PacketEvents 2.9.5 Update

Add WrappedBlockState utility constructor to WrapperPlayServerBlockChange
Fixes #1325
2025-08-26 01:22:29 +02:00 · 2025-08-25 23:02:05 +02:00 · 2025-08-25 22:59:49 +02:00 · 2025-08-25 22:52:41 +02:00 · 2025-08-25 22:41:57 +02:00 · 2025-08-25 21:20:40 +02:00
947 changed files with 2613880 additions and 1762299 deletions
@@ -1,5 +1,3 @@
 # These are supported funding model platforms

-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: retrooper
-custom: ['https://paypal.me/retrooperdev']
+github: [retrooper]
@@ -8,16 +8,19 @@ jobs:
    runs-on: ubuntu-latest
    permissions:
      contents: read
-      packages: write

    steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4

-      - name: Set up JDK 17
-        uses: actions/setup-java@v3
+      - name: Validate gradle wrapper
+        uses: gradle/actions/wrapper-validation@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
        with:
-          java-version: '17'
-          distribution: 'adopt'
+          java-version: '21'
+          distribution: 'temurin'
+          cache: 'gradle'
          server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
          settings-path: ${{ github.workspace }} # location for the settings.xml file

@@ -25,37 +28,43 @@ jobs:
        run: chmod +x gradlew && ./gradlew build

      - name: Upload build artifacts api
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
        with:
          name: api-build
          path: api/build/libs

      - name: Upload build artifacts spigot
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
        with:
          name: spigot-build
          path: spigot/build/libs

      - name: Upload build artifacts netty-common
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
        with:
          name: netty-common-build
          path: netty-common/build/libs

      - name: Upload build artifacts bungeecord
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
        with:
          name: bungeecord-build
          path: bungeecord/build/libs

      - name: Upload build artifacts velocity
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
        with:
          name: velocity-build
          path: velocity/build/libs

      - name: Upload build artifacts fabric
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
        with:
          name: fabric-build
-          path: fabric/build/libs
+          path: fabric/build/libs
+
+      - name: Upload build artifacts sponge
+        uses: actions/upload-artifact@v4
+        with:
+          name: sponge-build
+          path: sponge/build/libs
@@ -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@v4
+
+      - name: Validate gradle wrapper
+        uses: gradle/actions/wrapper-validation@v4
+
+      - name: Setup java 21
+        uses: actions/setup-java@v4
+        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
@@ -123,3 +123,6 @@ run/
 .project
 .settings/
 .classpath
+
+# Build Source Kotlin
+/buildSrc/.kotlin/
@@ -0,0 +1,294 @@
+!!!!! 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
+
+!!!!!
@@ -1,33 +1,40 @@
-# packetevents
+<!--suppress HtmlDeprecatedAttribute -->
+<div align="center">
+    <h2><i>PacketEvents</i></h2>
+    <h3><i>A powerful networking library for Minecraft packet processing and manipulation.</i></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">
+    <a href="https://bstats.org/plugin/bukkit/packetevents/11327"><img src="https://img.shields.io/bstats/servers/11327?style=for-the-badge"></a>
+    <a href="https://github.com/retrooper/packetevents/releases"><img src="https://img.shields.io/github/downloads/retrooper/packetevents/total.svg?style=for-the-badge&logo=github"></a>
+</div>
+<h3>Resources</h3>

-[![](https://img.shields.io/badge/License-GPLv3-yellow.svg)](https://github.com/retrooper/packetevents/blob/2.0/LICENSE) [![](https://github.com/retrooper/packetevents/actions/workflows/build.yml/badge.svg)](https://github.com/retrooper/packetevents/actions) [![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/prqzNg9tRU)
+- [Read documentation](https://docs.packetevents.com/)
+    - [Getting Started](https://docs.packetevents.com/getting-started)
+    - [JavaDocs](https://javadocs.packetevents.com)
+- [Releases](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)

-PacketEvents is a fast and efficient multi-platform packet processing library. Our packet wrappers are easy to use with multi-version support. With our API you can write code that runs on Spigot, BungeeCord, Velocity, and Fabric! Switch to PacketEvents today by joining \
-our [Discord Server](https://discord.me/packetevents) for help.
+<h3>Sponsors</h3>

-### Links
-* [Find release builds on Modrinth](https://modrinth.com/plugin/packetevents)
-* [Find development builds on Jenkins](https://ci.codemc.io/job/retrooper/job/packetevents)
-* [View documentation on our JavaDocs Page](https://packetevents.github.io/javadocs)
+<i>Thanks to the following sponsors for supporting this project:</i>

