t.getClass() != InvalidHandshakeException.class && (t.getCause() == null || t.getCause().getClass() != InvalidHandshakeException.class)) {
                    PacketEvents.getAPI().getLogger().log(Level.WARNING, "PacketEvents caught an unhandled exception while calling your listener.", t);
                }
            }
@@ -21,6 +21,7 @@ package com.github.retrooper.packetevents.event;

 import com.github.retrooper.packetevents.PacketEvents;
 import com.github.retrooper.packetevents.util.TimeStampMode;
+import org.jspecify.annotations.NullMarked;

 /**
 * An event in both of PacketEvents' event systems.
@@ -28,7 +29,9 @@ import com.github.retrooper.packetevents.util.TimeStampMode;
 * @author retrooper
 * @since 1.2.6
 */
+@NullMarked
 public abstract class PacketEvent implements CallableEvent {
+
    private final long timestamp;

    public PacketEvent() {
@@ -60,4 +63,4 @@ public abstract class PacketEvent implements CallableEvent {
    public void callPacketEventExternal(PacketListenerCommon listener) {
        listener.onPacketEventExternal(this);
    }
-}
+}
@@ -24,17 +24,25 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.PacketSide;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketReceiveEvent extends ProtocolPacketEvent {
-    protected PacketReceiveEvent(Object channel, User user, Object player, Object rawByteBuf,
-                                 boolean autoProtocolTranslation) throws PacketProcessException {
+
+    protected PacketReceiveEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(PacketSide.CLIENT, channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketReceiveEvent(int packetID, PacketTypeCommon packetType,
-                                 ServerVersion serverVersion,
-                                 Object channel, User user, Object player,
-                                 Object byteBuf) throws PacketProcessException {
+    protected PacketReceiveEvent(
+            int packetID, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetID, packetType, serverVersion,
                channel, user, player, byteBuf);
    }
@@ -46,13 +54,8 @@ public class PacketReceiveEvent extends ProtocolPacketEvent {

    @Override
    public PacketReceiveEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }
 }
@@ -18,32 +18,38 @@

 package com.github.retrooper.packetevents.event;

-import com.github.retrooper.packetevents.event.simple.PacketHandshakeSendEvent;
 import com.github.retrooper.packetevents.exception.PacketProcessException;
 import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.PacketSide;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;

 import java.util.ArrayList;
 import java.util.List;

+@NullMarked
 public class PacketSendEvent extends ProtocolPacketEvent {
-    private List<Runnable> tasksAfterSend = null;

-    protected PacketSendEvent(Object channel, User user, Object player, Object rawByteBuf,
-                              boolean autoProtocolTranslation) throws PacketProcessException {
+    private @Nullable List<Runnable> tasksAfterSend = null;
+
+    protected PacketSendEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(PacketSide.SERVER, channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketSendEvent(int packetID, PacketTypeCommon packetType,
-                              ServerVersion serverVersion,
-                              Object channel, User user,
-                              Object player, Object byteBuf) throws PacketProcessException {
-        super(packetID, packetType,
-                serverVersion,
-                channel, user, player, byteBuf);
+    protected PacketSendEvent(
+            int packetID, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
+        super(packetID, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
@@ -65,13 +71,8 @@ public class PacketSendEvent extends ProtocolPacketEvent {

    @Override
    public PacketSendEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketSendEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketSendEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }
 }
@@ -18,17 +18,22 @@

 package com.github.retrooper.packetevents.event;

+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;
+
 /**
 * Every event that has an associated player is recommended to implement this interface.
 *
 * @author retrooper
 * @since 1.6.9
 */
+@NullMarked
 public interface PlayerEvent {
+
    /**
     * Associated player.
     *
     * @return Player.
     */
-    <T> T getPlayer();
+    <T> @UnknownNullability T getPlayer();
 }
@@ -32,40 +32,50 @@ import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.protocol.player.User;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;

 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.util.ArrayList;
 import java.util.List;

+@NullMarked
 public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerEvent, CancellableEvent, UserEvent {
-    private final Object channel;
-    private final ConnectionState connectionState;
-    private final User user;
-    private final Object player;
-    private Object byteBuf;
+
    private final int packetID;
    private final PacketTypeCommon packetType;
    private ServerVersion serverVersion;
+
+    private final Object channel;
+    private final ConnectionState connectionState;
+    private final User user;
+
+    private @UnknownNullability Object player;
+    private Object byteBuf;
+
    private boolean cancel;
-    private PacketWrapper<?> lastUsedWrapper;
-    private List<Runnable> postTasks = null;
+    private @Nullable PacketWrapper<?> lastUsedWrapper;
+    private @Nullable List<Runnable> postTasks = null;
+
    private boolean cloned;
    private boolean needsReEncode = PacketEvents.getAPI().getSettings().reEncodeByDefault();

-    public ProtocolPacketEvent(PacketSide packetSide, Object channel,
-                               User user, Object player, Object byteBuf,
-                               boolean autoProtocolTranslation) throws PacketProcessException {
+    public ProtocolPacketEvent(
+            PacketSide packetSide, Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        this.channel = channel;
        this.user = user;
        this.player = player;
+
        if (autoProtocolTranslation || user.getClientVersion() == null) {
            this.serverVersion = PacketEvents.getAPI().getServerManager().getVersion();
        } else {
-            //TODO Optimize
-            this.serverVersion = user.getClientVersion().toServerVersion();
+            this.serverVersion = user.getPacketVersion().toServerVersion();
        }

        this.byteBuf = byteBuf;
@@ -78,22 +88,25 @@ public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerE
        } catch (Exception e) {
            throw new PacketProcessException("Failed to read the Packet ID of a packet. (Size: " + size + ")");
        }
+
        ClientVersion version = serverVersion.toClientVersion();
-        ConnectionState state = packetSide == PacketSide.CLIENT ? user.getDecoderState() : user.getEncoderState();
-        this.packetType = PacketType.getById(packetSide, state,
-                version, packetID);
-        if (this.packetType == null) {
+        this.connectionState = packetSide == PacketSide.CLIENT ? user.getDecoderState() : user.getEncoderState();
+        PacketTypeCommon packetType = PacketType.getById(packetSide, this.connectionState, version, this.packetID);
+        if (packetType == null) {
            // mojang messed up and keeps sending disconnect packets in the wrong protocol state
            if (PacketType.getById(packetSide, ConnectionState.PLAY, version, packetID) == PacketType.Play.Server.DISCONNECT) {
                throw new InvalidDisconnectPacketSend();
            }
            throw new PacketProcessException("Failed to map the Packet ID " + packetID + " to a PacketType constant. Bound: " + packetSide.getOpposite() + ", Connection state: " + user.getDecoderState() + ", Server version: " + serverVersion.getReleaseName());
        }
-        this.connectionState = state;
+        this.packetType = packetType;
    }

-    public ProtocolPacketEvent(int packetID, PacketTypeCommon packetType, ServerVersion serverVersion, Object channel,
-                               User user, Object player, Object byteBuf) {
+    public ProtocolPacketEvent(
+            int packetID, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) {
        this.channel = channel;
        this.user = user;
        this.player = player;
@@ -104,7 +117,7 @@ public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerE

        this.connectionState = (packetType != null && packetType.getSide() == PacketSide.SERVER)
                ? user.getEncoderState() : user.getDecoderState();
-        cloned = true;
+        this.cloned = true;
    }

    public void markForReEncode(boolean needsReEncode) {
@@ -115,7 +128,6 @@ public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerE
        return needsReEncode;
    }

-
    public boolean isClone() {
        return cloned;
    }
@@ -141,10 +153,16 @@ public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerE
    }

    @Override
-    public <T> T getPlayer() {
+    public <T> @UnknownNullability T getPlayer() {
        return (T) player;
    }

+    @Deprecated
+    @ApiStatus.Internal
+    public void setPlayer(Object player) {
+        this.player = player;
+    }
+
    /**
     * Gets the connection state this packet has been sent/received in.
     */
@@ -152,14 +170,13 @@ public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerE
        return connectionState;
    }

-    //TODO Possibly put clientversion inside User class and remove here
    @Deprecated
    public ClientVersion getClientVersion() {
        return user.getClientVersion();
    }

    @Deprecated
-    public void setClientVersion(@NotNull ClientVersion clientVersion) {
+    public void setClientVersion(ClientVersion clientVersion) {
        PacketEvents.getAPI().getLogManager().debug("Setting client version with deprecated method " + clientVersion.getReleaseName());
        user.setClientVersion(clientVersion);
    }
@@ -168,7 +185,8 @@ public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerE
        return serverVersion;
    }

-    public void setServerVersion(@NotNull ServerVersion serverVersion) {
+    @Deprecated
+    public void setServerVersion(ServerVersion serverVersion) {
        this.serverVersion = serverVersion;
    }

@@ -19,8 +19,11 @@
 package com.github.retrooper.packetevents.event;

 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class UserConnectEvent extends PacketEvent implements CancellableEvent, UserEvent {

-public class UserConnectEvent extends PacketEvent implements CancellableEvent, UserEvent{
    private final User user;
    private boolean cancelled;

@@ -19,8 +19,11 @@
 package com.github.retrooper.packetevents.event;

 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class UserDisconnectEvent extends PacketEvent implements UserEvent {
+
    private final User user;

    public UserDisconnectEvent(User user) {
@@ -19,6 +19,7 @@
 package com.github.retrooper.packetevents.event;

 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jspecify.annotations.NullMarked;

 /**
 * Event that involves users.
@@ -26,6 +27,8 @@ import com.github.retrooper.packetevents.protocol.player.User;
 * @author retrooper
 * @since 2.0.0
 */
+@NullMarked
 public interface UserEvent {
+
    User getUser();
 }
@@ -19,8 +19,11 @@
 package com.github.retrooper.packetevents.event;

 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class UserLoginEvent extends PacketEvent implements CallableEvent, UserEvent, PlayerEvent {
+
    private final User user;
    private final Object player;

@@ -25,32 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketConfigReceiveEvent extends PacketReceiveEvent {

-    public PacketConfigReceiveEvent(Object channel, User user,
-                                    Object player, Object rawByteBuf,
-                                    boolean autoProtocolTranslation) throws PacketProcessException {
+    public PacketConfigReceiveEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketConfigReceiveEvent(int packetId, PacketTypeCommon packetType,
-                                       ServerVersion serverVersion,
-                                       Object channel,
-                                       User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketConfigReceiveEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketConfigReceiveEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketConfigReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketConfigReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Configuration.Client getPacketType() {
@@ -25,32 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketConfigSendEvent extends PacketSendEvent {

-    public PacketConfigSendEvent(Object channel, User user,
-                                 Object player, Object rawByteBuf,
-                                 boolean autoProtocolTranslation) throws PacketProcessException {
+    public PacketConfigSendEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketConfigSendEvent(int packetId, PacketTypeCommon packetType,
-                                    ServerVersion serverVersion,
-                                    Object channel,
-                                    User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketConfigSendEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketConfigSendEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketConfigSendEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketConfigSendEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Configuration.Server getPacketType() {
@@ -25,31 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketHandshakeReceiveEvent extends PacketReceiveEvent {
-    public PacketHandshakeReceiveEvent(Object channel, User user,
-                                       Object player, Object rawByteBuf,
-                                       boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketHandshakeReceiveEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketHandshakeReceiveEvent(int packetId, PacketTypeCommon packetType,
-                                          ServerVersion serverVersion,
-                                          Object channel,
-                                          User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketHandshakeReceiveEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketHandshakeReceiveEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketHandshakeReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketHandshakeReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Handshaking.Client getPacketType() {
@@ -7,31 +7,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketHandshakeSendEvent extends PacketSendEvent {
-    public PacketHandshakeSendEvent(Object channel, User user,
-                                       Object player, Object rawByteBuf,
-                                       boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketHandshakeSendEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketHandshakeSendEvent(int packetId, PacketTypeCommon packetType,
-                                          ServerVersion serverVersion,
-                                          Object channel,
-                                          User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketHandshakeSendEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketHandshakeSendEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketHandshakeSendEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketHandshakeSendEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Handshaking.Client getPacketType() {
@@ -25,31 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketLoginReceiveEvent extends PacketReceiveEvent {
-    public PacketLoginReceiveEvent(Object channel, User user, Object player,
-                                   Object rawByteBuf,
-                                   boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketLoginReceiveEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketLoginReceiveEvent(int packetId, PacketTypeCommon packetType,
-                                      ServerVersion serverVersion,
-                                      Object channel,
-                                      User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketLoginReceiveEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketLoginReceiveEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketLoginReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketLoginReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }


@@ -25,30 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketLoginSendEvent extends PacketSendEvent {
-    public PacketLoginSendEvent(Object channel, User user, Object player, Object rawByteBuf,
-                                boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketLoginSendEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketLoginSendEvent(int packetId, PacketTypeCommon packetType,
-                                   ServerVersion serverVersion,
-                                   Object channel,
-                                   User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketLoginSendEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketLoginSendEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketLoginSendEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketLoginSendEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Login.Server getPacketType() {
@@ -25,31 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketPlayReceiveEvent extends PacketReceiveEvent {
-    public PacketPlayReceiveEvent(Object channel, User user,
-                                  Object player, Object rawByteBuf,
-                                  boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketPlayReceiveEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketPlayReceiveEvent(int packetId, PacketTypeCommon packetType,
-                                     ServerVersion serverVersion,
-                                     Object channel,
-                                     User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketPlayReceiveEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketPlayReceiveEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketPlayReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketPlayReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Play.Client getPacketType() {
@@ -25,31 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketPlaySendEvent extends PacketSendEvent {
-    public PacketPlaySendEvent(Object channel, User user,
-                               Object player, Object rawByteBuf,
-                               boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketPlaySendEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketPlaySendEvent(int packetId, PacketTypeCommon packetType,
-                                  ServerVersion serverVersion,
-                                  Object channel,
-                                  User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketPlaySendEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketPlaySendEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketPlaySendEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketPlaySendEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Play.Server getPacketType() {
@@ -25,31 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketStatusReceiveEvent extends PacketReceiveEvent {
-    public PacketStatusReceiveEvent(Object channel, User user,
-                                    Object player, Object rawByteBuf,
-                                    boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketStatusReceiveEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketStatusReceiveEvent(int packetId, PacketTypeCommon packetType,
-                                  ServerVersion serverVersion,
-                                  Object channel,
-                                  User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketStatusReceiveEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketStatusReceiveEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketStatusReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketStatusReceiveEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }

    public PacketType.Status.Client getPacketType() {
@@ -25,30 +25,33 @@ import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public class PacketStatusSendEvent extends PacketSendEvent {
-    public PacketStatusSendEvent(Object channel, User user, Object player, Object rawByteBuf,
-                                 boolean autoProtocolTranslation) throws PacketProcessException {
+
+    public PacketStatusSendEvent(
+            Object channel, User user,
+            @UnknownNullability Object player, Object rawByteBuf,
+            boolean autoProtocolTranslation
+    ) throws PacketProcessException {
        super(channel, user, player, rawByteBuf, autoProtocolTranslation);
    }

-    protected PacketStatusSendEvent(int packetId, PacketTypeCommon packetType,
-                                    ServerVersion serverVersion,
-                                    Object channel,
-                                    User user, Object player, Object byteBuf) throws PacketProcessException {
+    protected PacketStatusSendEvent(
+            int packetId, PacketTypeCommon packetType, ServerVersion serverVersion,
+            Object channel, User user,
+            @UnknownNullability Object player, Object byteBuf
+    ) throws PacketProcessException {
        super(packetId, packetType, serverVersion, channel, user, player, byteBuf);
    }

    @Override
    public PacketStatusSendEvent clone() {
-        try {
-            Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
-            return new PacketStatusSendEvent(getPacketId(), getPacketType(), getServerVersion(),
-                    getChannel(), getUser(), getPlayer(), clonedBuffer);
-        } catch (PacketProcessException e) {
-            e.printStackTrace();
-        }
-        return null;
+        Object clonedBuffer = ByteBufHelper.retainedDuplicate(getByteBuf());
+        return new PacketStatusSendEvent(getPacketId(), getPacketType(), getServerVersion(),
+                getChannel(), getUser(), getPlayer(), clonedBuffer);
    }


@@ -2,4 +2,9 @@ package com.github.retrooper.packetevents.exception;

 public class CancelPacketException extends RuntimeException {
    public static final CancelPacketException INSTANCE = new CancelPacketException();
+
+    @Override
+    public synchronized Throwable fillInStackTrace() {
+        return this;
+    }
 }
@@ -32,12 +32,15 @@ import com.github.retrooper.packetevents.protocol.player.User;
 import com.github.retrooper.packetevents.protocol.player.UserProfile;
 import com.github.retrooper.packetevents.util.LogManager;
 import com.github.retrooper.packetevents.util.mappings.SynchronizedRegistriesHandler;
+import com.github.retrooper.packetevents.wrapper.configuration.server.WrapperConfigServerConfigurationEnd;
 import com.github.retrooper.packetevents.wrapper.configuration.server.WrapperConfigServerRegistryData;
 import com.github.retrooper.packetevents.wrapper.handshaking.client.WrapperHandshakingClientHandshake;
 import com.github.retrooper.packetevents.wrapper.login.server.WrapperLoginServerLoginSuccess;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerJoinGame;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerRespawn;
+import org.jetbrains.annotations.ApiStatus;

+@ApiStatus.Internal
 public class InternalPacketListener extends PacketListenerAbstract {

    public InternalPacketListener() {
@@ -68,7 +71,9 @@ public class InternalPacketListener extends PacketListenerAbstract {
                PacketEvents.getAPI().getProtocolManager().setChannel(profile.getUUID(), channel);
            }

-            PacketEvents.getAPI().getLogManager().debug("Mapped player UUID with their channel.");
+            if (PacketEvents.getAPI().getLogManager().isDebug()) {
+                PacketEvents.getAPI().getLogManager().debug("Mapped player UUID with their channel " + profile.getUUID() + " " + channel);
+            }

            // Switch the user's connection state to new state, but the variable event.getConnectionState() remains LOGIN
            // We switch user state immediately to remain in sync with vanilla, allowing you to encode packets immediately
@@ -86,12 +91,11 @@ public class InternalPacketListener extends PacketListenerAbstract {
            WrapperConfigServerRegistryData packet = new WrapperConfigServerRegistryData(event);

            if (packet.getElements() != null) { // 1.20.2 to 1.20.5
-                SynchronizedRegistriesHandler.handleRegistry(user, packet.getServerVersion().toClientVersion(),
+                SynchronizedRegistriesHandler.handleRegistry(user, packet,
                        packet.getRegistryKey(), packet.getElements());
            }
            if (packet.getRegistryData() != null) { // since 1.20.5
-                SynchronizedRegistriesHandler.handleLegacyRegistries(user, packet.getServerVersion()
-                        .toClientVersion(), packet.getRegistryData());
+                SynchronizedRegistriesHandler.handleLegacyRegistries(user, packet, packet.getRegistryData());
            }
        }