-### Setup
-[How to Setup PacketEvents](https://github.com/retrooper/packetevents/wiki/Depending-on-pre%E2%80%90built-PacketEvents)
+<a href="https://pebblehost.com"><img src="https://pebblehost.com/src/img/logos/main-old.png" width=150><br>

-### Examples / How to use PacketEvents
-[Example repository](https://github.com/retrooper/packetevents-example)
+<a href="https://www.ej-technologies.com"><img src="https://www.ej-technologies.com/images/product_banners/jprofiler_small.png"><br>

-### Sponsorships
-[![](https://www.ej-technologies.com/images/product_banners/jprofiler_small.png)](https://www.ej-technologies.com/products/jprofiler/overview.html)
+<h3>Credits</h3>

-### Statistics
-PacketEvents optionally collects statistics using [bStats](https://bstats.org/)\
-Check out our [bStats page](https://bstats.org/plugin/bukkit/packetevents/11327)
+<i>Here are some projects that we are heavily inspired by, thus we have integrated</i>\
+<i>small portions of their code into our work.</i>

-### Credit to these projects
-[wiki.vg/Protocol](https://wiki.vg/Protocol)\
-[netty](https://github.com/netty/netty)\
-[gson](https://github.com/google/gson)\
-[adventure](https://github.com/KyoriPowered/adventure)\
+[Protocol Documentation for the Minecraft Java Edition](https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Protocol)\
 [ViaVersion](https://github.com/ViaVersion/ViaVersion)\
 [ProtocolSupport](https://github.com/ProtocolSupport/ProtocolSupport)\
+[adventure](https://github.com/KyoriPowered/adventure)\
 [MCProtocolLib](https://github.com/GeyserMC/MCProtocolLib/)  
@@ -1,60 +0,0 @@
-import com.github.retrooper.MappingCompressionTask
-
-// papermc repo + disableAutoTargetJvm needed for mockbukkit
-repositories {
-    maven { url 'https://repo.papermc.io/repository/maven-public/' }
-}
-
-java {
-    disableAutoTargetJvm()
-    sourceSets {
-        main {
-            resources {
-                srcDirs += ["$buildDir.canonicalPath/mappings/generated"]
-            }
-        }
-
-        test {
-            resources {
-                srcDirs += ["$buildDir.canonicalPath/mappings/generated"]
-            }
-        }
-    }
-}
-
-dependencies {
-    compileOnly(adventureDependencies)
-
-    testImplementation(adventureDependencies)
-    testImplementation(project(":netty-common"))
-    testImplementation("com.github.seeseemelk:MockBukkit-v1.20:3.9.0")
-    testImplementation("org.slf4j:slf4j-simple:2.0.7")
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.10.0")
-    testImplementation("org.junit.jupiter:junit-jupiter-engine:5.10.0")
-}
-
-test {
-    useJUnitPlatform()
-}
-
-task generateMapping(type: MappingCompressionTask) {
-    mappingsDir = rootDir.toPath().resolve("mappings")
-    outDir = project.buildDir.toPath().resolve("mappings/generated/assets/mappings")
-    outputs.upToDateWhen {
-        def gen_modified = project.buildDir.toPath().resolve("mappings/generated/assets/mappings").toFile().lastModified()
-        def list = []
-        project.rootProject.projectDir.toPath().resolve("mappings").toFile().eachFileRecurse(groovy.io.FileType.FILES) { file ->
-            list << file
-        }
-
-        for (File file : list) {
-            if (file.lastModified() > gen_modified) {
-                return false
-            }
-        }
-
-        return true
-    }
-}
-
-tasks.processResources.dependsOn(generateMapping)
@@ -0,0 +1,106 @@
+import com.github.retrooper.compression.strategy.dir.JsonBase64DataDirStrategy
+import com.github.retrooper.compression.strategy.dir.JsonRegistryCompressionDirStrategy
+import com.github.retrooper.compression.strategy.dir.JsonToNbtDirStrategy
+import com.github.retrooper.excludeAdventure
+
+plugins {
+    packetevents.`shadow-conventions`
+    packetevents.`library-conventions`
+    `mapping-compression`
+    `pe-version`
+}
+
+// papermc repo + disableAutoTargetJvm needed for mockbukkit
+repositories {
+    maven("https://repo.papermc.io/repository/maven-public/")
+}
+
+java {
+    withJavadocJar()
+}
+
+dependencies {
+    compileOnlyApi(libs.bundles.adventure)
+    compileOnlyApi(libs.bundles.adventure.serializers)
+    implementation(libs.adventure.api)
+    api(project(":patch:adventure-text-serializer-gson", "shadow")) {
+        excludeAdventure()
+    }
+    api(libs.adventure.text.serializer.legacy) {
+        excludeAdventure()
+    }
+    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 {
+    mappingDirectory = rootDir.resolve("mappings")
+    outDirectory = project.layout.buildDirectory.dir("mappings/generated/assets/mappings")
+
+    with<JsonToNbtDirStrategy> {
+        compress("data")
+    }
+    with<JsonBase64DataDirStrategy> {
+        compress("item_base_components")
+    }
+    with<JsonRegistryCompressionDirStrategy> {
+        compress("registries")
+    }
+}
+
+tasks {
+    assemble {
+        setDependsOn(dependsOn.filterNot { it == "shadowNoAdventure" })
+    }
+
+    javadoc {
+        mustRunAfter(generateVersionsFile)
+    }
+
+    sourcesJar {
+        mustRunAfter(generateVersionsFile)
+    }
+
+    withType<JavaCompile> {
+        dependsOn(generateVersionsFile)
+    }
+
+    processResources {
+        dependsOn(compressMappings)
+        from(project.layout.buildDirectory.dir("mappings/generated").get())
+    }
+
+    generateVersionsFile {
+        packageName = "com.github.retrooper.packetevents.util"
+    }
+
+    test {
+        useJUnitPlatform()
+    }
+
+    shadowJar {
+        exclude {
+            val path = it.path
+            path.startsWith("net/kyori") && !path.startsWith("net/kyori/adventure/text/serializer") && !path.startsWith(
+                "net/kyori/option"
+            )
+        }
+    }
+}
+
+publishing {
+    publications {
+        named<MavenPublication>("shadow") {
+            artifact(tasks["javadocJar"])
+        }
+    }
+}
@@ -27,33 +27,34 @@ import com.github.retrooper.packetevents.netty.NettyManager;
 import com.github.retrooper.packetevents.settings.PacketEventsSettings;
 import com.github.retrooper.packetevents.util.LogManager;
 import com.github.retrooper.packetevents.util.PEVersion;
+//Note: The PEVersions class is generated. Refer to PEVersionTask.kt
+import com.github.retrooper.packetevents.util.PEVersions;
 import com.github.retrooper.packetevents.util.updatechecker.UpdateChecker;