@@ -101,8 +105,9 @@ public class InternalPacketListener extends PacketListenerAbstract {
            user.setEntityId(joinGame.getEntityId());

            if (joinGame.getDimensionCodec() != null) { // 1.16 to 1.20.1
-                SynchronizedRegistriesHandler.handleLegacyRegistries(user, joinGame.getServerVersion().toClientVersion(),
+                SynchronizedRegistriesHandler.handleLegacyRegistries(user, joinGame,
                        joinGame.getDimensionCodec());
+                user.finalizeRegistries(joinGame);
            }

            user.setDimensionType(joinGame.getDimensionType());
@@ -116,6 +121,7 @@ public class InternalPacketListener extends PacketListenerAbstract {
            user.setEncoderState(ConnectionState.CONFIGURATION);
        } else if (event.getPacketType() == PacketType.Configuration.Server.CONFIGURATION_END) {
            user.setEncoderState(ConnectionState.PLAY);
+            user.finalizeRegistries(new WrapperConfigServerConfigurationEnd(event));
        }
    }

@@ -32,7 +32,8 @@ import org.jetbrains.annotations.NotNull;
 */
 public enum ServerVersion {
    //TODO Rename to MinecraftVersion?
-    V_1_7_10(5),
+    V_1_7_2(4), V_1_7_4(4), V_1_7_5(4),
+    V_1_7_6(5), V_1_7_7(5), V_1_7_8(5), V_1_7_9(5), V_1_7_10(5),
    V_1_8(47), V_1_8_3(47), V_1_8_8(47),
    V_1_9(107), V_1_9_1(108), V_1_9_2(109), V_1_9_4(110),
    //1.10 and 1.10.1 are redundant
@@ -49,8 +50,8 @@ public enum ServerVersion {
    V_1_19(759), V_1_19_1(760), V_1_19_2(760), V_1_19_3(761), V_1_19_4(762),
    //1.20 and 1.20.1 have the same protocol version. 1.20.3 and 1.20.4 have the same protocol version. 1.20.5 and 1.20.6 have the same protocol version
    V_1_20(763), V_1_20_1(763), V_1_20_2(764), V_1_20_3(765), V_1_20_4(765), V_1_20_5(766), V_1_20_6(766),
-    //1.21 and 1.21.1 have the same protocol version. 1.21.2 and 1.21.3 have the same protocol version
-    V_1_21(767), V_1_21_1(767), V_1_21_2(768), V_1_21_3(768), V_1_21_4(769), V_1_21_5(770),
+    //1.21 and 1.21.1 have the same protocol version. 1.21.2 and 1.21.3 have the same protocol version. 1.21.7 and 1.21.8 have the same protocol version. 1.21.9 and 1.21.10 have the same protocol version
+    V_1_21(767), V_1_21_1(767), V_1_21_2(768), V_1_21_3(768), V_1_21_4(769), V_1_21_5(770), V_1_21_6(771), V_1_21_7(772), V_1_21_8(772), V_1_21_9(773), V_1_21_10(773), V_1_21_11(774),
    //TODO UPDATE Add server version constant
    ERROR(-1, true);

@@ -18,6 +18,8 @@

 package com.github.retrooper.packetevents.manager.server;

+import java.util.Locale;
+
 /**
 * System Operating system.
 *
@@ -36,9 +38,9 @@ public enum SystemOS {
     * @return Operating System.
     */
    public static SystemOS getOSNoCache() {
-        final String os = System.getProperty("os.name").toLowerCase();
+        final String os = System.getProperty("os.name").toLowerCase(Locale.ROOT);
        for (SystemOS sysos : values()) {
-            if (os.contains(sysos.name().toLowerCase())) {
+            if (os.contains(sysos.name().toLowerCase(Locale.ROOT))) {
                return sysos;
            }
        }
@@ -103,6 +103,10 @@ public class ByteBufHelper {
        PacketEvents.getAPI().getNettyManager().getByteBufOperator().writeShort(buffer, value);
    }

+    public static void writeShortLE(Object buffer, int value) {
+        PacketEvents.getAPI().getNettyManager().getByteBufOperator().writeShortLE(buffer, value);
+    }
+
    public static int readMedium(Object buffer) {
        return PacketEvents.getAPI().getNettyManager().getByteBufOperator().readMedium(buffer);
    }
@@ -42,6 +42,7 @@ public interface ByteBufOperator {

    void writeByte(Object buffer, int value);
    void writeShort(Object buffer, int value);
+    void writeShortLE(Object buffer, int value);
    void writeMedium(Object buffer, int value);
    void writeInt(Object buffer, int value);
    void writeLong(Object buffer, long value);
@@ -0,0 +1,144 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.advancements;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Collections;
+import java.util.List;
+
+public class Advancement {
+
+    private @Nullable ResourceLocation parent;
+    private @Nullable AdvancementDisplay display;
+    /**
+     * Removed with 1.20.2
+     */
+    private List<String> criteria;
+    private List<List<String>> requirements;
+    /**
+     * Added with 1.20
+     */
+    private boolean sendsTelemetryData;
+
+    public Advancement(
+            @Nullable ResourceLocation parent,
+            @Nullable AdvancementDisplay display,
+            List<List<String>> requirements,
+            boolean sendsTelemetryData
+    ) {
+        this(parent, display, Collections.emptyList(), requirements, sendsTelemetryData);
+    }
+
+    @ApiStatus.Obsolete
+    public Advancement(
+            @Nullable ResourceLocation parent,
+            @Nullable AdvancementDisplay display,
+            List<String> criteria,
+            List<List<String>> requirements,
+            boolean sendsTelemetryData
+    ) {
+        this.parent = parent;
+        this.display = display;
+        this.criteria = criteria;
+        this.requirements = requirements;
+        this.sendsTelemetryData = sendsTelemetryData;
+    }
+
+    public static Advancement read(PacketWrapper<?> wrapper) {
+        ResourceLocation parentId = wrapper.readOptional(ResourceLocation::read);
+        AdvancementDisplay display = wrapper.readOptional(AdvancementDisplay::read);
+        List<String> criteria = wrapper.getServerVersion().isOlderThan(ServerVersion.V_1_20_2)
+                ? wrapper.readList(PacketWrapper::readString) : null;
+        List<List<String>> requirements = wrapper.readList(
+                ew -> wrapper.readList(PacketWrapper::readString));
+        boolean sendsTelemetryData = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_20)
+                && wrapper.readBoolean();
+        return new Advancement(parentId, display, criteria, requirements, sendsTelemetryData);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, Advancement advancement) {
+        wrapper.writeOptional(advancement.parent, ResourceLocation::write);
+        wrapper.writeOptional(advancement.display, AdvancementDisplay::write);
+        if (wrapper.getServerVersion().isOlderThan(ServerVersion.V_1_20_2)) {
+            wrapper.writeList(advancement.criteria, PacketWrapper::writeString);
+        }
+        wrapper.writeList(advancement.getRequirements(), (ew, anyList) ->
+                ew.writeList(anyList, PacketWrapper::writeString));
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_20)) {
+            wrapper.writeBoolean(advancement.sendsTelemetryData);
+        }
+    }
+
+    public @Nullable ResourceLocation getParent() {
+        return this.parent;
+    }
+
+    public void setParent(@Nullable ResourceLocation parent) {
+        this.parent = parent;
+    }
+
+    public @Nullable AdvancementDisplay getDisplay() {
+        return this.display;
+    }
+
+    public void setDisplay(@Nullable AdvancementDisplay display) {
+        this.display = display;
+    }
+
+    /**
+     * Removed with 1.20.2
+     */
+    public List<String> getCriteria() {
+        return this.criteria;
+    }
+
+    /**
+     * Removed with 1.20.2
+     */
+    public void setCriteria(List<String> criteria) {
+        this.criteria = criteria;
+    }
+
+    public List<List<String>> getRequirements() {
+        return this.requirements;
+    }
+
+    public void setRequirements(List<List<String>> requirements) {
+        this.requirements = requirements;
+    }
+
+    /**
+     * Added with 1.20
+     */
+    public boolean isSendsTelemetryData() {
+        return this.sendsTelemetryData;
+    }
+
+    /**
+     * Added with 1.20
+     */
+    public void setSendsTelemetryData(boolean sendsTelemetryData) {
+        this.sendsTelemetryData = sendsTelemetryData;
+    }
+}
@@ -0,0 +1,168 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.advancements;
+
+import com.github.retrooper.packetevents.protocol.item.ItemStack;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.Nullable;
+
+public final class AdvancementDisplay {
+
+    public static final int FLAG_HAS_BACKGROUND = 0b001;
+    public static final int FLAG_SHOW_TOAST = 0b010;
+    public static final int FLAG_HIDDEN = 0b100;
+
+    private Component title;
+    private Component description;
+    private ItemStack icon;
+    private AdvancementType type;
+    private boolean showToast;
+    private boolean hidden;
+    private @Nullable ResourceLocation background;
+    private float x;
+    private float y;
+
+    public AdvancementDisplay(Component title, Component description, ItemStack icon, AdvancementType type, @Nullable ResourceLocation background, boolean showToast,
+                              boolean hidden, float x, float y) {
+        this.title = title;
+        this.description = description;
+        this.icon = icon;
+        this.type = type;
+        this.showToast = showToast;
+        this.hidden = hidden;
+        this.background = background;
+        this.x = x;
+        this.y = y;
+    }
+
+    public static AdvancementDisplay read(PacketWrapper<?> wrapper) {
+        Component title = wrapper.readComponent();
+        Component description = wrapper.readComponent();
+        ItemStack icon = wrapper.readItemStack();
+        AdvancementType type = wrapper.readEnum(AdvancementType.class);
+        int flags = wrapper.readInt();
+        ResourceLocation background = (flags & FLAG_HAS_BACKGROUND) != 0 ? ResourceLocation.read(wrapper) : null;
+        boolean showToast = (flags & FLAG_SHOW_TOAST) != 0;
+        boolean hidden = (flags & FLAG_HIDDEN) != 0;
+        float x = wrapper.readFloat();
+        float y = wrapper.readFloat();
+        return new AdvancementDisplay(title, description, icon, type, background, showToast, hidden, x, y);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, AdvancementDisplay display) {
+        wrapper.writeComponent(display.title);
+        wrapper.writeComponent(display.description);
+        wrapper.writeItemStack(display.icon);
+        wrapper.writeEnum(display.type);
+        wrapper.writeInt(display.packFlags());
+        if (display.background != null) {
+            ResourceLocation.write(wrapper, display.background);
+        }
+        wrapper.writeFloat(display.x);
+        wrapper.writeFloat(display.y);
+    }
+
+    public int packFlags() {
+        int flags = 0;
+        if (this.background != null) {
+            flags |= FLAG_HAS_BACKGROUND;
+        }
+        if (this.showToast) {
+            flags |= FLAG_SHOW_TOAST;
+        }
+        if (this.hidden) {
+            flags |= FLAG_HIDDEN;
+        }
+        return flags;
+    }
+
+    public Component getTitle() {
+        return this.title;
+    }
+
+    public void setTitle(Component title) {
+        this.title = title;
+    }
+
+    public Component getDescription() {
+        return this.description;
+    }
+
+    public void setDescription(Component description) {
+        this.description = description;
+    }
+
+    public ItemStack getIcon() {
+        return this.icon;
+    }
+
+    public void setIcon(ItemStack icon) {
+        this.icon = icon;
+    }
+
+    public AdvancementType getType() {
+        return this.type;
+    }
+
+    public void setType(AdvancementType type) {
+        this.type = type;
+    }
+
+    public boolean isShowToast() {
+        return this.showToast;
+    }
+
+    public void setShowToast(boolean showToast) {
+        this.showToast = showToast;
+    }
+
+    public boolean isHidden() {
+        return this.hidden;
+    }
+
+    public void setHidden(boolean hidden) {
+        this.hidden = hidden;
+    }
+
+    public @Nullable ResourceLocation getBackground() {
+        return this.background;
+    }
+
+    public void setBackground(@Nullable ResourceLocation background) {
+        this.background = background;
+    }
+
+    public float getX() {
+        return this.x;
+    }
+
+    public void setX(float x) {
+        this.x = x;
+    }
+
+    public float getY() {
+        return this.y;
+    }
+
+    public void setY(float y) {
+        this.y = y;
+    }
+}
@@ -0,0 +1,60 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.advancements;
+
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+public final class AdvancementHolder {
+
+    private ResourceLocation identifier;
+    private Advancement advancement;
+
+    public AdvancementHolder(ResourceLocation identifier, Advancement advancement) {
+        this.identifier = identifier;
+        this.advancement = advancement;
+    }
+
+    public static AdvancementHolder read(PacketWrapper<?> wrapper) {
+        ResourceLocation identifier = wrapper.readIdentifier();
+        Advancement advancement = Advancement.read(wrapper);
+        return new AdvancementHolder(identifier, advancement);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, AdvancementHolder holder) {
+        wrapper.writeIdentifier(holder.identifier);
+        Advancement.write(wrapper, holder.advancement);
+    }
+
+    public ResourceLocation getIdentifier() {
+        return this.identifier;
+    }
+
+    public void setIdentifier(ResourceLocation identifier) {
+        this.identifier = identifier;
+    }
+
+    public Advancement getAdvancement() {
+        return this.advancement;
+    }
+
+    public void setAdvancement(Advancement advancement) {
+        this.advancement = advancement;
+    }
+}
@@ -0,0 +1,75 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.advancements;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.Nullable;
+
+import java.util.Map;
+
+public final class AdvancementProgress {
+
+    private Map<String, CriterionProgress> criteria;
+
+    public AdvancementProgress(Map<String, CriterionProgress> criteria) {
+        this.criteria = criteria;
+    }
+
+    public static AdvancementProgress read(PacketWrapper<?> wrapper) {
+        Map<String, CriterionProgress> criteria = wrapper.readMap(PacketWrapper::readString, CriterionProgress::read);
+        return new AdvancementProgress(criteria);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, AdvancementProgress progress) {
+        wrapper.writeMap(progress.getCriteria(), PacketWrapper::writeString, CriterionProgress::write);
+    }
+
+    public Map<String, CriterionProgress> getCriteria() {
+        return this.criteria;
+    }
+
+    public void setCriteria(Map<String, CriterionProgress> criteria) {
+        this.criteria = criteria;
+    }
+
+    public static final class CriterionProgress {
+
+        private @Nullable Long obtainedTimestamp;
+
+        public CriterionProgress(@Nullable Long obtainedTimestamp) {
+            this.obtainedTimestamp = obtainedTimestamp;
+        }
+
+        public static CriterionProgress read(PacketWrapper<?> wrapper) {
+            return new CriterionProgress(wrapper.readOptional(PacketWrapper::readLong));
+        }
+
+        public static void write(PacketWrapper<?> wrapper, CriterionProgress progress) {
+            wrapper.writeOptional(progress.obtainedTimestamp, PacketWrapper::writeLong);
+        }
+
+        public @Nullable Long getObtainedTimestamp() {
+            return this.obtainedTimestamp;
+        }
+
+        public void setObtainedTimestamp(@Nullable Long obtainedTimestamp) {
+            this.obtainedTimestamp = obtainedTimestamp;
+        }
+    }
+}
@@ -0,0 +1,27 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.advancements;
+
+public enum AdvancementType {
+
+    TASK,
+    CHALLENGE,
+    GOAL,
+    ;
+}
@@ -0,0 +1,39 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public interface AttributeDisplay {
+
+    static AttributeDisplay read(PacketWrapper<?> wrapper) {
+        AttributeDisplayType<?> type = wrapper.readMappedEntity(AttributeDisplayTypes.getRegistry());
+        return type.read(wrapper);
+    }
+
+    @SuppressWarnings("unchecked") // not unchecked
+    static void write(PacketWrapper<?> wrapper, AttributeDisplay display) {
+        wrapper.writeMappedEntity(display.getType());
+        ((AttributeDisplayType<? super AttributeDisplay>) display.getType()).write(wrapper, display);
+    }
+
+    AttributeDisplayType<?> getType();
+}
@@ -0,0 +1,31 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public interface AttributeDisplayType<T extends AttributeDisplay> extends MappedEntity {
+
+    T read(PacketWrapper<?> wrapper);
+
+    void write(PacketWrapper<?> wrapper, T display);
+}
@@ -0,0 +1,56 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public final class AttributeDisplayTypes {
+
+    private static final VersionedRegistry<AttributeDisplayType<?>> REGISTRY = new VersionedRegistry<>("attribute_display_type");
+
+    private AttributeDisplayTypes() {
+    }
+
+    @ApiStatus.Internal
+    public static <T extends AttributeDisplay> AttributeDisplayType<T> define(
+            String name, PacketWrapper.Reader<T> reader, PacketWrapper.Writer<T> writer
+    ) {
+        return REGISTRY.define(name, data ->
+                new StaticAttributeDisplayType<>(data, reader, writer));
+    }
+
+    public static VersionedRegistry<AttributeDisplayType<?>> getRegistry() {
+        return REGISTRY;
+    }
+
+    public static final AttributeDisplayType<DefaultAttributeDisplay> DEFAULT = define("default",
+            DefaultAttributeDisplay::read, DefaultAttributeDisplay::write);
+    public static final AttributeDisplayType<HiddenAttributeDisplay> HIDDEN = define("hidden",
+            HiddenAttributeDisplay::read, HiddenAttributeDisplay::write);
+    public static final AttributeDisplayType<OverrideAttributeDisplay> OVERRIDE = define("override",
+            OverrideAttributeDisplay::read, OverrideAttributeDisplay::write);
+
+    static {
+        REGISTRY.unloadMappings();
+    }
+}
@@ -187,6 +187,22 @@ public final class Attributes {
    public static final Attribute TEMPT_RANGE = define("tempt_range",
            null, 10d, 0d, 2048d);

+    /**
+     * Added with 1.21.6
+     */
+    public static final Attribute CAMERA_DISTANCE = define("camera_distance",
+            null, 4d, 0d, 32d);
+    /**
+     * Added with 1.21.6
+     */
+    public static final Attribute WAYPOINT_TRANSMIT_RANGE = define("waypoint_transmit_range",
+            null, 0d, 0d, 60_000_000d);
+    /**
+     * Added with 1.21.6
+     */
+    public static final Attribute WAYPOINT_RECEIVE_RANGE = define("waypoint_receive_range",
+            null, 0d, 0d, 60_000_000d);
+
    /**
     * This attribute has been renamed in 1.20.5 to {@link #JUMP_STRENGTH}
     */
@@ -0,0 +1,44 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class DefaultAttributeDisplay implements AttributeDisplay {
+
+    public static final DefaultAttributeDisplay INSTANCE = new DefaultAttributeDisplay();
+
+    private DefaultAttributeDisplay() {
+    }
+
+    public static DefaultAttributeDisplay read(PacketWrapper<?> wrapper) {
+        return INSTANCE;
+    }
+
+    public static void write(PacketWrapper<?> wrapper, DefaultAttributeDisplay display) {
+        // NO-OP
+    }
+
+    @Override
+    public AttributeDisplayType<?> getType() {
+        return AttributeDisplayTypes.DEFAULT;
+    }
+}
@@ -0,0 +1,44 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class HiddenAttributeDisplay implements AttributeDisplay {
+
+    public static final HiddenAttributeDisplay INSTANCE = new HiddenAttributeDisplay();
+
+    private HiddenAttributeDisplay() {
+    }
+
+    public static HiddenAttributeDisplay read(PacketWrapper<?> wrapper) {
+        return INSTANCE;
+    }
+
+    public static void write(PacketWrapper<?> wrapper, HiddenAttributeDisplay display) {
+        // NO-OP
+    }
+
+    @Override
+    public AttributeDisplayType<?> getType() {
+        return AttributeDisplayTypes.HIDDEN;
+    }
+}
@@ -0,0 +1,64 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import net.kyori.adventure.text.Component;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+@NullMarked
+public class OverrideAttributeDisplay implements AttributeDisplay {
+
+    private final Component component;
+
+    public OverrideAttributeDisplay(Component component) {
+        this.component = component;
+    }
+
+    public static OverrideAttributeDisplay read(PacketWrapper<?> wrapper) {
+        return new OverrideAttributeDisplay(wrapper.readComponent());
+    }
+
+    public static void write(PacketWrapper<?> wrapper, OverrideAttributeDisplay display) {
+        wrapper.writeComponent(display.component);
+    }
+
+    @Override
+    public AttributeDisplayType<?> getType() {
+        return AttributeDisplayTypes.OVERRIDE;
+    }
+
+    public Component getComponent() {
+        return this.component;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof OverrideAttributeDisplay)) return false;
+        OverrideAttributeDisplay that = (OverrideAttributeDisplay) obj;
+        return this.component.equals(that.component);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.component);
+    }
+}
@@ -0,0 +1,52 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.attribute;
+
+import com.github.retrooper.packetevents.protocol.mapper.AbstractMappedEntity;
+import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper.Reader;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper.Writer;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class StaticAttributeDisplayType<T extends AttributeDisplay> extends AbstractMappedEntity implements AttributeDisplayType<T> {
+
+    private final Reader<T> reader;
+    private final Writer<T> writer;
+
+    @ApiStatus.Internal
+    public StaticAttributeDisplayType(@Nullable TypesBuilderData data, Reader<T> reader, Writer<T> writer) {
+        super(data);
+        this.reader = reader;
+        this.writer = writer;
+    }
+
+    @Override
+    public T read(PacketWrapper<?> wrapper) {
+        return this.reader.apply(wrapper);
+    }
+
+    @Override
+    public void write(PacketWrapper<?> wrapper, T display) {
+        this.writer.accept(wrapper, display);
+    }
+}
@@ -31,13 +31,15 @@ import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.util.Index;
 import org.jetbrains.annotations.ApiStatus;
-import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;

 import java.util.Objects;

 import static com.github.retrooper.packetevents.util.adventure.AdventureIndexUtil.indexValueOrThrow;

+@NullMarked
 public interface ChatType extends MappedEntity, CopyableEntity<ChatType>, DeepComparableEntity {

    @UnknownNullability("only nullable for 1.19")
@@ -72,7 +72,12 @@ public class ChatTypeDecoration {
        wrapper.writeStyle(decoration.style);
    }

+    @Deprecated
    public static ChatTypeDecoration decode(NBT nbt, ClientVersion version) {
+        return decode(nbt, PacketWrapper.createDummyWrapper(version));
+    }
+
+    public static ChatTypeDecoration decode(NBT nbt, PacketWrapper<?> wrapper) {
        NBTCompound compound = (NBTCompound) nbt;
        String translationKey = compound.getStringTagValueOrThrow("translation_key");
        NBT paramsTag = compound.getTagOrThrow("parameters");
@@ -90,11 +95,16 @@ public class ChatTypeDecoration {
        }
        NBTCompound styleTag = compound.getCompoundTagOrNull("style");
        Style style = styleTag == null ? empty() :
-                AdventureSerializer.serializer(version).nbt().deserializeStyle(styleTag);
+                wrapper.getSerializers().nbt().deserializeStyle(styleTag, wrapper);
        return new ChatTypeDecoration(translationKey, params, style);
    }

+    @Deprecated
    public static NBT encode(ChatTypeDecoration decoration, ClientVersion version) {
+        return encode(decoration, PacketWrapper.createDummyWrapper(version));
+    }
+
+    public static NBT encode(ChatTypeDecoration decoration, PacketWrapper<?> wrapper) {
        NBTList<NBTString> paramsTag = NBTList.createStringList();
        for (Parameter param : decoration.parameters) {
            paramsTag.addTag(new NBTString(param.getId()));
@@ -104,8 +114,8 @@ public class ChatTypeDecoration {
        compound.setTag("translation_key", new NBTString(decoration.translationKey));
        compound.setTag("parameters", paramsTag);
        if (!decoration.style.isEmpty()) {
-            compound.setTag("style", AdventureSerializer.serializer(version)
-                    .nbt().serializeStyle(decoration.style));
+            compound.setTag("style", wrapper.getSerializers()
+                    .nbt().serializeStyle(decoration.style, wrapper));
        }
        return compound;
    }
@@ -28,6 +28,20 @@ import java.util.Optional;

 public class Node {

+    public static final byte TYPE_MASK = 0b11;
+    public static final byte TYPE_ROOT = 0b00;
+    public static final byte TYPE_LITERAL = 0b01;
+    public static final byte TYPE_ARGUMENT = 0b10;
+
+    public static final byte FLAG_MASK = ~TYPE_MASK;
+    public static final byte FLAG_EXECUTABLE = 0b000100;
+    public static final byte FLAG_REDIRECT = 0b001000;
+    public static final byte FLAG_CUSTOM_SUGGESTIONS = 0b010000;
+    /**
+     * Added with 1.21.6
+     */
+    public static final byte FLAG_RESTRICTED = 0b100000;
+
    private byte flags;
    private List<Integer> children;
    private int redirectNodeIndex;
@@ -27,6 +27,7 @@ import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Nullable;
+import org.jspecify.annotations.NullMarked;

 import java.util.ArrayList;
 import java.util.Arrays;
@@ -36,9 +37,10 @@ import java.util.Optional;
 import java.util.function.BiConsumer;
 import java.util.function.Function;

+@NullMarked
 public final class Parsers {

-    private static final VersionedRegistry<Parser> REGISTRY = new VersionedRegistry<>("argument_type");
+    private static final VersionedRegistry<Parser> REGISTRY = new VersionedRegistry<>("command_argument_type");

    private Parsers() {
    }
@@ -218,6 +220,15 @@ public final class Parsers {
            (wrapper, value) -> wrapper.writeIdentifier((ResourceLocation) value.get(0))
    );

+    /**
+     * Added with 1.21.6
+     */
+    public static final Parser HEX_COLOR = define("hex_color", null, null);
+    /**
+     * Added with 1.21.6
+     */
+    public static final Parser DIALOG = define("dialog", null, null);
+
    static {
        REGISTRY.unloadMappings();
    }
@@ -21,11 +21,13 @@ package com.github.retrooper.packetevents.protocol.chat;
 import com.github.retrooper.packetevents.protocol.mapper.AbstractMappedEntity;
 import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
 import org.jetbrains.annotations.ApiStatus;
-import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.UnknownNullability;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;

 import java.util.Objects;

+@NullMarked
 public class StaticChatType extends AbstractMappedEntity implements ChatType {

    private final @UnknownNullability("only nullable for 1.19") ChatTypeDecoration chatDecoration;
@@ -61,9 +63,9 @@ public class StaticChatType extends AbstractMappedEntity implements ChatType {
    @ApiStatus.Internal
    public StaticChatType(
            @Nullable TypesBuilderData data,
-            @UnknownNullability("only nullable for 1.19") ChatTypeDecoration chatDecoration,
+            @Nullable ChatTypeDecoration chatDecoration,
            @Nullable ChatTypeDecoration overlayDecoration,
-            @UnknownNullability("only nullable for 1.19") ChatTypeDecoration narrationDecoration,
+            @Nullable ChatTypeDecoration narrationDecoration,
            @Nullable NarrationPriority narrationPriority
    ) {
        super(data);
@@ -100,10 +102,9 @@ public class StaticChatType extends AbstractMappedEntity implements ChatType {
    }

    @Override
-    public boolean deepEquals(Object obj) {
+    public boolean deepEquals(@Nullable Object obj) {
        if (this == obj) return true;
        if (!(obj instanceof StaticChatType)) return false;
-        if (!super.equals(obj)) return false;
        StaticChatType that = (StaticChatType) obj;
        if (!Objects.equals(this.chatDecoration, that.chatDecoration)) return false;
        if (!Objects.equals(this.overlayDecoration, that.overlayDecoration)) return false;
@@ -113,7 +114,7 @@ public class StaticChatType extends AbstractMappedEntity implements ChatType {

    @Override
    public int deepHashCode() {
-        return Objects.hash(super.hashCode(), this.chatDecoration, this.overlayDecoration, this.narrationDecoration, this.narrationPriority);
+        return Objects.hash(this.chatDecoration, this.overlayDecoration, this.narrationDecoration, this.narrationPriority);
    }

    @Override
@@ -0,0 +1,71 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTInt;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class ChangePageClickEvent implements ClickEvent {
+
+    private final int page;
+
+    @ApiStatus.Obsolete
+    public ChangePageClickEvent(String page) {
+        this(Integer.parseInt(page));
+    }
+
+    public ChangePageClickEvent(int page) {
+        this.page = page;
+    }
+
+    public static ChangePageClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        int page = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5)
+                ? compound.getNumberTagValueOrThrow("page").intValue()
+                : Integer.parseInt(compound.getStringTagValueOrThrow("value"));
+        return new ChangePageClickEvent(page);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, ChangePageClickEvent clickEvent) {
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5)) {
+            compound.setTag("page", new NBTInt(clickEvent.page));
+        } else {
+            compound.setTag("value", new NBTString(Integer.toString(clickEvent.page)));
+        }
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.CHANGE_PAGE;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.changePage(this.page);
+    }
+
+    public int getPage() {
+        return this.page;
+    }
+}
@@ -0,0 +1,76 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.dialog.Dialog;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTEnd;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.util.adventure.NbtTagHolder;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import net.kyori.adventure.text.event.ClickEvent.Payload;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public interface ClickEvent {
+
+    static ClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        String actionName = compound.getStringTagValueOrThrow("action");
+        ClickEventAction<?> action = ClickEventActions.getRegistry().getByNameOrThrow(actionName);
+        return action.decode(compound, wrapper);
+    }
+
+    @SuppressWarnings("unchecked") // not unchecked
+    static void encode(NBTCompound compound, PacketWrapper<?> wrapper, ClickEvent clickEvent) {
+        compound.set("action", clickEvent.getAction().getName(), ResourceLocation::encode, wrapper);
+        ((ClickEventAction<? super ClickEvent>) clickEvent.getAction()).encode(compound, wrapper, clickEvent);
+    }
+
+    ClickEventAction<?> getAction();
+
+    static ClickEvent fromAdventure(net.kyori.adventure.text.event.ClickEvent clickEvent) {
+        switch (clickEvent.action()) {
+            case OPEN_URL:
+                return new OpenUrlClickEvent(clickEvent.value());
+            case OPEN_FILE:
+                return new OpenFileClickEvent(clickEvent.value());
+            case RUN_COMMAND:
+                return new RunCommandClickEvent(clickEvent.value());
+            case SUGGEST_COMMAND:
+                return new SuggestCommandClickEvent(clickEvent.value());
+            case CHANGE_PAGE:
+                return new ChangePageClickEvent(clickEvent.value());
+            case COPY_TO_CLIPBOARD:
+                return new CopyToClipboardClickEvent(clickEvent.value());
+            case SHOW_DIALOG:
+                return new ShowDialogClickEvent((Dialog) ((Payload.Dialog) clickEvent.payload()).dialog());
+            case CUSTOM:
+                Payload.Custom payload = (Payload.Custom) clickEvent.payload();
+                NbtTagHolder nbtTag = (NbtTagHolder) payload.nbt();
+                return new CustomClickEvent(
+                        new ResourceLocation(payload.key()),
+                        nbtTag.getTag() instanceof NBTEnd ? null : nbtTag.getTag()
+                );
+            default:
+                throw new UnsupportedOperationException("Unsupported clickevent: " + clickEvent);
+        }
+    }
+
+    net.kyori.adventure.text.event.ClickEvent asAdventure();
+}
@@ -0,0 +1,34 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public interface ClickEventAction<T extends ClickEvent> extends MappedEntity {
+
+    boolean isAllowFromServer();
+
+    T decode(NBTCompound compound, PacketWrapper<?> wrapper);
+
+    void encode(NBTCompound compound, PacketWrapper<?> wrapper, T clickEvent);
+}
@@ -0,0 +1,89 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.util.NbtMapDecoder;
+import com.github.retrooper.packetevents.protocol.util.NbtMapEncoder;
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public final class ClickEventActions {
+
+    private static final VersionedRegistry<ClickEventAction<?>> REGISTRY = new VersionedRegistry<>("click_event_action");
+
+    private ClickEventActions() {
+    }
+
+    @ApiStatus.Internal
+    public static <T extends ClickEvent> ClickEventAction<T> define(
+            String name, boolean allowFromServer,
+            NbtMapDecoder<T> decoder, NbtMapEncoder<T> encoder
+    ) {
+        return REGISTRY.define(name, data -> new StaticClickEventAction<>(
+                data, allowFromServer, decoder, encoder));
+    }
+
+    public static VersionedRegistry<ClickEventAction<?>> getRegistry() {
+        return REGISTRY;
+    }
+
+    public static final ClickEventAction<OpenUrlClickEvent> OPEN_URL = define("open_url", true,
+            OpenUrlClickEvent::decode, OpenUrlClickEvent::encode);
+    public static final ClickEventAction<OpenFileClickEvent> OPEN_FILE = define("open_file", false,
+            OpenFileClickEvent::decode, OpenFileClickEvent::encode);
+    public static final ClickEventAction<RunCommandClickEvent> RUN_COMMAND = define("run_command", true,
+            RunCommandClickEvent::decode, RunCommandClickEvent::encode);
+    /**
+     * Removed in 1.9
+     */
+    @ApiStatus.Obsolete
+    public static final ClickEventAction<TwitchUserInfoClickEvent> TWITCH_USER_INFO = define("twitch_user_info", false,
+            TwitchUserInfoClickEvent::decode, TwitchUserInfoClickEvent::encode);
+    public static final ClickEventAction<SuggestCommandClickEvent> SUGGEST_COMMAND = define("suggest_command", true,
+            SuggestCommandClickEvent::decode, SuggestCommandClickEvent::encode);
+
+    /**
+     * Added with 1.8
+     */
+    public static final ClickEventAction<ChangePageClickEvent> CHANGE_PAGE = define("change_page", true,
+            ChangePageClickEvent::decode, ChangePageClickEvent::encode);
+
+    /**
+     * Added with 1.15
+     */
+    public static final ClickEventAction<CopyToClipboardClickEvent> COPY_TO_CLIPBOARD = define("copy_to_clipboard", true,
+            CopyToClipboardClickEvent::decode, CopyToClipboardClickEvent::encode);
+
+    /**
+     * Added with 1.21.6
+     */
+    public static final ClickEventAction<ShowDialogClickEvent> SHOW_DIALOG = define("show_dialog", true,
+            ShowDialogClickEvent::decode, ShowDialogClickEvent::encode);
+    /**
+     * Added with 1.21.6
+     */
+    public static final ClickEventAction<CustomClickEvent> CUSTOM = define("custom", true,
+            CustomClickEvent::decode, CustomClickEvent::encode);
+
+    static {
+        REGISTRY.unloadMappings();
+    }
+}
@@ -0,0 +1,57 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class CopyToClipboardClickEvent implements ClickEvent {
+
+    private final String value;
+
+    public CopyToClipboardClickEvent(String value) {
+        this.value = value;
+    }
+
+    public static CopyToClipboardClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        String value = compound.getStringTagValueOrThrow("value");
+        return new CopyToClipboardClickEvent(value);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, CopyToClipboardClickEvent clickEvent) {
+        compound.setTag("value", new NBTString(clickEvent.value));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.COPY_TO_CLIPBOARD;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.copyToClipboard(this.value);
+    }
+
+    public String getValue() {
+        return this.value;
+    }
+}
@@ -0,0 +1,72 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTEnd;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.util.adventure.NbtTagHolder;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+@NullMarked
+public class CustomClickEvent implements ClickEvent {
+
+    private final ResourceLocation id;
+    private final @Nullable NBT payload;
+
+    public CustomClickEvent(ResourceLocation id, @Nullable NBT payload) {
+        this.id = id;
+        this.payload = payload;
+    }
+
+    public static CustomClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        ResourceLocation id = compound.getOrThrow("id", ResourceLocation::decode, wrapper);
+        NBT payload = compound.getTagOrNull("payload");
+        return new CustomClickEvent(id, payload);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, CustomClickEvent clickEvent) {
+        compound.set("id", clickEvent.id, ResourceLocation::encode, wrapper);
+        if (clickEvent.payload != null) {
+            compound.setTag("payload", clickEvent.payload);
+        }
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.CUSTOM;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.custom(
+                this.id.key(), new NbtTagHolder(this.payload != null ? this.payload : NBTEnd.INSTANCE));
+    }
+
+    public ResourceLocation getId() {
+        return this.id;
+    }
+
+    public @Nullable NBT getPayload() {
+        return this.payload;
+    }
+}
@@ -0,0 +1,60 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class OpenFileClickEvent implements ClickEvent {
+
+    private final String path;
+
+    public OpenFileClickEvent(String path) {
+        this.path = path;
+    }
+
+    public static OpenFileClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        String path = compound.getStringTagValueOrThrow(v1215 ? "path" : "value");
+        return new OpenFileClickEvent(path);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, OpenFileClickEvent clickEvent) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        compound.setTag(v1215 ? "path" : "value", new NBTString(clickEvent.path));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.OPEN_FILE;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.openFile(this.path);
+    }
+
+    public String getPath() {
+        return this.path;
+    }
+}
@@ -0,0 +1,60 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class OpenUrlClickEvent implements ClickEvent {
+
+    private final String url;
+
+    public OpenUrlClickEvent(String url) {
+        this.url = url;
+    }
+
+    public static OpenUrlClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        String url = compound.getStringTagValueOrThrow(v1215 ? "url" : "value");
+        return new OpenUrlClickEvent(url);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, OpenUrlClickEvent clickEvent) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        compound.setTag(v1215 ? "url" : "value", new NBTString(clickEvent.url));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.OPEN_URL;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.openUrl(this.url);
+    }
+
+    public String getUrl() {
+        return this.url;
+    }
+}
@@ -0,0 +1,60 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class RunCommandClickEvent implements ClickEvent {
+
+    private final String command;
+
+    public RunCommandClickEvent(String command) {
+        this.command = command;
+    }
+
+    public static RunCommandClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        String command = compound.getStringTagValueOrThrow(v1215 ? "command" : "value");
+        return new RunCommandClickEvent(command);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, RunCommandClickEvent clickEvent) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        compound.setTag(v1215 ? "command" : "value", new NBTString(clickEvent.command));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.RUN_COMMAND;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.runCommand(this.command);
+    }
+
+    public String getCommand() {
+        return this.command;
+    }
+}
@@ -0,0 +1,68 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.dialog.Dialog;
+import com.github.retrooper.packetevents.protocol.dialog.Dialogs;
+import com.github.retrooper.packetevents.protocol.mapper.MappedEntityRef;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class ShowDialogClickEvent implements ClickEvent {
+
+    private final MappedEntityRef<Dialog> dialog;
+
+    public ShowDialogClickEvent(Dialog dialog) {
+        this(new MappedEntityRef.Static<>(dialog));
+    }
+
+    public ShowDialogClickEvent(MappedEntityRef<Dialog> dialog) {
+        this.dialog = dialog;
+    }
+
+    public static ShowDialogClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        MappedEntityRef<Dialog> dialog = MappedEntityRef.decode(compound.getTagOrThrow("dialog"),
+                Dialogs.getRegistry(), Dialog::decode, wrapper);
+        return new ShowDialogClickEvent(dialog);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, ShowDialogClickEvent clickEvent) {
+        compound.setTag("dialog", MappedEntityRef.encode(wrapper, Dialog::encode, clickEvent.dialog));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.SHOW_DIALOG;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.showDialog(this.dialog.get());
+    }
+
+    public MappedEntityRef<Dialog> getDialogRef() {
+        return this.dialog;
+    }
+
+    public Dialog getDialog() {
+        return this.dialog.get();
+    }
+}
@@ -0,0 +1,63 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.mapper.AbstractMappedEntity;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.util.NbtMapDecoder;
+import com.github.retrooper.packetevents.protocol.util.NbtMapEncoder;
+import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class StaticClickEventAction<T extends ClickEvent> extends AbstractMappedEntity implements ClickEventAction<T> {
+
+    private final boolean allowFromServer;
+    private final NbtMapDecoder<T> decoder;
+    private final NbtMapEncoder<T> encoder;
+
+    @ApiStatus.Internal
+    public StaticClickEventAction(
+            @Nullable TypesBuilderData data, boolean allowFromServer,
+            NbtMapDecoder<T> decoder, NbtMapEncoder<T> encoder
+    ) {
+        super(data);
+        this.allowFromServer = allowFromServer;
+        this.decoder = decoder;
+        this.encoder = encoder;
+    }
+
+    @Override
+    public boolean isAllowFromServer() {
+        return this.allowFromServer;
+    }
+
+    @Override
+    public T decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        return this.decoder.decode(compound, wrapper);
+    }
+
+    @Override
+    public void encode(NBTCompound compound, PacketWrapper<?> wrapper, T clickEvent) {
+        this.encoder.encode(compound, wrapper, clickEvent);
+    }
+}
@@ -0,0 +1,60 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class SuggestCommandClickEvent implements ClickEvent {
+
+    private final String command;
+
+    public SuggestCommandClickEvent(String command) {
+        this.command = command;
+    }
+
+    public static SuggestCommandClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        String command = compound.getStringTagValueOrThrow(v1215 ? "command" : "value");
+        return new SuggestCommandClickEvent(command);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, SuggestCommandClickEvent clickEvent) {
+        boolean v1215 = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5);
+        compound.setTag(v1215 ? "command" : "value", new NBTString(clickEvent.command));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.SUGGEST_COMMAND;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        return net.kyori.adventure.text.event.ClickEvent.suggestCommand(this.command);
+    }
+
+    public String getCommand() {
+        return this.command;
+    }
+}
@@ -0,0 +1,62 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.chat.clickevent;
+
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Removed in 1.9
+ */
+@NullMarked
+@ApiStatus.Obsolete
+public class TwitchUserInfoClickEvent implements ClickEvent {
+
+    private final String value;
+
+    public TwitchUserInfoClickEvent(String value) {
+        this.value = value;
+    }
+
+    public static TwitchUserInfoClickEvent decode(NBTCompound compound, PacketWrapper<?> wrapper) {
+        String value = compound.getStringTagValueOrThrow("value");
+        return new TwitchUserInfoClickEvent(value);
+    }
+
+    public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, TwitchUserInfoClickEvent clickEvent) {
+        compound.setTag("value", new NBTString(clickEvent.value));
+    }
+
+    @Override
+    public ClickEventAction<?> getAction() {
+        return ClickEventActions.TWITCH_USER_INFO;
+    }
+
+    @Override
+    public net.kyori.adventure.text.event.ClickEvent asAdventure() {
+        throw new UnsupportedOperationException();
+    }
+
+    public String getValue() {
+        return this.value;
+    }
+}
@@ -19,6 +19,8 @@
 package com.github.retrooper.packetevents.protocol.chat.message;