 import java.util.logging.Logger;

 public abstract class PacketEventsAPI<T> {
-    private static final EventManager EVENT_MANAGER = new EventManager();
-    private static final PacketEventsSettings SETTINGS = new PacketEventsSettings();
-    private static final UpdateChecker UPDATE_CHECKER = new UpdateChecker();
-    private final Logger LOGGER = Logger.getLogger(PacketEventsAPI.class.getName());
-    private static final LogManager LOG_MANAGER = new LogManager();
-    //TODO UPDATE
-    private static final PEVersion VERSION = new PEVersion(2, 3, 0);
-    
+    private final EventManager eventManager = new EventManager();
+    private final PacketEventsSettings settings = new PacketEventsSettings();
+    private final UpdateChecker updateChecker = new UpdateChecker();
+    private final LogManager logManager = new LogManager();
+    private static final Logger LOGGER = Logger.getLogger(PacketEventsAPI.class.getName());
+
    public EventManager getEventManager() {
-        return EVENT_MANAGER;
+        return eventManager;
    }

    public PacketEventsSettings getSettings() {
-        return SETTINGS;
+        return settings;
    }

    public UpdateChecker getUpdateChecker() {
-        return UPDATE_CHECKER;
+        return updateChecker;
    }

    public PEVersion getVersion() {
-        return VERSION;
+        //Note: The PEVersions class is generated by the auto-version task. Refer to PEVersionTask.kt
+        return PEVersions.CURRENT;
    }

    public Logger getLogger() {
@@ -61,7 +62,7 @@ public abstract class PacketEventsAPI<T> {
    }

    public LogManager getLogManager() {
-        return LOG_MANAGER;
+        return logManager;
    }

    public abstract void load();
@@ -74,6 +75,8 @@ public abstract class PacketEventsAPI<T> {

    public abstract void terminate();

+    public abstract boolean isTerminated();
+
    public abstract T getPlugin();

    public abstract ServerManager getServerManager();
@@ -0,0 +1,28 @@
+package com.github.retrooper.packetevents.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.annotation.Documented;
+
+/**
+ * Marks an API element as obsolete and makes this information available
+ * at runtime via reflection. Use in conjunction with an IDE-recognized
+ * annotation like @ApiStatus.Obsolete if IDE warnings are also desired.
+ */
+@Documented
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.FIELD}) // Adjust targets as needed
+public @interface RuntimeObsolete {
+    /**
+     * Specifies in which version the API became obsolete.
+     * Should generally match the value in the corresponding @ApiStatus.Obsolete annotation.
+     */
+    String since() default "";
+
+    /**
+     * Optional: Add a reason or replacement suggestion.
+     */
+    String reason() default "";
+}
@@ -24,11 +24,35 @@ import org.jetbrains.annotations.Nullable;