 import com.github.retrooper.packetevents.protocol.chat.ChatType;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.util.adventure.AdventureSerializer;
 import net.kyori.adventure.text.Component;

 public class ChatMessage {
@@ -34,14 +36,22 @@ public class ChatMessage {
        return chatContent;
    }

-    public ChatType getType() {
-        return type;
+    public String getChatContentJson(ClientVersion version) {
+        return AdventureSerializer.serializer(version).asJson(this.getChatContent());
    }

    public void setChatContent(Component chatContent) {
        this.chatContent = chatContent;
    }

+    public void setChatContentJson(ClientVersion version, String json) {
+        this.setChatContent(AdventureSerializer.serializer(version).fromJson(json));
+    }
+
+    public ChatType getType() {
+        return type;
+    }
+
    public void setType(ChatType type) {
        this.type = type;
    }
@@ -0,0 +1,40 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2022 retrooper 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.github.retrooper.packetevents.protocol.chat.message.reader.impl;
+
+import com.github.retrooper.packetevents.protocol.chat.ChatTypes;
+import com.github.retrooper.packetevents.protocol.chat.message.ChatMessage;
+import com.github.retrooper.packetevents.protocol.chat.message.ChatMessageLegacy;
+import com.github.retrooper.packetevents.protocol.chat.message.reader.ChatMessageProcessor;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.NotNull;
+
+public class ChatMessageProcessor_v1_7 implements ChatMessageProcessor {
+    @Override
+    public ChatMessage readChatMessage(@NotNull PacketWrapper<?> wrapper) {
+        Component chatContent = wrapper.readComponent();
+        return new ChatMessageLegacy(chatContent, ChatTypes.CHAT);
+    }
+
+    @Override
+    public void writeChatMessage(@NotNull PacketWrapper<?> wrapper, @NotNull ChatMessage data) {
+        wrapper.writeComponent(data.getChatContent());
+    }
+}
@@ -27,10 +27,14 @@ import com.github.retrooper.packetevents.protocol.nbt.NBTType;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.util.MathUtil;
 import org.jetbrains.annotations.Range;
+import org.jspecify.annotations.NullMarked;

+@NullMarked
 public final class AlphaColor extends Color {

    public static final AlphaColor WHITE = new AlphaColor(0xFFFFFFFF);
+    public static final AlphaColor BLACK = new AlphaColor(0xFF000000);
+    public static final AlphaColor TRANSPARENT = new AlphaColor(0x00000000);

    private final int alpha;

@@ -49,7 +53,7 @@ public final class AlphaColor extends Color {
            @Range(from = 0L, to = 255L) int blue
    ) {
        super(red, green, blue);
-        this.alpha = alpha;
+        this.alpha = MathUtil.clamp(alpha, 0, 255);
    }

    public AlphaColor(
@@ -101,8 +105,9 @@ public final class AlphaColor extends Color {
        return list;
    }

-    public AlphaColor withAlpha(@Range(from = 0L, to = 255L) int alpha) {
-        return new AlphaColor(alpha, this.red, this.green, this.blue);
+    @Override
+    public AlphaColor withAlpha() {
+        return this;
    }

    @Override
@@ -125,22 +130,92 @@ public final class AlphaColor extends Color {
        return (this.alpha << 24) | (this.red << 16) | (this.green << 8) | this.blue;
    }

+    @Override
+    public AlphaColor plus(Color other) {
+        return new AlphaColor(
+                this.alpha,
+                this.red + other.red,
+                this.green + other.green,
+                this.blue + other.blue
+        );
+    }
+
+    @Override
+    public AlphaColor minus(Color other) {
+        return new AlphaColor(
+                this.alpha,
+                this.red - other.red,
+                this.green - other.green,
+                this.blue - other.blue
+        );
+    }
+
+    @Override
+    public AlphaColor times(Color other) {
+        if (other.alpha() == 255 && other.red == 255 && other.green == 255 && other.blue == 255) {
+            return this;
+        }
+        return new AlphaColor(
+                (this.alpha * other.alpha()) / 255,
+                (this.red * other.red) / 255,
+                (this.green * other.green) / 255,
+                (this.blue * other.blue) / 255
+        );
+    }
+
+    public AlphaColor blendWith(AlphaColor source) {
+        int srcAlpha = source.alpha;
+        if (srcAlpha == 255) {
+            return source;
+        } else if (srcAlpha == 0) {
+            return this;
+        }
+        int alpha = srcAlpha + (this.alpha * (255 - srcAlpha)) / 255;
+        return new AlphaColor(
+                alpha,
+                alphaBlendChannel(alpha, srcAlpha, this.red, source.red),
+                alphaBlendChannel(alpha, srcAlpha, this.green, source.green),
+                alphaBlendChannel(alpha, srcAlpha, this.blue, source.blue)
+        );
+    }
+
+    protected static int alphaBlendChannel(int alpha, int srcAlpha, int dest, int src) {
+        return (src * srcAlpha + dest * (alpha - srcAlpha)) / alpha;
+    }
+
+    @Override
+    public AlphaColor asGrayscale() {
+        int grayscale = (int) ((float) this.red * 0.30f + (float) this.green * 0.59f + (float) this.blue * 0.11f);
+        return new AlphaColor(this.alpha, grayscale, grayscale, grayscale);
+    }
+
+    @Override
+    public AlphaColor scale(float scale) {
+        return this.scale(scale, scale, scale);
+    }
+
+    @Override
+    public AlphaColor scale(float redScale, float greenScale, float blueScale) {
+        return new AlphaColor(
+                this.alpha,
+                (int) ((float) this.red * redScale),
+                (int) ((float) this.green * greenScale),
+                (int) ((float) this.blue * blueScale)
+        );
+    }
+
+    @Override
+    public AlphaColor lerpSrgb(Color dest, float t) {
+        return new AlphaColor(
+                MathUtil.lerp(t, this.alpha, dest.alpha()),
+                MathUtil.lerp(t, this.red, dest.red),
+                MathUtil.lerp(t, this.green, dest.green),
+                MathUtil.lerp(t, this.blue, dest.blue)
+        );
+    }
+
+    @Override
    public @Range(from = 0L, to = 255L) int alpha() {
        return this.alpha;
    }
-
-    @Override
-    public @Range(from = 0L, to = 255L) int red() {
-        return this.red;
-    }
-
-    @Override
-    public @Range(from = 0L, to = 255L) int green() {
-        return this.green;
-    }
-
-    @Override
-    public @Range(from = 0L, to = 255L) int blue() {
-        return this.blue;
-    }
 }
@@ -28,19 +28,29 @@ import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.util.MathUtil;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import net.kyori.adventure.util.RGBLike;
-import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Range;
+import org.jspecify.annotations.NullMarked;

+import java.util.Objects;
+
+@NullMarked
 public class Color implements RGBLike {

+    public static final Color WHITE = new Color(0xFFFFFFFF);
+    public static final Color BLACK = new Color(0xFF000000);
+
    protected static final int BIT_MASK = 0xFF;

    protected final int red, green, blue;

-    public Color(@Range(from = 0L, to = 255L) int red, @Range(from = 0L, to = 255L) int green, @Range(from = 0L, to = 255L) int blue) {
-        this.red = red;
-        this.green = green;
-        this.blue = blue;
+    public Color(
+            @Range(from = 0L, to = 255L) int red,
+            @Range(from = 0L, to = 255L) int green,
+            @Range(from = 0L, to = 255L) int blue
+    ) {
+        this.red = MathUtil.clamp(red, 0, 255);
+        this.green = MathUtil.clamp(green, 0, 255);
+        this.blue = MathUtil.clamp(blue, 0, 255);
    }

    public Color(
@@ -65,6 +75,21 @@ public class Color implements RGBLike {
        wrapper.writeInt(color.asRGB());
    }

+    public static Color readShort(PacketWrapper<?> wrapper) {
+        return new Color(wrapper.readUnsignedByte(), wrapper.readUnsignedByte(), wrapper.readUnsignedByte());
+    }
+
+    public static void writeShort(PacketWrapper<?> wrapper, Color color) {
+        wrapper.writeByte(color.red);
+        wrapper.writeByte(color.green);
+        wrapper.writeByte(color.blue);
+    }
+
+    public static Color decode(NBT nbt, PacketWrapper<?> wrapper) {
+        return decode(nbt, wrapper.getServerVersion().toClientVersion());
+    }
+
+    @Deprecated
    public static Color decode(NBT nbt, ClientVersion version) {
        if (nbt instanceof NBTNumber) {
            return new Color(((NBTNumber) nbt).getAsInt());
@@ -76,6 +101,11 @@ public class Color implements RGBLike {
        return new Color(red, green, blue);
    }

+    public static NBT encode(PacketWrapper<?> wrapper, Color color) {
+        return encode(color, wrapper.getServerVersion().toClientVersion());
+    }
+
+    @Deprecated
    public static NBT encode(Color color, ClientVersion version) {
        if (version.isNewerThanOrEquals(ClientVersion.V_1_21_2)) {
            return new NBTInt(color.asRGB());
@@ -87,15 +117,23 @@ public class Color implements RGBLike {
        return list;
    }

-    public @NotNull Color withRed(@Range(from = 0L, to = 255L) int red) {
+    public AlphaColor withAlpha() {
+        return this.withAlpha(255);
+    }
+
+    public AlphaColor withAlpha(@Range(from = 0L, to = 255L) int alpha) {
+        return new AlphaColor(alpha, this.red, this.green, this.blue);
+    }
+
+    public Color withRed(@Range(from = 0L, to = 255L) int red) {
        return new Color(red, green, blue);
    }

-    public @NotNull Color withGreen(@Range(from = 0L, to = 255L) int green) {
+    public Color withGreen(@Range(from = 0L, to = 255L) int green) {
        return new Color(red, green, blue);
    }

-    public @NotNull Color withBlue(@Range(from = 0L, to = 255L) int blue) {
+    public Color withBlue(@Range(from = 0L, to = 255L) int blue) {
        return new Color(red, green, blue);
    }

@@ -103,6 +141,86 @@ public class Color implements RGBLike {
        return (this.red << 16) | (this.green << 8) | this.blue;
    }

+    public Color plus(Color other) {
+        return new Color(
+                this.red + other.red,
+                this.green + other.green,
+                this.blue + other.blue
+        );
+    }
+
+    public Color minus(Color other) {
+        return new Color(
+                this.red - other.red,
+                this.green - other.green,
+                this.blue - other.blue
+        );
+    }
+
+    public Color times(Color other) {
+        if (other instanceof AlphaColor) {
+            return other.times(this);
+        } else if (this.red == 255 && this.green == 255 && this.blue == 255) {
+            return other;
+        } else if (other.red == 255 && other.green == 255 && other.blue == 255) {
+            return this;
+        }
+        return new Color(
+                (this.red * other.red) / 255,
+                (this.green * other.green) / 255,
+                (this.blue * other.blue) / 255
+        );
+    }
+
+    public AlphaColor blendWith(AlphaColor source) {
+        int srcAlpha = source.alpha();
+        if (srcAlpha == 255) {
+            return source;
+        } else if (srcAlpha == 0) {
+            return this.withAlpha();
+        }
+        int alpha = srcAlpha + (255 - srcAlpha);
+        return new AlphaColor(
+                alpha,
+                alphaBlendChannel(alpha, srcAlpha, this.red, source.red),
+                alphaBlendChannel(alpha, srcAlpha, this.green, source.green),
+                alphaBlendChannel(alpha, srcAlpha, this.blue, source.blue)
+        );
+    }
+
+    protected static int alphaBlendChannel(int alpha, int srcAlpha, int dest, int src) {
+        return (src * srcAlpha + dest * (alpha - srcAlpha)) / alpha;
+    }
+
+    public Color asGrayscale() {
+        int grayscale = (int) ((float) this.red * 0.30f + (float) this.green * 0.59f + (float) this.blue * 0.11f);
+        return new Color(grayscale, grayscale, grayscale);
+    }
+
+    public Color scale(float scale) {
+        return this.scale(scale, scale, scale);
+    }
+
+    public Color scale(float redScale, float greenScale, float blueScale) {
+        return new Color(
+                (int) ((float) this.red * redScale),
+                (int) ((float) this.green * greenScale),
+                (int) ((float) this.blue * blueScale)
+        );
+    }
+
+    public Color lerpSrgb(Color dest, float t) {
+        return new Color(
+                MathUtil.lerp(t, this.red, dest.red),
+                MathUtil.lerp(t, this.green, dest.green),
+                MathUtil.lerp(t, this.blue, dest.blue)
+        );
+    }
+
+    public @Range(from = 0L, to = 255L) int alpha() {
+        return 255;
+    }
+
    @Override
    public @Range(from = 0L, to = 255L) int red() {
        return red;
@@ -117,4 +235,17 @@ public class Color implements RGBLike {
    public @Range(from = 0L, to = 255L) int blue() {
        return blue;
    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj instanceof Color) {
+            return this.asRGB() == ((Color) obj).asRGB();
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.asRGB());
+    }
 }
@@ -39,10 +39,13 @@ import com.github.retrooper.packetevents.protocol.component.builtin.ShulkerColor
 import com.github.retrooper.packetevents.protocol.component.builtin.TropicalFishBaseColorComponent;
 import com.github.retrooper.packetevents.protocol.component.builtin.TropicalFishPatternColorComponent;
 import com.github.retrooper.packetevents.protocol.component.builtin.TropicalFishPatternComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.TypedBlockEntityData;
+import com.github.retrooper.packetevents.protocol.component.builtin.TypedEntityData;
 import com.github.retrooper.packetevents.protocol.component.builtin.VillagerVariantComponent;
 import com.github.retrooper.packetevents.protocol.component.builtin.WolfCollarComponent;
 import com.github.retrooper.packetevents.protocol.component.builtin.WolfSoundVariantComponent;
 import com.github.retrooper.packetevents.protocol.component.builtin.WolfVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.ZombieNautilusVariantComponent;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ArmorTrim;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.BannerLayers;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.BundleContents;
@@ -52,6 +55,7 @@ import com.github.retrooper.packetevents.protocol.component.builtin.item.DebugSt
 import com.github.retrooper.packetevents.protocol.component.builtin.item.FireworkExplosion;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.FoodProperties;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemAdventurePredicate;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemAttackRange;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemAttributeModifiers;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemBees;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemBlockStateProperties;
@@ -62,6 +66,7 @@ import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemCon
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemContainerLoot;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemCustomModelData;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemDamageResistant;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemDamageType;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemDeathProtection;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemDyeColor;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemEnchantable;
@@ -70,11 +75,14 @@ import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemEqu
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemFireworks;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemInstrument;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemJukeboxPlayable;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemKineticWeapon;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemLock;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemLore;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemMapDecorations;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemMapPostProcessingState;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemMinimumAttackCharge;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemModel;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemPiercingWeapon;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemPotionContents;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemPotionDurationScale;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemProfile;
@@ -83,11 +91,13 @@ import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemPro
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemRarity;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemRecipes;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemRepairable;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemSwingAnimation;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemTool;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemTooltipDisplay;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemTooltipStyle;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemUnbreakable;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemUseCooldown;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemUseEffects;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemUseRemainder;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemWeapon;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.LodestoneTracker;
@@ -245,12 +255,18 @@ public final class ComponentTypes {
            ArmorTrim::read, ArmorTrim::write);
    public static final ComponentType<DebugStickState> DEBUG_STICK_STATE = define("debug_stick_state",
            DebugStickState::read, DebugStickState::write);
-    public static final ComponentType<NBTCompound> ENTITY_DATA = define("entity_data",
-            PacketWrapper::readNBT, PacketWrapper::writeNBT);
+    public static final ComponentType<TypedEntityData> TYPED_ENTITY_DATA = define("entity_data",
+            TypedEntityData::read, TypedEntityData::write);
+    @Deprecated
+    public static final ComponentType<NBTCompound> ENTITY_DATA = TYPED_ENTITY_DATA
+            .legacyMap(TypedEntityData::getCompound, TypedEntityData::new);
    public static final ComponentType<NBTCompound> BUCKET_ENTITY_DATA = define("bucket_entity_data",
            PacketWrapper::readNBT, PacketWrapper::writeNBT);
-    public static final ComponentType<NBTCompound> BLOCK_ENTITY_DATA = define("block_entity_data",
-            PacketWrapper::readNBT, PacketWrapper::writeNBT);
+    public static final ComponentType<TypedBlockEntityData> TYPED_BLOCK_ENTITY_DATA = define("block_entity_data",
+            TypedBlockEntityData::read, TypedBlockEntityData::write);
+    @Deprecated
+    public static final ComponentType<NBTCompound> BLOCK_ENTITY_DATA = TYPED_BLOCK_ENTITY_DATA
+            .legacyMap(TypedBlockEntityData::getCompound, TypedBlockEntityData::new);
    public static final ComponentType<ItemInstrument> ITEM_INSTRUMENT = define("instrument",
            ItemInstrument::read, ItemInstrument::write);
    @Deprecated
@@ -472,6 +488,47 @@ public final class ComponentTypes {
    public static final ComponentType<ShulkerColorComponent> SHULKER_COLOR = define("shulker/color",
            ShulkerColorComponent::read, ShulkerColorComponent::write);

+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemUseEffects> USE_EFFECTS = define("use_effects",
+            ItemUseEffects::read, ItemUseEffects::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemMinimumAttackCharge> MINIMUM_ATTACK_CHARGE = define("minimum_attack_charge",
+            ItemMinimumAttackCharge::read, ItemMinimumAttackCharge::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemDamageType> DAMAGE_TYPE = define("damage_type",
+            ItemDamageType::read, ItemDamageType::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemAttackRange> ATTACK_RANGE = define("attack_range",
+            ItemAttackRange::read, ItemAttackRange::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemPiercingWeapon> PIERCING_WEAPON = define("piercing_weapon",
+            ItemPiercingWeapon::read, ItemPiercingWeapon::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemKineticWeapon> KINETIC_WEAPON = define("kinetic_weapon",
+            ItemKineticWeapon::read, ItemKineticWeapon::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ItemSwingAnimation> SWING_ANIMATION = define("swing_animation",
+            ItemSwingAnimation::read, ItemSwingAnimation::write);
+    /**
+     * @versions 1.21.11+
+     */
+    public static final ComponentType<ZombieNautilusVariantComponent> ZOMBIE_NAUTILUS_VARIANT = define("zombie_nautilus/variant",
+            ZombieNautilusVariantComponent::read, ZombieNautilusVariantComponent::write);
+
    /**
     * Returns an immutable view of the component types.
     *
@@ -113,6 +113,12 @@ public final class EnchantEffectComponentTypes {
    public static ComponentType<NBT> TRIDENT_SPIN_ATTACK_STRENGTH = define("trident_spin_attack_strength",
            (nbt, version) -> nbt, (val, version) -> val);

+    /**
+     * @versions 1.21.11+
+     */
+    public static ComponentType<NBT> POST_PIERCING_ATTACK = define("post_piercing_attack",
+            (nbt, version) -> nbt, (val, version) -> val);
+
    static {
        REGISTRY.unloadMappings();
    }
@@ -22,14 +22,22 @@ import com.github.retrooper.packetevents.protocol.nbt.NBT;
 import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.util.mappings.IRegistry;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.Nullable;
+import org.jspecify.annotations.NullMarked;

 import java.util.Map;
 import java.util.Optional;

+@NullMarked
 public interface IComponentMap {

+    static StaticComponentMap decode(NBT nbt, PacketWrapper<?> wrapper, IRegistry<? extends ComponentType<?>> registry) {
+        return decode(nbt, wrapper.getServerVersion().toClientVersion(), registry);
+    }
+
+    @Deprecated
    @SuppressWarnings("unchecked") // safe in this case
    static StaticComponentMap decode(NBT nbt, ClientVersion version, IRegistry<? extends ComponentType<?>> registry) {
        NBTCompound compound = (NBTCompound) nbt;
@@ -45,6 +53,11 @@ public interface IComponentMap {
        return components.build();
    }

+    static NBT encode(PacketWrapper<?> wrapper, StaticComponentMap components) {
+        return encode(components, wrapper.getServerVersion().toClientVersion());
+    }
+
+    @Deprecated
    @SuppressWarnings("unchecked") // safe in this case
    static NBT encode(StaticComponentMap components, ClientVersion version) {
        NBTCompound compound = new NBTCompound();
@@ -0,0 +1,84 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.world.blockentity.BlockEntityType;
+import com.github.retrooper.packetevents.protocol.world.blockentity.BlockEntityTypes;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+@NullMarked
+public final class TypedBlockEntityData {
+
+    private static final BlockEntityType FALLBACK_TYPE = BlockEntityTypes.FURNACE;
+
+    /**
+     * @versions 1.21.9+
+     */
+    private final BlockEntityType type;
+    private final NBTCompound compound;
+
+    public TypedBlockEntityData(NBTCompound compound) {
+        this(FALLBACK_TYPE, compound);
+    }
+
+    public TypedBlockEntityData(BlockEntityType type, NBTCompound compound) {
+        this.type = type;
+        this.compound = compound;
+    }
+
+    public static TypedBlockEntityData read(PacketWrapper<?> wrapper) {
+        BlockEntityType type = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)
+                ? wrapper.readMappedEntity(BlockEntityTypes.getRegistry()) : FALLBACK_TYPE;
+        NBTCompound compound = wrapper.readNBT();
+        return new TypedBlockEntityData(type, compound);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, TypedBlockEntityData data) {
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)) {
+            wrapper.writeMappedEntity(data.type);
+        }
+        wrapper.writeNBT(data.compound);
+    }
+
+    public BlockEntityType getType() {
+        return this.type;
+    }
+
+    public NBTCompound getCompound() {
+        return this.compound;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || this.getClass() != obj.getClass()) return false;
+        TypedBlockEntityData that = (TypedBlockEntityData) obj;
+        if (!this.type.equals(that.type)) return false;
+        return this.compound.equals(that.compound);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.type, this.compound);
+    }
+}
@@ -0,0 +1,84 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin;
+
+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.entity.type.EntityType;
+import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+@NullMarked
+public final class TypedEntityData {
+
+    private static final EntityType FALLBACK_TYPE = EntityTypes.PIG;
+
+    /**
+     * @versions 1.21.9+
+     */
+    private final EntityType type;
+    private final NBTCompound compound;
+
+    public TypedEntityData(NBTCompound compound) {
+        this(FALLBACK_TYPE, compound);
+    }
+
+    public TypedEntityData(EntityType type, NBTCompound compound) {
+        this.type = type;
+        this.compound = compound;
+    }
+
+    public static TypedEntityData read(PacketWrapper<?> wrapper) {
+        EntityType type = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)
+                ? wrapper.readMappedEntity(EntityTypes.getRegistry()) : FALLBACK_TYPE;
+        NBTCompound compound = wrapper.readNBT();
+        return new TypedEntityData(type, compound);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, TypedEntityData data) {
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)) {
+            wrapper.writeMappedEntity(data.type);
+        }
+        wrapper.writeNBT(data.compound);
+    }
+
+    public EntityType getType() {
+        return this.type;
+    }
+
+    public NBTCompound getCompound() {
+        return this.compound;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || this.getClass() != obj.getClass()) return false;
+        TypedEntityData that = (TypedEntityData) obj;
+        if (!this.type.equals(that.type)) return false;
+        return this.compound.equals(that.compound);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.type, this.compound);
+    }
+}
@@ -0,0 +1,68 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.nautilus.ZombieNautilusVariant;
+import com.github.retrooper.packetevents.protocol.entity.nautilus.ZombieNautilusVariants;
+import com.github.retrooper.packetevents.protocol.mapper.MaybeMappedEntity;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+public class ZombieNautilusVariantComponent {
+
+    private MaybeMappedEntity<ZombieNautilusVariant> variant;
+
+    public ZombieNautilusVariantComponent(MaybeMappedEntity<ZombieNautilusVariant> variant) {
+        this.variant = variant;
+    }
+
+    public static ZombieNautilusVariantComponent read(PacketWrapper<?> wrapper) {
+        MaybeMappedEntity<ZombieNautilusVariant> variant = MaybeMappedEntity.read(wrapper,
+                ZombieNautilusVariants.getRegistry(), ZombieNautilusVariant::read);
+        return new ZombieNautilusVariantComponent(variant);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ZombieNautilusVariantComponent component) {
+        MaybeMappedEntity.write(wrapper, component.variant, ZombieNautilusVariant::write);
+    }
+
+    public MaybeMappedEntity<ZombieNautilusVariant> getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(MaybeMappedEntity<ZombieNautilusVariant> variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof ZombieNautilusVariantComponent)) return false;
+        ZombieNautilusVariantComponent that = (ZombieNautilusVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -21,6 +21,7 @@ package com.github.retrooper.packetevents.protocol.component.builtin.item;
 import com.github.retrooper.packetevents.protocol.nbt.NBT;
 import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
 import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.util.adventure.AdventureNbtUtil;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;

 public class CustomData {
@@ -34,7 +35,8 @@ public class CustomData {
            return (NBTCompound) nbt;
        }
        if (nbt instanceof NBTString) {
-            // TODO: parse nbt string
+            String nbtString = ((NBTString) nbt).getValue();
+            return (NBTCompound) AdventureNbtUtil.fromString(nbtString);
        }
        throw new UnsupportedOperationException("Unsupported custom data nbt type: " + nbt.getType());
    }
@@ -0,0 +1,135 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemAttackRange {
+
+    private float minRange;
+    private float maxRange;
+    private float minCreativeRange;
+    private float maxCreativeRange;
+    private float hitboxMargin;
+    private float mobFactor;
+
+    public ItemAttackRange(
+            float minRange, float maxRange,
+            float minCreativeRange, float maxCreativeRange,
+            float hitboxMargin, float mobFactor
+    ) {
+        this.minRange = minRange;
+        this.maxRange = maxRange;
+        this.minCreativeRange = minCreativeRange;
+        this.maxCreativeRange = maxCreativeRange;
+        this.hitboxMargin = hitboxMargin;
+        this.mobFactor = mobFactor;
+    }
+
+    public static ItemAttackRange read(PacketWrapper<?> wrapper) {
+        float minRange = wrapper.readFloat();
+        float maxRange = wrapper.readFloat();
+        float minCreativeRange = wrapper.readFloat();
+        float maxCreativeRange = wrapper.readFloat();
+        float hitboxMargin = wrapper.readFloat();
+        float mobFactor = wrapper.readFloat();
+        return new ItemAttackRange(minRange, maxRange, minCreativeRange, maxCreativeRange, hitboxMargin, mobFactor);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemAttackRange component) {
+        wrapper.writeFloat(component.minRange);
+        wrapper.writeFloat(component.maxRange);
+        wrapper.writeFloat(component.minCreativeRange);
+        wrapper.writeFloat(component.maxCreativeRange);
+        wrapper.writeFloat(component.hitboxMargin);
+        wrapper.writeFloat(component.mobFactor);
+    }
+
+    public float getMinRange() {
+        return this.minRange;
+    }
+
+    public void setMinRange(float minRange) {
+        this.minRange = minRange;
+    }
+
+    public float getMaxRange() {
+        return this.maxRange;
+    }
+
+    public void setMaxRange(float maxRange) {
+        this.maxRange = maxRange;
+    }
+
+    public float getMinCreativeRange() {
+        return this.minCreativeRange;
+    }
+
+    public void setMinCreativeRange(float minCreativeRange) {
+        this.minCreativeRange = minCreativeRange;
+    }
+
+    public float getMaxCreativeRange() {
+        return this.maxCreativeRange;
+    }
+
+    public void setMaxCreativeRange(float maxCreativeRange) {
+        this.maxCreativeRange = maxCreativeRange;
+    }
+
+    public float getHitboxMargin() {
+        return this.hitboxMargin;
+    }
+
+    public void setHitboxMargin(float hitboxMargin) {
+        this.hitboxMargin = hitboxMargin;
+    }
+
+    public float getMobFactor() {
+        return this.mobFactor;
+    }
+
+    public void setMobFactor(float mobFactor) {
+        this.mobFactor = mobFactor;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemAttackRange that = (ItemAttackRange) obj;
+        if (Float.compare(that.minRange, this.minRange) != 0) return false;
+        if (Float.compare(that.maxRange, this.maxRange) != 0) return false;
+        if (Float.compare(that.minCreativeRange, this.minCreativeRange) != 0) return false;
+        if (Float.compare(that.maxCreativeRange, this.maxCreativeRange) != 0) return false;
+        if (Float.compare(that.hitboxMargin, this.hitboxMargin) != 0) return false;
+        return Float.compare(that.mobFactor, this.mobFactor) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.minRange, this.maxRange, this.minCreativeRange, this.maxCreativeRange, this.hitboxMargin, this.mobFactor);
+    }
+}
@@ -20,8 +20,10 @@ package com.github.retrooper.packetevents.protocol.component.builtin.item;

 import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.protocol.attribute.Attribute;
+import com.github.retrooper.packetevents.protocol.attribute.AttributeDisplay;
 import com.github.retrooper.packetevents.protocol.attribute.AttributeOperation;
 import com.github.retrooper.packetevents.protocol.attribute.Attributes;
+import com.github.retrooper.packetevents.protocol.attribute.DefaultAttributeDisplay;
 import com.github.retrooper.packetevents.resources.ResourceLocation;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerUpdateAttributes.PropertyModifier;
@@ -133,24 +135,39 @@ public class ItemAttributeModifiers {
        private Attribute attribute;
        private Modifier modifier;
        private EquipmentSlotGroup slotGroup;
+        private AttributeDisplay display;

+        @ApiStatus.Obsolete
        public ModifierEntry(Attribute attribute, Modifier modifier, EquipmentSlotGroup slotGroup) {
+            this(attribute, modifier, slotGroup, DefaultAttributeDisplay.INSTANCE);
+        }
+
+        public ModifierEntry(
+                Attribute attribute, Modifier modifier,
+                EquipmentSlotGroup slotGroup, AttributeDisplay display
+        ) {
            this.attribute = attribute;
            this.modifier = modifier;
            this.slotGroup = slotGroup;
+            this.display = display;
        }

        public static ModifierEntry read(PacketWrapper<?> wrapper) {
            Attribute attribute = wrapper.readMappedEntity(Attributes::getById);
            Modifier modifier = Modifier.read(wrapper);
            EquipmentSlotGroup slot = wrapper.readEnum(EquipmentSlotGroup.values());
-            return new ModifierEntry(attribute, modifier, slot);
+            AttributeDisplay display = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_6)
+                    ? AttributeDisplay.read(wrapper) : DefaultAttributeDisplay.INSTANCE;
+            return new ModifierEntry(attribute, modifier, slot, display);
        }

        public static void write(PacketWrapper<?> wrapper, ModifierEntry entry) {
            wrapper.writeMappedEntity(entry.attribute);
            Modifier.write(wrapper, entry.modifier);
            wrapper.writeEnum(entry.slotGroup);
+            if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_6)) {
+                AttributeDisplay.write(wrapper, entry.display);
+            }
        }

        public Attribute getAttribute() {
@@ -18,6 +18,7 @@

 package com.github.retrooper.packetevents.protocol.component.builtin.item;

+import com.github.retrooper.packetevents.protocol.component.builtin.TypedEntityData;
 import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;

@@ -68,37 +69,50 @@ public class ItemBees {

    public static class BeeEntry {

-        private NBTCompound entityData;
+        private TypedEntityData entityData;
        private int ticksInHive;
        private int minTicksInHive;

+        @Deprecated
        public BeeEntry(NBTCompound entityData, int ticksInHive, int minTicksInHive) {
+            this(new TypedEntityData(entityData), ticksInHive, minTicksInHive);
+        }
+
+        public BeeEntry(TypedEntityData entityData, int ticksInHive, int minTicksInHive) {
            this.entityData = entityData;
            this.ticksInHive = ticksInHive;
            this.minTicksInHive = minTicksInHive;
        }

        public static BeeEntry read(PacketWrapper<?> wrapper) {
-            NBTCompound entityData = wrapper.readNBT();
+            TypedEntityData entityData = TypedEntityData.read(wrapper);
            int ticksInHive = wrapper.readVarInt();
            int minTicksInHive = wrapper.readVarInt();
            return new BeeEntry(entityData, ticksInHive, minTicksInHive);
        }

        public static void write(PacketWrapper<?> wrapper, BeeEntry bee) {
-            wrapper.writeNBT(bee.entityData);
+            TypedEntityData.write(wrapper, bee.entityData);
            wrapper.writeVarInt(bee.ticksInHive);
            wrapper.writeVarInt(bee.minTicksInHive);
        }