 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArraySet;
 import java.util.logging.Level;

+/**
+ * Class for event managing. Implements both, internal and API methods.
+ *
+ * @apiNote It is highly recommended to register the event listeners at server start-up,
+ * without frequent modifications during runtime, since this class needs to recalculate all of
+ * its event listeners during any modifications. In other words, it assumes that reads (events fired)
+ * greatly outnumber writes (listeners modifications). If your case requires frequent listener modifications,
+ * open a pull request on GitHub and describe your case.
+ *
+ * @author retrooper
+ * @author ShadowOfHeaven (optimization)
+ *
+ */
+
 public class EventManager {
-    private final Map<PacketListenerPriority, Set<PacketListenerCommon>> listenersMap =
-            Collections.synchronizedMap(new EnumMap<>(PacketListenerPriority.class));
+
+    //Using a ConcurrentHashMap is faster and more secure here, compared to Collections.synchronizedMap(new EnumMap<>(PacketListenerPriority.class))
+    //This is mainly due to:
+    //1. On each modification Collections.synchronizedMap synchronizes the whole Map object, while ConcurrentHashMap only it's internal, currently modified Node
+    //2. ConcurrentHashMap won't fail in a multi-thread environment, while Collections.synchronizedMap is said to have a lot of potential problems,
+    //being a generalized method for synchronization
+    private final Map<PacketListenerPriority, Set<PacketListenerCommon>> listenersMap = new ConcurrentHashMap<>();
+    //Since reads greatly outnumber writes, create an array for the best possible iteration time
+    //Updated as a whole on writes, no index modifications are allowed
+    private volatile PacketListenerCommon[] listeners = new PacketListenerCommon[0];
+

    /**
     * Call the PacketEvent.
@@ -43,32 +67,43 @@ public class EventManager {
        callEvent(event, null);
    }

+
+    /**
+     * Call the PacketEvent.
+     * This method processes the event on all the registered dynamic packet event listeners.
+     * The {@link PacketListenerPriority#LOWEST} prioritized listeners will be processing first,
+     * the {@link PacketListenerPriority#MONITOR} will be processing last and can
+     * 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
+     */
    public void callEvent(PacketEvent event, @Nullable Runnable postCallListenerAction) {
-        for (PacketListenerPriority priority : PacketListenerPriority.values()) {
-            Set<PacketListenerCommon> listeners = listenersMap.get(priority);
-            if (listeners != null) {
-                for (PacketListenerCommon listener : listeners) {
-                    try {
-                        event.call(listener);
-                    } catch (Exception t) {
-                        // ignore handshake exceptions
-                        if (t.getClass() != InvalidHandshakeException.class) {
-                            PacketEvents.getAPI().getLogger().log(Level.WARNING, "PacketEvents caught an unhandled exception while calling your listener.", t);
-                        }
-                    }
-                    if (postCallListenerAction != null) {
-                        postCallListenerAction.run();
-                    }
+        for (PacketListenerCommon listener : listeners) {
+            try {
+                event.call(listener);
+            } catch (Exception t) {
+                // ignore handshake exceptions
+                if (t.getClass() != InvalidHandshakeException.class) {
+                    PacketEvents.getAPI().getLogger().log(Level.WARNING, "PacketEvents caught an unhandled exception while calling your listener.", t);
                }
            }
+            if (postCallListenerAction != null) {
+                postCallListenerAction.run();
+            }
        }
        // For performance reasons, we don't want to re-encode the packet if it's not needed.
-        if (event instanceof ProtocolPacketEvent && !((ProtocolPacketEvent<?>) event).needsReEncode()) {
-            ((ProtocolPacketEvent<?>) event).setLastUsedWrapper(null);
+        if (event instanceof ProtocolPacketEvent && !((ProtocolPacketEvent) event).needsReEncode()) {
+            ((ProtocolPacketEvent) event).setLastUsedWrapper(null);
        }
-
    }

+    /**
+     * Register the dynamic packet event listener.
+     *
+     * @param listener {@link PacketListenerCommon}
+     * @param priority {@link PacketListenerPriority}
+     */
    public PacketListenerCommon registerListener(PacketListener listener, PacketListenerPriority priority) {
        PacketListenerCommon packetListenerAbstract = listener.asAbstract(priority);
        return registerListener(packetListenerAbstract);
@@ -80,12 +115,8 @@ public class EventManager {
     * @param listener {@link PacketListenerCommon}
     */
    public PacketListenerCommon registerListener(PacketListenerCommon listener) {
-        Set<PacketListenerCommon> listenerSet = listenersMap.get(listener.getPriority());
-        if (listenerSet == null) {
-            listenerSet = ConcurrentHashMap.newKeySet();
-        }
-        listenerSet.add(listener);
-        listenersMap.put(listener.getPriority(), listenerSet);
+        this.registerListenerNoRecalculation(listener);
+        this.recalculateListeners();
        return listener;
    }

@@ -96,21 +127,22 @@ public class EventManager {
     */
    public PacketListenerCommon[] registerListeners(PacketListenerCommon... listeners) {
        for (PacketListenerCommon listener : listeners) {
-            registerListener(listener);
+            this.registerListenerNoRecalculation(listener);
        }
+        this.recalculateListeners();
        return listeners;
    }

    public void unregisterListener(PacketListenerCommon listener) {
-        Set<PacketListenerCommon> listenerSet = listenersMap.get(listener.getPriority());
-        if (listenerSet == null) return;
-        listenerSet.remove(listener);
+        if (this.unregisterListenerNoRecalculation(listener)) this.recalculateListeners();
    }

    public void unregisterListeners(PacketListenerCommon... listeners) {
+        boolean modified = false;
        for (PacketListenerCommon listener : listeners) {
-            unregisterListener(listener);
+            modified |= this.unregisterListenerNoRecalculation(listener);//OR - at least one of these needs to be true to return true, meaning the boolean will permanently stay true if once set so
        }
+        if (modified) this.recalculateListeners();
    }


@@ -118,6 +150,36 @@ public class EventManager {
     * Unregister all dynamic packet event listeners.
     */
    public void unregisterAllListeners() {
-        listenersMap.clear();
+        this.listenersMap.clear();
+        synchronized (this) {//like booky10 said, the synchronization is necessary here
+            this.listeners = new PacketListenerCommon[0];
+        }
+    }
+
+    //Needs to be synchronized in order to avoid race conditions (for example where the 'listeners' variable
+    //is overridden by its non-up-to-date value, simply because it finished a bit later than the most recent update)
+    private void recalculateListeners() {
+        synchronized (this) {
+            List<PacketListenerCommon> list = new ArrayList<>();
+            //adds from LOWEST to MONITOR, so in the correct order
+            for (PacketListenerPriority priority : PacketListenerPriority.values()) {
+                Set<PacketListenerCommon> set = this.listenersMap.get(priority);
+                if (set != null) list.addAll(set);
+            }
+            this.listeners = list.toArray(new PacketListenerCommon[0]);
+        }
+    }
+
+    //Internal registration methods, specifically separated for lesser overhead when registering an array of Listeners
+
+    private void registerListenerNoRecalculation(PacketListenerCommon listener) {
+        Set<PacketListenerCommon> listenerSet = this.listenersMap.computeIfAbsent(listener.getPriority(), p -> new CopyOnWriteArraySet<>());
+        listenerSet.add(listener);
+    }
+
+    //Returns true if the listener was removed, so a modification occurred
+    private boolean unregisterListenerNoRecalculation(PacketListenerCommon listener) {
+        Set<PacketListenerCommon> listenerSet = this.listenersMap.get(listener.getPriority());
+        return listenerSet != null && listenerSet.remove(listener);
    }
 }
@@ -30,8 +30,7 @@ package com.github.retrooper.packetevents.event;
 */
 public enum PacketListenerPriority {
    /**
-     * Listener is of very low importance.
-     * This listener will be ran first.
+     * This listener will be run first and has little say in the outcome of events.
     */
    LOWEST,

@@ -41,8 +40,11 @@ public enum PacketListenerPriority {
    LOW,

    /**
-     * Default listener priority.
-     * Listener is neither important nor unimportant and may run normally.
+     * The normal listener priority.
+     * If possible, always pick this.
+     * It allows other projects to easily overturn your decisions.
+     * Moreover, it is pretty bold to assume that your project should
+     * always have the final say.
     */
    NORMAL,

@@ -52,13 +54,13 @@ public enum PacketListenerPriority {
    HIGH,

    /**
-     * Listener is of critical importance and wants to decide the cancellation of an event.
+     * Listener is of critical importance. Use this to decide the final state of packets.
     */
    HIGHEST,

    /**
-     * Listener is purely trying to decide the cancellation of an event.
-     * This listener should be ran last.
+     * Only use this priority if you want to perform logic based on the outcome of an event.
+     * Please do not modify packets in this stage.
     */
    MONITOR;