-        public NBTCompound getEntityData() {
+        public TypedEntityData getTypedEntityData() {
            return this.entityData;
        }

-        public void setEntityData(NBTCompound entityData) {
+        public void setTypedEntityData(TypedEntityData entityData) {
            this.entityData = entityData;
        }

+        public NBTCompound getEntityData() {
+            return this.entityData.getCompound();
+        }
+
+        public void setEntityData(NBTCompound entityData) {
+            this.entityData = new TypedEntityData(entityData);
+        }
+
        public int getTicksInHive() {
            return this.ticksInHive;
        }
@@ -25,6 +25,7 @@ import org.jetbrains.annotations.ApiStatus;

 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;

 /**
 * Custom model data was completely rewritten with 1.21.4.
@@ -131,4 +132,25 @@ public class ItemCustomModelData {
            this.floats.set(0, (float) legacyId);
        }
    }
+
+    @Override
+    public final boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (!(obj instanceof ItemCustomModelData)) return false;
+        ItemCustomModelData that = (ItemCustomModelData) obj;
+        if (!floats.equals(that.floats)) return false;
+        if (!flags.equals(that.flags)) return false;
+        if (!strings.equals(that.strings)) return false;
+        return colors.equals(that.colors);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.floats, this.flags, this.strings, this.colors);
+    }
+
+    @Override
+    public String toString() {
+        return "ItemCustomModelData{floats=" + floats + ", flags=" + ", strings=" + flags + strings + ", colors=" + colors + '}';
+    }
 }
@@ -0,0 +1,78 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.protocol.mapper.MaybeMappedEntity;
+import com.github.retrooper.packetevents.protocol.world.damagetype.DamageType;
+import com.github.retrooper.packetevents.protocol.world.damagetype.DamageTypes;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemDamageType {
+
+    private MaybeMappedEntity<DamageType> damageType;
+
+    public ItemDamageType(DamageType damageType) {
+        this(new MaybeMappedEntity<>(damageType));
+    }
+
+    public ItemDamageType(MaybeMappedEntity<DamageType> damageType) {
+        this.damageType = damageType;
+    }
+
+    public static ItemDamageType read(PacketWrapper<?> wrapper) {
+        MaybeMappedEntity<DamageType> damageType = MaybeMappedEntity.read(wrapper,
+                DamageTypes.getRegistry(), DamageType::read);
+        return new ItemDamageType(damageType);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemDamageType component) {
+        MaybeMappedEntity.write(wrapper, component.damageType, DamageType::write);
+    }
+
+    public MaybeMappedEntity<DamageType> getDamageType() {
+        return this.damageType;
+    }
+
+    public void setDamageType(DamageType damageType) {
+        this.setDamageType(new MaybeMappedEntity<>(damageType));
+    }
+
+    public void setDamageType(MaybeMappedEntity<DamageType> damageType) {
+        this.damageType = damageType;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemDamageType that = (ItemDamageType) obj;
+        return this.damageType.equals(that.damageType);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.damageType);
+    }
+}
@@ -24,6 +24,7 @@ import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
 import com.github.retrooper.packetevents.protocol.mapper.MappedEntitySet;
 import com.github.retrooper.packetevents.protocol.player.EquipmentSlot;
 import com.github.retrooper.packetevents.protocol.sound.Sound;
+import com.github.retrooper.packetevents.protocol.sound.Sounds;
 import com.github.retrooper.packetevents.resources.ResourceLocation;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import org.jetbrains.annotations.ApiStatus;
@@ -41,7 +42,18 @@ public class ItemEquippable {
    private boolean dispensable;
    private boolean swappable;
    private boolean damageOnHurt;
+    /**
+     * Added with 1.21.5
+     */
    private boolean equipOnInteract;
+    /**
+     * Added with 1.21.6
+     */
+    private boolean canBeSheared;
+    /**
+     * Added with 1.21.6
+     */
+    private Sound shearingSound;

    @ApiStatus.Obsolete
    public ItemEquippable(
@@ -58,6 +70,7 @@ public class ItemEquippable {
                dispensable, swappable, damageOnHurt, false);
    }

+    @ApiStatus.Obsolete
    public ItemEquippable(
            EquipmentSlot slot,
            Sound equipSound,
@@ -68,6 +81,24 @@ public class ItemEquippable {
            boolean swappable,
            boolean damageOnHurt,
            boolean equipOnInteract
+    ) {
+        this(slot, equipSound, assetId, cameraOverlay, allowedEntities,
+                dispensable, swappable, damageOnHurt, equipOnInteract,
+                false, Sounds.ITEM_SHEARS_SNIP);
+    }
+
+    public ItemEquippable(
+            EquipmentSlot slot,
+            Sound equipSound,
+            @Nullable ResourceLocation assetId,
+            @Nullable ResourceLocation cameraOverlay,
+            @Nullable MappedEntitySet<EntityType> allowedEntities,
+            boolean dispensable,
+            boolean swappable,
+            boolean damageOnHurt,
+            boolean equipOnInteract,
+            boolean canBeSheared,
+            Sound shearingSound
    ) {
        this.slot = slot;
        this.equipSound = equipSound;
@@ -78,6 +109,8 @@ public class ItemEquippable {
        this.swappable = swappable;
        this.damageOnHurt = damageOnHurt;
        this.equipOnInteract = equipOnInteract;
+        this.canBeSheared = canBeSheared;
+        this.shearingSound = shearingSound;
    }

    public static ItemEquippable read(PacketWrapper<?> wrapper) {
@@ -90,9 +123,19 @@ public class ItemEquippable {
        boolean dispensable = wrapper.readBoolean();
        boolean swappable = wrapper.readBoolean();
        boolean damageOnHurt = wrapper.readBoolean();
-        boolean equipOnInteract = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5) && wrapper.readBoolean();
+        boolean equipOnInteract = false;
+        boolean canBeSheared = false;
+        Sound shearingSound = Sounds.ITEM_SHEARS_SNIP;
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5)) {
+            equipOnInteract = wrapper.readBoolean();
+            if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_6)) {
+                canBeSheared = wrapper.readBoolean();
+                shearingSound = Sound.read(wrapper);
+            }
+        }
        return new ItemEquippable(slot, equipSound, assetId,
-                cameraOverlay, allowedEntities, dispensable, swappable, damageOnHurt, equipOnInteract);
+                cameraOverlay, allowedEntities, dispensable, swappable,
+                damageOnHurt, equipOnInteract, canBeSheared, shearingSound);
    }

    public static void write(PacketWrapper<?> wrapper, ItemEquippable equippable) {
@@ -106,6 +149,10 @@ public class ItemEquippable {
        wrapper.writeBoolean(equippable.damageOnHurt);
        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_5)) {
            wrapper.writeBoolean(equippable.equipOnInteract);
+            if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_6)) {
+                wrapper.writeBoolean(equippable.canBeSheared);
+                Sound.write(wrapper, equippable.shearingSound);
+            }
        }
    }

@@ -187,6 +234,34 @@ public class ItemEquippable {
        this.equipOnInteract = equipOnInteract;
    }

+    /**
+     * Added with 1.21.6
+     */
+    public boolean isCanBeSheared() {
+        return this.canBeSheared;
+    }
+
+    /**
+     * Added with 1.21.6
+     */
+    public void setCanBeSheared(boolean canBeSheared) {
+        this.canBeSheared = canBeSheared;
+    }
+
+    /**
+     * Added with 1.21.6
+     */
+    public Sound getShearingSound() {
+        return this.shearingSound;
+    }
+
+    /**
+     * Added with 1.21.6
+     */
+    public void setShearingSound(Sound shearingSound) {
+        this.shearingSound = shearingSound;
+    }
+
    @Deprecated
    public @Nullable ResourceLocation getModel() {
        return this.assetId;
@@ -199,27 +274,28 @@ public class ItemEquippable {

    @Override
    public boolean equals(Object obj) {
-        if (this == obj) return true;
        if (!(obj instanceof ItemEquippable)) return false;
        ItemEquippable that = (ItemEquippable) obj;
        if (this.dispensable != that.dispensable) return false;
        if (this.swappable != that.swappable) return false;
        if (this.damageOnHurt != that.damageOnHurt) return false;
+        if (this.equipOnInteract != that.equipOnInteract) return false;
+        if (this.canBeSheared != that.canBeSheared) return false;
        if (this.slot != that.slot) return false;
-        if (!Objects.equals(this.equipSound, that.equipSound)) return false;
+        if (!this.equipSound.equals(that.equipSound)) return false;
        if (!Objects.equals(this.assetId, that.assetId)) return false;
        if (!Objects.equals(this.cameraOverlay, that.cameraOverlay)) return false;
        if (!Objects.equals(this.allowedEntities, that.allowedEntities)) return false;
-        return Objects.equals(this.equipOnInteract, that.equipOnInteract);
+        return this.shearingSound.equals(that.shearingSound);
    }

    @Override
    public int hashCode() {
-        return Objects.hash(this.slot, this.equipSound, this.assetId, this.cameraOverlay, this.allowedEntities, this.dispensable, this.swappable, this.damageOnHurt, this.equipOnInteract);
+        return Objects.hash(this.slot, this.equipSound, this.assetId, this.cameraOverlay, this.allowedEntities, this.dispensable, this.swappable, this.damageOnHurt, this.equipOnInteract, this.canBeSheared, this.shearingSound);
    }

    @Override
    public String toString() {
-        return "ItemEquippable{slot=" + this.slot + ", equipSound=" + this.equipSound + ", assetId=" + this.assetId + ", cameraOverlay=" + this.cameraOverlay + ", allowedEntities=" + this.allowedEntities + ", dispensable=" + this.dispensable + ", swappable=" + this.swappable + ", damageOnHurt=" + this.damageOnHurt + ", equipOnInteract=" + this.equipOnInteract + '}';
+        return "ItemEquippable{slot=" + this.slot + ", equipSound=" + this.equipSound + ", assetId=" + this.assetId + ", cameraOverlay=" + this.cameraOverlay + ", allowedEntities=" + this.allowedEntities + ", dispensable=" + this.dispensable + ", swappable=" + this.swappable + ", damageOnHurt=" + this.damageOnHurt + ", equipOnInteract=" + this.equipOnInteract + ", canBeSheared=" + this.canBeSheared + ", shearingSound=" + this.shearingSound + '}';
    }
 }
@@ -0,0 +1,243 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.protocol.sound.Sound;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemKineticWeapon {
+
+    private int contactCooldownTicks;
+    private int delayTicks;
+    private @Nullable Condition dismountConditions;
+    private @Nullable Condition knockbackConditions;
+    private @Nullable Condition damageConditions;
+    private float forwardMovement;
+    private float damageMultiplier;
+    private @Nullable Sound sound;
+    private @Nullable Sound hitSound;
+
+    public ItemKineticWeapon(
+            int contactCooldownTicks, int delayTicks, @Nullable Condition dismountConditions,
+            @Nullable Condition knockbackConditions, @Nullable Condition damageConditions,
+            float forwardMovement, float damageMultiplier, @Nullable Sound sound, @Nullable Sound hitSound
+    ) {
+        this.contactCooldownTicks = contactCooldownTicks;
+        this.delayTicks = delayTicks;
+        this.dismountConditions = dismountConditions;
+        this.knockbackConditions = knockbackConditions;
+        this.damageConditions = damageConditions;
+        this.forwardMovement = forwardMovement;
+        this.damageMultiplier = damageMultiplier;
+        this.sound = sound;
+        this.hitSound = hitSound;
+    }
+
+    public static ItemKineticWeapon read(PacketWrapper<?> wrapper) {
+        int contactCooldownTicks = wrapper.readVarInt();
+        int delayTicks = wrapper.readVarInt();
+        Condition dismountConditions = wrapper.readOptional(Condition::read);
+        Condition knockbackConditions = wrapper.readOptional(Condition::read);
+        Condition damageConditions = wrapper.readOptional(Condition::read);
+        float forwardMovement = wrapper.readFloat();
+        float damageMultiplier = wrapper.readFloat();
+        Sound sound = wrapper.readOptional(Sound::read);
+        Sound hitSound = wrapper.readOptional(Sound::read);
+        return new ItemKineticWeapon(contactCooldownTicks, delayTicks, dismountConditions,
+                knockbackConditions, damageConditions, forwardMovement, damageMultiplier, sound, hitSound);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemKineticWeapon component) {
+        wrapper.writeVarInt(component.contactCooldownTicks);
+        wrapper.writeVarInt(component.delayTicks);
+        wrapper.writeOptional(component.dismountConditions, Condition::write);
+        wrapper.writeOptional(component.knockbackConditions, Condition::write);
+        wrapper.writeOptional(component.damageConditions, Condition::write);
+        wrapper.writeFloat(component.forwardMovement);
+        wrapper.writeFloat(component.damageMultiplier);
+        wrapper.writeOptional(component.sound, Sound::write);
+        wrapper.writeOptional(component.hitSound, Sound::write);
+    }
+
+    public int getContactCooldownTicks() {
+        return this.contactCooldownTicks;
+    }
+
+    public void setContactCooldownTicks(int contactCooldownTicks) {
+        this.contactCooldownTicks = contactCooldownTicks;
+    }
+
+    public int getDelayTicks() {
+        return this.delayTicks;
+    }
+
+    public void setDelayTicks(int delayTicks) {
+        this.delayTicks = delayTicks;
+    }
+
+    public @Nullable Condition getDismountConditions() {
+        return this.dismountConditions;
+    }
+
+    public void setDismountConditions(@Nullable Condition dismountConditions) {
+        this.dismountConditions = dismountConditions;
+    }
+
+    public @Nullable Condition getKnockbackConditions() {
+        return this.knockbackConditions;
+    }
+
+    public void setKnockbackConditions(@Nullable Condition knockbackConditions) {
+        this.knockbackConditions = knockbackConditions;
+    }
+
+    public @Nullable Condition getDamageConditions() {
+        return this.damageConditions;
+    }
+
+    public void setDamageConditions(@Nullable Condition damageConditions) {
+        this.damageConditions = damageConditions;
+    }
+
+    public float getForwardMovement() {
+        return this.forwardMovement;
+    }
+
+    public void setForwardMovement(float forwardMovement) {
+        this.forwardMovement = forwardMovement;
+    }
+
+    public float getDamageMultiplier() {
+        return this.damageMultiplier;
+    }
+
+    public void setDamageMultiplier(float damageMultiplier) {
+        this.damageMultiplier = damageMultiplier;
+    }
+
+    public @Nullable Sound getSound() {
+        return this.sound;
+    }
+
+    public void setSound(@Nullable Sound sound) {
+        this.sound = sound;
+    }
+
+    public @Nullable Sound getHitSound() {
+        return this.hitSound;
+    }
+
+    public void setHitSound(@Nullable Sound hitSound) {
+        this.hitSound = hitSound;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemKineticWeapon that = (ItemKineticWeapon) obj;
+        if (this.contactCooldownTicks != that.contactCooldownTicks) return false;
+        if (this.delayTicks != that.delayTicks) return false;
+        if (Float.compare(that.forwardMovement, this.forwardMovement) != 0) return false;
+        if (Float.compare(that.damageMultiplier, this.damageMultiplier) != 0) return false;
+        if (!Objects.equals(this.dismountConditions, that.dismountConditions)) return false;
+        if (!Objects.equals(this.knockbackConditions, that.knockbackConditions)) return false;
+        if (!Objects.equals(this.damageConditions, that.damageConditions)) return false;
+        if (!Objects.equals(this.sound, that.sound)) return false;
+        return Objects.equals(this.hitSound, that.hitSound);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.contactCooldownTicks, this.delayTicks, this.dismountConditions,
+                this.knockbackConditions, this.damageConditions, this.forwardMovement,
+                this.damageMultiplier, this.sound, this.hitSound);
+    }
+
+    public static class Condition {
+
+        private int maxDurationTicks;
+        private float minSpeed;
+        private float minRelativeSpeed;
+
+        public Condition(int maxDurationTicks, float minSpeed, float minRelativeSpeed) {
+            this.maxDurationTicks = maxDurationTicks;
+            this.minSpeed = minSpeed;
+            this.minRelativeSpeed = minRelativeSpeed;
+        }
+
+        public static Condition read(PacketWrapper<?> wrapper) {
+            int maxDurationTicks = wrapper.readVarInt();
+            float minSpeed = wrapper.readFloat();
+            float minRelativeSpeed = wrapper.readFloat();
+            return new Condition(maxDurationTicks, minSpeed, minRelativeSpeed);
+        }
+
+        public static void write(PacketWrapper<?> wrapper, Condition condition) {
+            wrapper.writeVarInt(condition.maxDurationTicks);
+            wrapper.writeFloat(condition.minSpeed);
+            wrapper.writeFloat(condition.minRelativeSpeed);
+        }
+
+        public int getMaxDurationTicks() {
+            return this.maxDurationTicks;
+        }
+
+        public void setMaxDurationTicks(int maxDurationTicks) {
+            this.maxDurationTicks = maxDurationTicks;
+        }
+
+        public float getMinSpeed() {
+            return this.minSpeed;
+        }
+
+        public void setMinSpeed(float minSpeed) {
+            this.minSpeed = minSpeed;
+        }
+
+        public float getMinRelativeSpeed() {
+            return this.minRelativeSpeed;
+        }
+
+        public void setMinRelativeSpeed(float minRelativeSpeed) {
+            this.minRelativeSpeed = minRelativeSpeed;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == null || getClass() != obj.getClass()) return false;
+            Condition condition = (Condition) obj;
+            if (this.maxDurationTicks != condition.maxDurationTicks) return false;
+            if (Float.compare(condition.minSpeed, this.minSpeed) != 0) return false;
+            return Float.compare(condition.minRelativeSpeed, this.minRelativeSpeed) == 0;
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(this.maxDurationTicks, this.minSpeed, this.minRelativeSpeed);
+        }
+    }
+}
@@ -18,46 +18,100 @@

 package com.github.retrooper.packetevents.protocol.component.builtin.item;

+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
 import com.github.retrooper.packetevents.protocol.nbt.NBTString;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;

 import java.util.Objects;

+@NullMarked
 public class ItemLock {

-    private String code;
+    private static final String FALLBACK_LOCK_STRING = "packetevents$invalid_lock";

+    /**
+     * @versions 1.20.5-1.21.1
+     */
+    @ApiStatus.Obsolete
+    private String code;
+    /**
+     * @versions 1.21.2+
+     */
+    private NBTCompound predicate;
+
+    /**
+     * @versions 1.20.5-1.21.1
+     */
+    @ApiStatus.Obsolete
    public ItemLock(String code) {
        this.code = code;
+        this.predicate = new NBTCompound();
+    }
+
+    public ItemLock(NBTCompound predicate) {
+        this.code = FALLBACK_LOCK_STRING;
+        this.predicate = predicate;
    }

    public static ItemLock read(PacketWrapper<?> wrapper) {
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_2)) {
+            return new ItemLock(wrapper.readNBT());
+        }
        NBTString codeTag = (NBTString) wrapper.readNBTRaw();
        return new ItemLock(codeTag.getValue());
    }

    public static void write(PacketWrapper<?> wrapper, ItemLock lock) {
-        wrapper.writeNBTRaw(new NBTString(lock.code));
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_2)) {
+            wrapper.writeNBT(lock.predicate);
+        } else {
+            wrapper.writeNBTRaw(new NBTString(lock.code));
+        }
    }

+    /**
+     * @versions 1.20.5-1.21.1
+     */
+    @ApiStatus.Obsolete
    public String getCode() {
        return this.code;
    }

+    /**
+     * @versions 1.20.5-1.21.1
+     */
+    @ApiStatus.Obsolete
    public void setCode(String code) {
        this.code = code;
    }

+    /**
+     * @versions 1.21.2+
+     */
+    public NBTCompound getPredicate() {
+        return this.predicate;
+    }
+
+    /**
+     * @versions 1.21.2+
+     */
+    public void setPredicate(NBTCompound predicate) {
+        this.predicate = predicate;
+    }
+
    @Override
    public boolean equals(Object obj) {
-        if (this == obj) return true;
-        if (!(obj instanceof ItemLock)) return false;
+        if (obj == null || this.getClass() != obj.getClass()) return false;
        ItemLock itemLock = (ItemLock) obj;
-        return this.code.equals(itemLock.code);
+        if (!this.code.equals(itemLock.code)) return false;
+        return this.predicate.equals(itemLock.predicate);
    }

    @Override
    public int hashCode() {
-        return Objects.hashCode(this.code);
+        return Objects.hash(this.code, this.predicate);
    }
 }
@@ -0,0 +1,65 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemMinimumAttackCharge {
+
+    private float value;
+
+    public ItemMinimumAttackCharge(float value) {
+        this.value = value;
+    }
+
+    public static ItemMinimumAttackCharge read(PacketWrapper<?> wrapper) {
+        return new ItemMinimumAttackCharge(wrapper.readFloat());
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemMinimumAttackCharge component) {
+        wrapper.writeFloat(component.value);
+    }
+
+    public float getValue() {
+        return this.value;
+    }
+
+    public void setValue(float value) {
+        this.value = value;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemMinimumAttackCharge that = (ItemMinimumAttackCharge) obj;
+        return Float.compare(that.value, this.value) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.value);
+    }
+}
@@ -0,0 +1,110 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.protocol.sound.Sound;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemPiercingWeapon {
+
+    private boolean dealsKnockback;
+    private boolean dismounts;
+    private @Nullable Sound sound;
+    private @Nullable Sound hitSound;
+
+    public ItemPiercingWeapon(
+            boolean dealsKnockback, boolean dismounts,
+            @Nullable Sound sound, @Nullable Sound hitSound
+    ) {
+        this.dealsKnockback = dealsKnockback;
+        this.dismounts = dismounts;
+        this.sound = sound;
+        this.hitSound = hitSound;
+    }
+
+    public static ItemPiercingWeapon read(PacketWrapper<?> wrapper) {
+        boolean dealsKnockback = wrapper.readBoolean();
+        boolean dismounts = wrapper.readBoolean();
+        Sound sound = wrapper.readOptional(Sound::read);
+        Sound hitSound = wrapper.readOptional(Sound::read);
+        return new ItemPiercingWeapon(dealsKnockback, dismounts, sound, hitSound);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemPiercingWeapon component) {
+        wrapper.writeBoolean(component.dealsKnockback);
+        wrapper.writeBoolean(component.dismounts);
+        wrapper.writeOptional(component.sound, Sound::write);
+        wrapper.writeOptional(component.hitSound, Sound::write);
+    }
+
+    public boolean isDealsKnockback() {
+        return this.dealsKnockback;
+    }
+
+    public void setDealsKnockback(boolean dealsKnockback) {
+        this.dealsKnockback = dealsKnockback;
+    }
+
+    public boolean isDismounts() {
+        return this.dismounts;
+    }
+
+    public void setDismounts(boolean dismounts) {
+        this.dismounts = dismounts;
+    }
+
+    public @Nullable Sound getSound() {
+        return this.sound;
+    }
+
+    public void setSound(@Nullable Sound sound) {
+        this.sound = sound;
+    }
+
+    public @Nullable Sound getHitSound() {
+        return this.hitSound;
+    }
+
+    public void setHitSound(@Nullable Sound hitSound) {
+        this.hitSound = hitSound;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemPiercingWeapon that = (ItemPiercingWeapon) obj;
+        if (this.dealsKnockback != that.dealsKnockback) return false;
+        if (this.dismounts != that.dismounts) return false;
+        if (!Objects.equals(this.sound, that.sound)) return false;
+        return Objects.equals(this.hitSound, that.hitSound);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.dealsKnockback, this.dismounts, this.sound, this.hitSound);
+    }
+}
@@ -18,40 +18,148 @@

 package com.github.retrooper.packetevents.protocol.component.builtin.item;

+import com.github.retrooper.packetevents.manager.server.ServerVersion;
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.protocol.player.PlayerModelType;
+import com.github.retrooper.packetevents.protocol.util.NbtCodec;
+import com.github.retrooper.packetevents.protocol.util.NbtCodecException;
+import com.github.retrooper.packetevents.protocol.util.NbtCodecs;
+import com.github.retrooper.packetevents.protocol.util.NbtMapCodec;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
-import org.jetbrains.annotations.Nullable;
+import net.kyori.adventure.text.object.PlayerHeadObjectContents;
+import net.kyori.adventure.text.object.PlayerHeadObjectContents.ProfileProperty;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;

+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 import java.util.UUID;

-public class ItemProfile {
+import static net.kyori.adventure.text.object.PlayerHeadObjectContents.property;
+
+@NullMarked
+public final class ItemProfile {

    private @Nullable String name;
    private @Nullable UUID id;
    private List<Property> properties;
+    /**
+     * @versions 1.21.9+
+     */
+    private SkinPatch skinPatch;

    public ItemProfile(
            @Nullable String name,
            @Nullable UUID id,
            List<Property> properties
+    ) {
+        this(name, id, properties, SkinPatch.EMPTY);
+    }
+
+    public ItemProfile(
+            @Nullable String name,
+            @Nullable UUID id,
+            List<Property> properties,
+            SkinPatch skinPatch
    ) {
        this.name = name;
        this.id = id;
        this.properties = properties;
+        this.skinPatch = skinPatch;
    }

    public static ItemProfile read(PacketWrapper<?> wrapper) {
-        String name = wrapper.readOptional(ew -> ew.readString(16));
-        UUID id = wrapper.readOptional(PacketWrapper::readUUID);
+        String name;
+        UUID id;
+        boolean partial = wrapper.getServerVersion().isOlderThan(ServerVersion.V_1_21_9) || !wrapper.readBoolean();
+        if (!partial) {
+            id = wrapper.readUUID();
+            name = wrapper.readString(16);
+        } else {
+            name = wrapper.readOptional(ew -> ew.readString(16));
+            id = wrapper.readOptional(PacketWrapper::readUUID);
+        }
        List<Property> properties = wrapper.readList(Property::read);
-        return new ItemProfile(name, id, properties);
+        SkinPatch skinPatch = wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)
+                ? SkinPatch.read(wrapper) : SkinPatch.EMPTY;
+        return new ItemProfile(name, id, properties, skinPatch);
    }

    public static void write(PacketWrapper<?> wrapper, ItemProfile profile) {
-        wrapper.writeOptional(profile.name, (ew, name) -> ew.writeString(name, 16));
-        wrapper.writeOptional(profile.id, PacketWrapper::writeUUID);
+        boolean partial;
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)) {
+            partial = profile.name == null || profile.id == null;
+            wrapper.writeBoolean(!partial);
+        } else {
+            // always partial profile (which is way simpler, why did they change this?)
+            partial = true;
+        }
+        if (!partial) {
+            wrapper.writeUUID(profile.id);
+            wrapper.writeString(profile.name, 16);
+        } else {
+            wrapper.writeOptional(profile.name, (ew, name) -> ew.writeString(name, 16));
+            wrapper.writeOptional(profile.id, PacketWrapper::writeUUID);
+        }
        wrapper.writeList(profile.properties, Property::write);
+        if (wrapper.getServerVersion().isNewerThanOrEquals(ServerVersion.V_1_21_9)) {
+            SkinPatch.write(wrapper, profile.skinPatch);
+        }
+    }
+
+    public static ItemProfile decode(NBT nbt, PacketWrapper<?> wrapper) {
+        if (nbt instanceof NBTString) {
+            String name = ((NBTString) nbt).getValue();
+            return new ItemProfile(name, null, new ArrayList<>());
+        }
+        NBTCompound compound = (NBTCompound) nbt;
+        UUID id = compound.getOrNull("id", NbtCodecs.UUID, wrapper);
+        String name = compound.getStringTagValueOrNull("name");
+        List<Property> properties = compound.getOrSupply("properties",
+                Property.PROPERTY_MAP, ArrayList::new, wrapper);
+        SkinPatch patch = SkinPatch.decode(compound, wrapper);
+        return new ItemProfile(name, id, properties, patch);
+    }
+
+    public static NBT encode(PacketWrapper<?> wrapper, ItemProfile profile) {
+        NBTCompound compound = new NBTCompound();
+        if (profile.id != null) {
+            compound.set("id", profile.id, NbtCodecs.UUID, wrapper);
+        }
+        if (profile.name != null) {
+            compound.setTag("name", new NBTString(profile.name));
+        }
+        if (!profile.properties.isEmpty()) {
+            compound.set("properties", profile.properties, Property.PROPERTY_MAP, wrapper);
+        }
+        SkinPatch.encode(compound, wrapper, profile.skinPatch);
+        return compound;
+    }
+
+    public static ItemProfile fromAdventure(PlayerHeadObjectContents headContents) {
+        List<ProfileProperty> advProps = headContents.profileProperties();
+        List<Property> properties = new ArrayList<>(advProps.size());
+        for (ProfileProperty property : advProps) {
+            properties.add(Property.fromAdventure(property));
+        }
+        return new ItemProfile(headContents.name(), headContents.id(), properties);
+    }
+
+    public List<ProfileProperty> getAdventureProperties() {
+        if (this.properties.isEmpty()) {
+            return Collections.emptyList();
+        }
+        List<ProfileProperty> properties = new ArrayList<>(this.properties.size());
+        for (Property property : this.properties) {
+            properties.add(property.asAdventure());
+        }
+        return Collections.unmodifiableList(properties);
    }

    public @Nullable String getName() {
@@ -82,6 +190,20 @@ public class ItemProfile {
        this.properties = properties;
    }

+    /**
+     * @versions 1.21.9+
+     */
+    public SkinPatch getSkinPatch() {
+        return this.skinPatch;
+    }
+
+    /**
+     * @versions 1.21.9+
+     */
+    public void setSkinPatch(SkinPatch skinPatch) {
+        this.skinPatch = skinPatch;
+    }
+
    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
@@ -89,16 +211,60 @@ public class ItemProfile {
        ItemProfile that = (ItemProfile) obj;
        if (!Objects.equals(this.name, that.name)) return false;
        if (!Objects.equals(this.id, that.id)) return false;
-        return this.properties.equals(that.properties);
+        if (!this.properties.equals(that.properties)) return false;
+        return this.skinPatch.equals(that.skinPatch);
    }

    @Override
    public int hashCode() {
-        return Objects.hash(this.name, this.id, this.properties);
+        return Objects.hash(this.name, this.id, this.properties, this.skinPatch);
    }

    public static class Property {

+        public static final NbtCodec<Property> CODEC = new NbtMapCodec<Property>() {
+            @Override
+            public Property decode(NBTCompound compound, PacketWrapper<?> wrapper) throws NbtCodecException {
+                String name = compound.getStringTagValueOrThrow("name");
+                String value = compound.getStringTagValueOrThrow("value");
+                String signature = compound.getStringTagValueOrNull("signature");
+                return new ItemProfile.Property(name, value, signature);
+            }
+
+            @Override
+            public void encode(NBTCompound compound, PacketWrapper<?> wrapper, Property value) throws NbtCodecException {
+                compound.setTag("name", new NBTString(value.getName()));
+                compound.setTag("value", new NBTString(value.getValue()));
+                if (value.getSignature() != null) {
+                    compound.setTag("signature", new NBTString(value.getSignature()));
+                }
+            }
+        }.codec();
+
+        public static final NbtCodec<List<ItemProfile.Property>> PROPERTY_MAP = new NbtCodec<List<ItemProfile.Property>>() {
+            private final NbtCodec<List<ItemProfile.Property>> propertyList = CODEC.applyList();
+
+            @Override
+            public List<ItemProfile.Property> decode(NBT nbt, PacketWrapper<?> wrapper) {
+                if (nbt instanceof NBTCompound) {
+                    Map<String, NBT> tags = ((NBTCompound) nbt).getTags();
+                    List<ItemProfile.Property> properties = new ArrayList<>(tags.size());
+                    for (Map.Entry<String, NBT> entry : tags.entrySet()) {
+                        for (String value : NbtCodecs.STRING_LIST.decode(entry.getValue(), wrapper)) {
+                            properties.add(new ItemProfile.Property(entry.getKey(), value, null));
+                        }
+                    }
+                    return properties;
+                }
+                return this.propertyList.decode(nbt, wrapper);
+            }
+
+            @Override
+            public NBT encode(PacketWrapper<?> wrapper, List<ItemProfile.Property> value) {
+                return this.propertyList.encode(wrapper, value);
+            }
+        };
+
        private String name;
        private String value;
        private @Nullable String signature;
@@ -123,6 +289,14 @@ public class ItemProfile {
                    (ew, signature) -> ew.writeString(signature, 1024));
        }

+        public static Property fromAdventure(ProfileProperty property) {
+            return new Property(property.name(), property.value(), property.signature());
+        }
+
+        public ProfileProperty asAdventure() {
+            return property(this.name, this.value, this.signature);
+        }
+
        public String getName() {
            return this.name;
        }
@@ -162,4 +336,95 @@ public class ItemProfile {
            return Objects.hash(this.name, this.value, this.signature);
        }
    }
+
+    public static class SkinPatch {
+
+        public static final SkinPatch EMPTY = new SkinPatch(null, null, null, null);
+
+        private final @Nullable ResourceLocation body;
+        private final @Nullable ResourceLocation cape;
+        private final @Nullable ResourceLocation elytra;
+        private final @Nullable PlayerModelType model;
+
+        public SkinPatch(
+                @Nullable ResourceLocation body,
+                @Nullable ResourceLocation cape,
+                @Nullable ResourceLocation elytra,
+                @Nullable PlayerModelType model
+        ) {
+            this.body = body;
+            this.cape = cape;
+            this.elytra = elytra;
+            this.model = model;
+        }
+
+        public static SkinPatch read(PacketWrapper<?> wrapper) {
+            ResourceLocation body = wrapper.readOptional(ResourceLocation::read);
+            ResourceLocation cape = wrapper.readOptional(ResourceLocation::read);
+            ResourceLocation elytra = wrapper.readOptional(ResourceLocation::read);
+            PlayerModelType model = wrapper.readOptional(PlayerModelType::read);
+            return new SkinPatch(body, cape, elytra, model);
+        }
+
+        public static void write(PacketWrapper<?> wrapper, SkinPatch patch) {
+            wrapper.writeOptional(patch.body, ResourceLocation::write);
+            wrapper.writeOptional(patch.cape, ResourceLocation::write);
+            wrapper.writeOptional(patch.elytra, ResourceLocation::write);
+            wrapper.writeOptional(patch.model, PlayerModelType::write);
+        }
+
+        public static SkinPatch decode(NBTCompound nbt, PacketWrapper<?> wrapper) {
+            ResourceLocation body = nbt.getOrNull("texture", ResourceLocation.CODEC, wrapper);
+            ResourceLocation cape = nbt.getOrNull("cape", ResourceLocation.CODEC, wrapper);
+            ResourceLocation elytra = nbt.getOrNull("elytra", ResourceLocation.CODEC, wrapper);
+            PlayerModelType model = nbt.getOrNull("model", PlayerModelType.CODEC, wrapper);
+            return new SkinPatch(body, cape, elytra, model);
+        }
+
+        public static void encode(NBTCompound compound, PacketWrapper<?> wrapper, SkinPatch patch) {
+            if (patch.body != null) {
+                compound.set("texture", patch.body, ResourceLocation.CODEC, wrapper);
+            }
+            if (patch.cape != null) {
+                compound.set("cape", patch.cape, ResourceLocation.CODEC, wrapper);
+            }
+            if (patch.elytra != null) {
+                compound.set("elytra", patch.elytra, ResourceLocation.CODEC, wrapper);
+            }
+            if (patch.model != null) {
+                compound.set("model", patch.model, PlayerModelType.CODEC, wrapper);
+            }
+        }
+
+        public @Nullable ResourceLocation getBody() {
+            return this.body;
+        }
+
+        public @Nullable ResourceLocation getCape() {
+            return this.cape;
+        }
+
+        public @Nullable ResourceLocation getElytra() {
+            return this.elytra;
+        }
+
+        public @Nullable PlayerModelType getModel() {
+            return this.model;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == null || this.getClass() != obj.getClass()) return false;
+            SkinPatch skinPatch = (SkinPatch) obj;
+            if (!Objects.equals(this.body, skinPatch.body)) return false;
+            if (!Objects.equals(this.cape, skinPatch.cape)) return false;
+            if (!Objects.equals(this.elytra, skinPatch.elytra)) return false;
+            return this.model == skinPatch.model;
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(this.body, this.cape, this.elytra, this.model);
+        }
+    }
 }
@@ -37,8 +37,9 @@ public class ItemRecipes {