@@ -18,7 +18,6 @@

 package com.github.retrooper.packetevents.event;

-import com.github.retrooper.packetevents.event.simple.*;
 import com.github.retrooper.packetevents.exception.PacketProcessException;
 import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.netty.buffer.ByteBufHelper;
@@ -26,7 +25,7 @@ import com.github.retrooper.packetevents.protocol.PacketSide;
 import com.github.retrooper.packetevents.protocol.packettype.PacketTypeCommon;
 import com.github.retrooper.packetevents.protocol.player.User;

-public class PacketReceiveEvent extends ProtocolPacketEvent<Object> {
+public class PacketReceiveEvent extends ProtocolPacketEvent {
    protected PacketReceiveEvent(Object channel, User user, Object player, Object rawByteBuf,
                                 boolean autoProtocolTranslation) throws PacketProcessException {
        super(PacketSide.CLIENT, channel, user, player, rawByteBuf, autoProtocolTranslation);
@@ -29,7 +29,7 @@ import com.github.retrooper.packetevents.protocol.player.User;
 import java.util.ArrayList;
 import java.util.List;

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

    protected PacketSendEvent(Object channel, User user, Object player, Object rawByteBuf,
@@ -24,11 +24,11 @@ package com.github.retrooper.packetevents.event;
 * @author retrooper
 * @since 1.6.9
 */
-public interface PlayerEvent<T> {
+public interface PlayerEvent {
    /**
     * Associated player.
     *
     * @return Player.
     */
-    T getPlayer();
+    <T> T getPlayer();
 }
@@ -32,18 +32,20 @@ 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.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

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

-public abstract class ProtocolPacketEvent<T> extends PacketEvent implements PlayerEvent<T>, CancellableEvent, UserEvent {
+public abstract class ProtocolPacketEvent extends PacketEvent implements PlayerEvent, CancellableEvent, UserEvent {
    private final Object channel;
    private final ConnectionState connectionState;
    private final User user;
-    private final T player;
+    private Object player;
    private Object byteBuf;
    private final int packetID;
    private final PacketTypeCommon packetType;
@@ -55,7 +57,7 @@ public abstract class ProtocolPacketEvent<T> extends PacketEvent implements Play
    private boolean needsReEncode = PacketEvents.getAPI().getSettings().reEncodeByDefault();

    public ProtocolPacketEvent(PacketSide packetSide, Object channel,
-                               User user, T player, Object byteBuf,
+                               User user, Object player, Object byteBuf,
                               boolean autoProtocolTranslation) throws PacketProcessException {
        this.channel = channel;
        this.user = user;
@@ -92,7 +94,7 @@ public abstract class ProtocolPacketEvent<T> extends PacketEvent implements Play
    }

    public ProtocolPacketEvent(int packetID, PacketTypeCommon packetType, ServerVersion serverVersion, Object channel,
-                               User user, T player, Object byteBuf) {
+                               User user, Object player, Object byteBuf) {
        this.channel = channel;
        this.user = user;
        this.player = player;
@@ -123,8 +125,15 @@ public abstract class ProtocolPacketEvent<T> extends PacketEvent implements Play
        return channel;
    }

+    public SocketAddress getAddress() {
+        return ChannelHelper.remoteAddress(this.channel);
+    }
+
+    /**
+     * <strong>WARNING:</strong> This doesn't support local addresses or unix sockets.
+     */
    public InetSocketAddress getSocketAddress() {
-        return (InetSocketAddress) ChannelHelper.remoteAddress(channel);
+        return (InetSocketAddress) this.getAddress();
    }

    @Override
@@ -133,10 +142,19 @@ public abstract class ProtocolPacketEvent<T> extends PacketEvent implements Play
    }

    @Override
-    public T getPlayer() {
-        return player;
+    public <T> 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.
+     */
    public ConnectionState getConnectionState() {
        return connectionState;
    }
@@ -213,7 +231,7 @@ public abstract class ProtocolPacketEvent<T> extends PacketEvent implements Play
    }

    @Override
-    public ProtocolPacketEvent<?> clone() {
+    public ProtocolPacketEvent clone() {
        return this instanceof PacketReceiveEvent ? ((PacketReceiveEvent) this).clone()
                : ((PacketSendEvent) this).clone();
    }
@@ -20,7 +20,7 @@ package com.github.retrooper.packetevents.event;

 import com.github.retrooper.packetevents.protocol.player.User;

-public class UserLoginEvent extends PacketEvent implements CallableEvent, UserEvent, PlayerEvent<Object> {
+public class UserLoginEvent extends PacketEvent implements CallableEvent, UserEvent, PlayerEvent {
    private final User user;
    private final Object player;