    public static ItemRecipes read(PacketWrapper<?> wrapper) {
        NBTList<?> recipes = (NBTList<?>) wrapper.readNBTRaw();
-        List<ResourceLocation> recipeKeys = new ArrayList<>(recipes.size());
-        for (int i = 0; i < recipes.size(); i++) {
+        int size = recipes.size();
+        List<ResourceLocation> recipeKeys = new ArrayList<>(size);
+        for (int i = 0; i < size; i++) {
            NBTString tag = (NBTString) recipes.getTag(i);
            recipeKeys.add(new ResourceLocation(tag.getValue()));
        }
@@ -0,0 +1,87 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemSwingAnimation {
+
+    private static final Type[] TYPES = Type.values();
+
+    private Type type;
+    private int duration;
+
+    public ItemSwingAnimation(Type type, int duration) {
+        this.type = type;
+        this.duration = duration;
+    }
+
+    public static ItemSwingAnimation read(PacketWrapper<?> wrapper) {
+        Type type = wrapper.readEnum(TYPES, Type.NONE);
+        int duration = wrapper.readVarInt();
+        return new ItemSwingAnimation(type, duration);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemSwingAnimation component) {
+        wrapper.writeEnum(component.type);
+        wrapper.writeVarInt(component.duration);
+    }
+
+    public Type getType() {
+        return this.type;
+    }
+
+    public void setType(Type type) {
+        this.type = type;
+    }
+
+    public int getDuration() {
+        return this.duration;
+    }
+
+    public void setDuration(int duration) {
+        this.duration = duration;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemSwingAnimation that = (ItemSwingAnimation) obj;
+        if (this.duration != that.duration) return false;
+        return this.type == that.type;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.type, this.duration);
+    }
+
+    public enum Type {
+        NONE,
+        WHACK,
+        STAB,
+    }
+}
@@ -0,0 +1,92 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.component.builtin.item;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.Objects;
+
+/**
+ * @versions 1.21.11+
+ */
+@NullMarked
+public class ItemUseEffects {
+
+    private boolean canSprint;
+    private boolean interactVibrations;
+    private float speedMultiplier;
+
+    public ItemUseEffects(boolean canSprint, boolean interactVibrations, float speedMultiplier) {
+        this.canSprint = canSprint;
+        this.interactVibrations = interactVibrations;
+        this.speedMultiplier = speedMultiplier;
+    }
+
+    public static ItemUseEffects read(PacketWrapper<?> wrapper) {
+        boolean canSprint = wrapper.readBoolean();
+        boolean interactVibrations = wrapper.readBoolean();
+        float speedMultiplier = wrapper.readFloat();
+        return new ItemUseEffects(canSprint, interactVibrations, speedMultiplier);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ItemUseEffects component) {
+        wrapper.writeBoolean(component.canSprint);
+        wrapper.writeBoolean(component.interactVibrations);
+        wrapper.writeFloat(component.speedMultiplier);
+    }
+
+    public boolean isCanSprint() {
+        return this.canSprint;
+    }
+
+    public void setCanSprint(boolean canSprint) {
+        this.canSprint = canSprint;
+    }
+
+    public boolean isInteractVibrations() {
+        return this.interactVibrations;
+    }
+
+    public void setInteractVibrations(boolean interactVibrations) {
+        this.interactVibrations = interactVibrations;
+    }
+
+    public float getSpeedMultiplier() {
+        return this.speedMultiplier;
+    }
+
+    public void setSpeedMultiplier(float speedMultiplier) {
+        this.speedMultiplier = speedMultiplier;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || getClass() != obj.getClass()) return false;
+        ItemUseEffects that = (ItemUseEffects) obj;
+        if (this.canSprint != that.canSprint) return false;
+        if (this.interactVibrations != that.interactVibrations) return false;
+        return Float.compare(that.speedMultiplier, this.speedMultiplier) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.canSprint, this.interactVibrations, this.speedMultiplier);
+    }
+}
@@ -0,0 +1,97 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug;
+
+import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+/**
+ * @versions 1.21.9+
+ */
+@NullMarked
+public interface DebugSubscription<T> extends MappedEntity {
+
+    T read(PacketWrapper<?> wrapper);
+
+    void write(PacketWrapper<?> wrapper, T value);
+
+    final class Event<T> {
+
+        private final DebugSubscription<T> subscription;
+        private final T value;
+
+        public Event(DebugSubscription<T> subscription, T value) {
+            this.subscription = subscription;
+            this.value = value;
+        }
+
+        public static Event<?> read(PacketWrapper<?> wrapper) {
+            @SuppressWarnings("unchecked")
+            DebugSubscription<? super Object> subscription = (DebugSubscription<? super Object>) wrapper.readMappedEntity(DebugSubscriptions.getRegistry());
+            Object value = subscription.read(wrapper);
+            return new Event<>(subscription, value);
+        }
+
+        public static <T> void write(PacketWrapper<?> wrapper, Event<T> event) {
+            wrapper.writeMappedEntity(event.subscription);
+            event.subscription.write(wrapper, event.value);
+        }
+
+        public DebugSubscription<T> getSubscription() {
+            return this.subscription;
+        }
+
+        public T getValue() {
+            return this.value;
+        }
+    }
+
+    final class Update<T> {
+
+        private final DebugSubscription<T> subscription;
+        private final @Nullable T value;
+
+        public Update(DebugSubscription<T> subscription, @Nullable T value) {
+            this.subscription = subscription;
+            this.value = value;
+        }
+
+        public static Update<?> read(PacketWrapper<?> wrapper) {
+            @SuppressWarnings("unchecked")
+            DebugSubscription<? super Object> subscription = (DebugSubscription<? super Object>) wrapper.readMappedEntity(DebugSubscriptions.getRegistry());
+            Object value = wrapper.readOptional(subscription::read);
+            return new Update<>(subscription, value);
+        }
+
+        public static <T> void write(PacketWrapper<?> wrapper, Update<T> event) {
+            wrapper.writeMappedEntity(event.subscription);
+            wrapper.writeOptional(event.value, event.subscription::write);
+        }
+
+        public DebugSubscription<T> getSubscription() {
+            return this.subscription;
+        }
+
+        public @Nullable T getValue() {
+            return this.value;
+        }
+    }
+}
@@ -0,0 +1,91 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug;
+
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugBeeInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugBrainDump;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugBreezeInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugEntityBlockIntersection;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugGameEventInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugGameEventListenerInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugGoalInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugHiveInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugNeighborUpdateInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugPathInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugPoiInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugRaidsInfo;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugStructureInfos;
+import com.github.retrooper.packetevents.protocol.debug.struct.DebugVillageSections;
+import com.github.retrooper.packetevents.protocol.debug.struct.RedstoneOrientation;
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+/**
+ * @versions 1.21.9+
+ */
+@NullMarked
+public final class DebugSubscriptions {
+
+    private static final VersionedRegistry<DebugSubscription<?>> REGISTRY = new VersionedRegistry<>("debug_subscription");
+
+    private DebugSubscriptions() {
+    }
+
+    public static VersionedRegistry<DebugSubscription<?>> getRegistry() {
+        return REGISTRY;
+    }
+
+    @ApiStatus.Internal
+    public static <T> DebugSubscription<T> define(String name) {
+        return define(name, null, null);
+    }
+
+    @ApiStatus.Internal
+    public static <T> DebugSubscription<T> define(
+            String name,
+            PacketWrapper.@Nullable Reader<T> reader,
+            PacketWrapper.@Nullable Writer<T> writer
+    ) {
+        return REGISTRY.define(name, data -> new StaticDebugSubscription<>(data, reader, writer));
+    }
+
+    public static final DebugSubscription<?> DEDICATED_SERVER_TICK_TIME = define("dedicated_server_tick_time");
+    public static final DebugSubscription<DebugBeeInfo> BEES = define("bees", DebugBeeInfo::read, DebugBeeInfo::write);
+    public static final DebugSubscription<DebugBrainDump> BRAINS = define("brains", DebugBrainDump::read, DebugBrainDump::write);
+    public static final DebugSubscription<DebugBreezeInfo> BREEZES = define("breezes", DebugBreezeInfo::read, DebugBreezeInfo::write);
+    public static final DebugSubscription<DebugGoalInfo> GOAL_SELECTORS = define("goal_selectors", DebugGoalInfo::read, DebugGoalInfo::write);
+    public static final DebugSubscription<DebugPathInfo> ENTITY_PATHS = define("entity_paths", DebugPathInfo::read, DebugPathInfo::write);
+    public static final DebugSubscription<DebugEntityBlockIntersection> ENTITY_BLOCK_INTERSECTIONS = define("entity_block_intersections", DebugEntityBlockIntersection::read, DebugEntityBlockIntersection::write);
+    public static final DebugSubscription<DebugHiveInfo> BEE_HIVES = define("bee_hives", DebugHiveInfo::read, DebugHiveInfo::write);
+    public static final DebugSubscription<DebugPoiInfo> POIS = define("pois", DebugPoiInfo::read, DebugPoiInfo::write);
+    public static final DebugSubscription<RedstoneOrientation> REDSTONE_WIRE_ORIENTATIONS = define("redstone_wire_orientations", RedstoneOrientation::read, RedstoneOrientation::write);
+    public static final DebugSubscription<DebugVillageSections> VILLAGE_SECTIONS = define("village_sections", DebugVillageSections::read, DebugVillageSections::write);
+    public static final DebugSubscription<DebugRaidsInfo> RAIDS = define("raids", DebugRaidsInfo::read, DebugRaidsInfo::write);
+    public static final DebugSubscription<DebugStructureInfos> STRUCTURES = define("structures", DebugStructureInfos::read, DebugStructureInfos::write);
+    public static final DebugSubscription<DebugGameEventListenerInfo> GAME_EVENT_LISTENERS = define("game_event_listeners", DebugGameEventListenerInfo::read, DebugGameEventListenerInfo::write);
+    public static final DebugSubscription<DebugNeighborUpdateInfo> NEIGHBOR_UPDATES = define("neighbor_updates", DebugNeighborUpdateInfo::read, DebugNeighborUpdateInfo::write);
+    public static final DebugSubscription<DebugGameEventInfo> GAME_EVENTS = define("game_events", DebugGameEventInfo::read, DebugGameEventInfo::write);
+
+    static {
+        REGISTRY.unloadMappings();
+    }
+}
@@ -0,0 +1,63 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug;
+
+import com.github.retrooper.packetevents.protocol.mapper.AbstractMappedEntity;
+import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+/**
+ * @versions 1.21.9+
+ */
+@NullMarked
+public class StaticDebugSubscription<T> extends AbstractMappedEntity implements DebugSubscription<T> {
+
+    private final PacketWrapper.@Nullable Reader<T> reader;
+    private final PacketWrapper.@Nullable Writer<T> writer;
+
+    @ApiStatus.Internal
+    public StaticDebugSubscription(
+            @Nullable TypesBuilderData data,
+            PacketWrapper.@Nullable Reader<T> reader,
+            PacketWrapper.@Nullable Writer<T> writer
+    ) {
+        super(data);
+        this.reader = reader;
+        this.writer = writer;
+    }
+
+    @Override
+    public T read(PacketWrapper<?> wrapper) {
+        if (this.reader == null) {
+            throw new IllegalStateException(this + " doesn't support network reading");
+        }
+        return this.reader.apply(wrapper);
+    }
+
+    @Override
+    public void write(PacketWrapper<?> wrapper, T value) {
+        if (this.writer == null) {
+            throw new IllegalStateException(this + " doesn't support network writing");
+        }
+        this.writer.accept(wrapper, value);
+    }
+}
@@ -0,0 +1,94 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug.path;
+
+import com.github.retrooper.packetevents.util.Vector3i;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * @versions 1.21.9+
+ */
+@NullMarked
+public final class DebugNode {
+
+    private final Vector3i pos;
+    private final float walkedDistance;
+    private final float costMalus;
+    private final boolean closed;
+    private final DebugPathType type;
+    private final float f;
+
+    public DebugNode(
+            Vector3i pos, float walkedDistance, float costMalus,
+            boolean closed, DebugPathType type, float f
+    ) {
+        this.pos = pos;
+        this.walkedDistance = walkedDistance;
+        this.costMalus = costMalus;
+        this.closed = closed;
+        this.type = type;
+        this.f = f;
+    }
+
+    public static DebugNode read(PacketWrapper<?> wrapper) {
+        Vector3i pos = new Vector3i(wrapper.readInt(), wrapper.readInt(), wrapper.readInt());
+        float walkedDistance = wrapper.readFloat();
+        float costMalus = wrapper.readFloat();
+        boolean closed = wrapper.readBoolean();
+        DebugPathType type = wrapper.readEnum(DebugPathType.values());
+        float f = wrapper.readFloat();
+        return new DebugNode(pos, walkedDistance, costMalus, closed, type, f);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, DebugNode node) {
+        wrapper.writeInt(node.pos.x);
+        wrapper.writeInt(node.pos.y);
+        wrapper.writeInt(node.pos.z);
+        wrapper.writeFloat(node.walkedDistance);
+        wrapper.writeFloat(node.costMalus);
+        wrapper.writeBoolean(node.closed);
+        wrapper.writeEnum(node.type);
+        wrapper.writeFloat(node.f);
+    }
+
+    public Vector3i getPos() {
+        return this.pos;
+    }
+
+    public float getWalkedDistance() {
+        return this.walkedDistance;
+    }
+
+    public float getCostMalus() {
+        return this.costMalus;
+    }
+
+    public boolean isClosed() {
+        return this.closed;
+    }
+
+    public DebugPathType getType() {
+        return this.type;
+    }
+
+    public float getF() {
+        return this.f;
+    }
+}
@@ -0,0 +1,105 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug.path;
+
+import com.github.retrooper.packetevents.util.Vector3i;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jspecify.annotations.NullMarked;
+
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Network structure for representing vanilla pathfinder paths.
+ *
+ * @versions 1.21.9+
+ */
+@NullMarked
+public final class DebugPath {
+
+    private final boolean reached;
+    private final int nextNodeIndex;
+    private final Vector3i target;
+    private final List<DebugNode> nodes;
+    private final Set<DebugNode> targetNodes;
+    private final List<DebugNode> openSet;
+    private final List<DebugNode> closedSet;
+
+    public DebugPath(
+            boolean reached, int nextNodeIndex, Vector3i target, List<DebugNode> nodes,
+            Set<DebugNode> targetNodes, List<DebugNode> openSet, List<DebugNode> closedSet
+    ) {
+        this.reached = reached;
+        this.nextNodeIndex = nextNodeIndex;
+        this.target = target;
+        this.nodes = nodes;
+        this.targetNodes = targetNodes;
+        this.openSet = openSet;
+        this.closedSet = closedSet;
+    }
+
+    public static DebugPath read(PacketWrapper<?> wrapper) {
+        boolean reached = wrapper.readBoolean();
+        int nextNodeIndex = wrapper.readInt();
+        Vector3i target = wrapper.readBlockPosition();
+        List<DebugNode> nodes = wrapper.readList(DebugNode::read);
+        Set<DebugNode> targetNodes = wrapper.readSet(DebugNode::read);
+        List<DebugNode> openSet = wrapper.readList(DebugNode::read);
+        List<DebugNode> closedSet = wrapper.readList(DebugNode::read);
+        return new DebugPath(reached, nextNodeIndex, target, nodes, targetNodes, openSet, closedSet);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, DebugPath path) {
+        wrapper.writeBoolean(path.reached);
+        wrapper.writeInt(path.nextNodeIndex);
+        wrapper.writeBlockPosition(path.target);
+        wrapper.writeList(path.nodes, DebugNode::write);
+        wrapper.writeSet(path.targetNodes, DebugNode::write);
+        wrapper.writeList(path.openSet, DebugNode::write);
+        wrapper.writeList(path.closedSet, DebugNode::write);
+    }
+
+    public boolean isReached() {
+        return this.reached;
+    }
+
+    public int getNextNodeIndex() {
+        return this.nextNodeIndex;
+    }
+
+    public Vector3i getTarget() {
+        return this.target;
+    }
+
+    public List<DebugNode> getNodes() {
+        return this.nodes;
+    }
+
+    public Set<DebugNode> getTargetNodes() {
+        return this.targetNodes;
+    }
+
+    public List<DebugNode> getOpenSet() {
+        return this.openSet;
+    }
+
+    public List<DebugNode> getClosedSet() {
+        return this.closedSet;
+    }
+}
@@ -0,0 +1,55 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug.path;
+
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * @versions 1.21.9+
+ */
+@NullMarked
+public enum DebugPathType {
+
+    BLOCKED,
+    OPEN,
+    WALKABLE,
+    WALKABLE_DOOR,
+    TRAPDOOR,
+    POWDER_SNOW,
+    DANGER_POWDER_SNOW,
+    FENCE,
+    LAVA,
+    WATER,
+    WATER_BORDER,
+    RAIL,
+    UNPASSABLE_RAIL,
+    DANGER_FIRE,
+    DAMAGE_FIRE,
+    DANGER_OTHER,
+    DAMAGE_OTHER,
+    DOOR_OPEN,
+    DOOR_WOOD_CLOSED,
+    DOOR_IRON_CLOSED,
+    BREACH,
+    LEAVES,
+    STICKY_HONEY,
+    COCOA,
+    DAMAGE_CAUTIOUS,
+    DANGER_TRAPDOOR,
+}
@@ -0,0 +1,26 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug.poi;
+
+import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public interface PoiType extends MappedEntity {
+}
@@ -0,0 +1,67 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2025 retrooper 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.github.retrooper.packetevents.protocol.debug.poi;
+
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public final class PoiTypes {
+
+    private static final VersionedRegistry<PoiType> REGISTRY = new VersionedRegistry<>("point_of_interest_type");
+
+    private PoiTypes() {
+    }
+
+    public static VersionedRegistry<PoiType> getRegistry() {
+        return REGISTRY;
+    }
+
+    @ApiStatus.Internal
+    public static PoiType define(String name) {
+        return REGISTRY.define(name, StaticPoiType::new);
+    }
+
+    public static final PoiType ARMORER = define("armorer");
+    public static final PoiType BUTCHER = define("butcher");
+    public static final PoiType CARTOGRAPHER = define("cartographer");
+    public static final PoiType CLERIC = define("cleric");
+    public static final PoiType FARMER = define("farmer");
+    public static final PoiType FISHERMAN = define("fisherman");
+    public static final PoiType FLETCHER = define("fletcher");
+    public static final PoiType LEATHERWORKER = define("leatherworker");
+    public static final PoiType LIBRARIAN = define("librarian");
+    public static final PoiType MASON = define("mason");
+    public static final PoiType SHEPHERD = define("shepherd");
+    public static final PoiType TOOLSMITH = define("toolsmith");
+    public static final PoiType WEAPONSMITH = define("weaponsmith");
+    public static final PoiType HOME = define("home");
+    public static final PoiType MEETING = define("meeting");
+    public static final PoiType BEEHIVE = define("beehive");
+    public static final PoiType BEE_NEST = define("bee_nest");
+    public static final PoiType NETHER_PORTAL = define("nether_portal");
+    public static final PoiType LODESTONE = define("lodestone");
+    public static final PoiType TEST_INSTANCE = define("test_instance");
+    public static final PoiType LIGHTNING_ROD = define("lightning_rod");
+
+    static {
+        REGISTRY.unloadMappings();
+    }
+}
				`@@ -0,0 +1 @@`
				`.gitea/CODEOWNERS linguist-detectable=false`