@@ -35,8 +35,8 @@ public class UserLoginEvent extends PacketEvent implements CallableEvent, UserEv
    }

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

    @Override
@@ -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;
+    }
 }
@@ -18,9 +18,11 @@

 package com.github.retrooper.packetevents.injector;

+import com.github.retrooper.packetevents.protocol.PacketSide;
 import com.github.retrooper.packetevents.protocol.player.User;

 public interface ChannelInjector {
+
    default boolean isServerBound() {
        return true;
    }
@@ -33,5 +35,11 @@ public interface ChannelInjector {

    void setPlayer(Object channel, Object player);

+    boolean isPlayerSet(Object channel);
+
    boolean isProxy();
+
+    default PacketSide getPacketSide() {
+        return PacketSide.SERVER;
+    }
 }
@@ -26,31 +26,22 @@ import com.github.retrooper.packetevents.event.PacketSendEvent;
 import com.github.retrooper.packetevents.manager.protocol.ProtocolManager;
 import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.protocol.ConnectionState;
-import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
-import com.github.retrooper.packetevents.protocol.nbt.NBTInt;
-import com.github.retrooper.packetevents.protocol.nbt.NBTList;
-import com.github.retrooper.packetevents.protocol.nbt.NBTString;
-import com.github.retrooper.packetevents.protocol.nbt.NBTType;
 import com.github.retrooper.packetevents.protocol.packettype.PacketType;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.protocol.player.User;
 import com.github.retrooper.packetevents.protocol.player.UserProfile;
-import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.util.LogManager;
+import com.github.retrooper.packetevents.util.mappings.SynchronizedRegistriesHandler;
 import com.github.retrooper.packetevents.wrapper.configuration.server.WrapperConfigServerRegistryData;
-import com.github.retrooper.packetevents.wrapper.configuration.server.WrapperConfigServerRegistryData.RegistryElement;
 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;

-import java.net.InetSocketAddress;
-import java.util.List;
-
+@ApiStatus.Internal
 public class InternalPacketListener extends PacketListenerAbstract {

-    private static final ResourceLocation DIMENSION_TYPE_REGISTRY_KEY =
-            ResourceLocation.minecraft("dimension_type");
-
    public InternalPacketListener() {
        this(PacketListenerPriority.LOWEST);
    }
@@ -76,10 +67,12 @@ public class InternalPacketListener extends PacketListenerAbstract {

            //Map username with channel
            synchronized (channel) {
-                ProtocolManager.CHANNELS.put(profile.getUUID(), channel);
+                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
@@ -92,70 +85,36 @@ public class InternalPacketListener extends PacketListenerAbstract {
            }
        }

-        // The server sends dimension information in configuration phase >= 1.20.2
+        // The server sends dimension information in configuration phase, since 1.20.2
        else if (event.getPacketType() == PacketType.Configuration.Server.REGISTRY_DATA) {
-            WrapperConfigServerRegistryData registryData = new WrapperConfigServerRegistryData(event);
+            WrapperConfigServerRegistryData packet = new WrapperConfigServerRegistryData(event);

-            // Store world data
-            NBTCompound registryDataTag = registryData.getRegistryData();
-            NBTList<NBTCompound> list = null;
-            if (registryDataTag != null) { // <1.20.5
-                list = registryDataTag
-                        .getCompoundTagOrNull(DIMENSION_TYPE_REGISTRY_KEY.toString())
-                        .getCompoundListTagOrNull("value");
-            } else if (DIMENSION_TYPE_REGISTRY_KEY.equals(registryData.getRegistryKey())) { // >=1.20.5
-                // remap to legacy format
-                list = new NBTList<>(NBTType.COMPOUND);
-                List<RegistryElement> elements = registryData.getElements();
-                if (elements != null) {
-                    int i = 0;
-                    for (RegistryElement element : elements) {
-                        NBTCompound tag = new NBTCompound();
-                        tag.setTag("name", new NBTString(element.getId().toString()));
-                        tag.setTag("id", new NBTInt(i++));
-                        if (element.getData() != null) { // may be null because of known packs not being sent
-                            tag.setTag("element", element.getData());
-                        }
-                        list.addTag(tag);
-                    }
-                }
+            if (packet.getElements() != null) { // 1.20.2 to 1.20.5
+                SynchronizedRegistriesHandler.handleRegistry(user, packet,
+                        packet.getRegistryKey(), packet.getElements());
            }
-            if (list != null) {
-                user.setWorldNBT(list);
+            if (packet.getRegistryData() != null) { // since 1.20.5
+                SynchronizedRegistriesHandler.handleLegacyRegistries(user, packet, packet.getRegistryData());
            }
        }

-        // The server sends dimension information in login packet for >= 1.17 and < 1.20.2
+        // The server sends registry info in login packet for 1.16 to 1.20.1
        else if (event.getPacketType() == PacketType.Play.Server.JOIN_GAME) {
            WrapperPlayServerJoinGame joinGame = new WrapperPlayServerJoinGame(event);
            user.setEntityId(joinGame.getEntityId());
-            user.setDimension(joinGame.getDimension());
-            if (event.getServerVersion().isOlderThanOrEquals(ServerVersion.V_1_16_5)) {
-                return; // Fixed world height, no tags are sent to the client
+
+            if (joinGame.getDimensionCodec() != null) { // 1.16 to 1.20.1
+                SynchronizedRegistriesHandler.handleLegacyRegistries(user, joinGame,
+                        joinGame.getDimensionCodec());
            }

-            // Store world data
-            NBTCompound dimensionCodec = joinGame.getDimensionCodec();
-            if (dimensionCodec != null) {
-                NBTList<NBTCompound> list = dimensionCodec
-                        .getCompoundTagOrNull(DIMENSION_TYPE_REGISTRY_KEY.toString())
-                        .getCompoundListTagOrNull("value");
-                user.setWorldNBT(list);
-            }
-
-            // Update world height
-            user.switchDimensionType(joinGame.getServerVersion(), joinGame.getDimension());
+            user.setDimensionType(joinGame.getDimensionType());
        }

        // Respawn is used to switch dimensions
        else if (event.getPacketType() == PacketType.Play.Server.RESPAWN) {
-            WrapperPlayServerRespawn respawn = new WrapperPlayServerRespawn(event);
-            user.setDimension(respawn.getDimension());
-            if (event.getServerVersion().isOlderThanOrEquals(ServerVersion.V_1_16_5)) {
-                return; // Fixed world height, no tags are sent to the client
-            }
-
-            user.switchDimensionType(respawn.getServerVersion(), respawn.getDimension());
+            WrapperPlayServerRespawn packet = new WrapperPlayServerRespawn(event);
+            user.setDimensionType(packet.getDimensionType());
        } else if (event.getPacketType() == PacketType.Play.Server.CONFIGURATION_START) {
            user.setEncoderState(ConnectionState.CONFIGURATION);
        } else if (event.getPacketType() == PacketType.Configuration.Server.CONFIGURATION_END) {
@@ -167,16 +126,18 @@ public class InternalPacketListener extends PacketListenerAbstract {
    public void onPacketReceive(PacketReceiveEvent event) {
        User user = event.getUser();
        if (event.getPacketType() == PacketType.Handshaking.Client.HANDSHAKE) {
-            Object channel = event.getChannel();
-            InetSocketAddress address = event.getSocketAddress();
-            WrapperHandshakingClientHandshake handshake = new WrapperHandshakingClientHandshake(event);
-            ConnectionState nextState = handshake.getNextConnectionState();
-            ClientVersion clientVersion = handshake.getClientVersion();
-            //Update client version for this event call(and user)
+            WrapperHandshakingClientHandshake packet = new WrapperHandshakingClientHandshake(event);
+            ClientVersion clientVersion = packet.getClientVersion();
+            ConnectionState state = packet.getNextConnectionState();
+
+            LogManager logger = PacketEvents.getAPI().getLogManager();
+            if (logger.isDebug()) {
+                logger.debug("Processed handshake for " + event.getAddress() + ": "
+                        + state.name() + " / " + packet.getClientVersion().getReleaseName());
+            }
+
            user.setClientVersion(clientVersion);
-            PacketEvents.getAPI().getLogManager().debug("Processed " + address.getHostString() + ":" + address.getPort() + "'s client version. Client Version: " + clientVersion.getReleaseName());
-            //Transition into LOGIN or STATUS connection state immediately, to remain in sync with vanilla
-            user.setConnectionState(nextState);
+            user.setConnectionState(state);
        } else if (event.getPacketType() == PacketType.Login.Client.LOGIN_SUCCESS_ACK) {
            user.setDecoderState(ConnectionState.CONFIGURATION);
        } else if (event.getPacketType() == PacketType.Play.Client.CONFIGURATION_ACK) {
@@ -19,10 +19,12 @@
 package com.github.retrooper.packetevents.manager.player;

 import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.event.ProtocolPacketEvent;
 import com.github.retrooper.packetevents.protocol.ConnectionState;
 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.ApiStatus;
 import org.jetbrains.annotations.NotNull;

 public interface PlayerManager {
@@ -34,7 +36,17 @@ public interface PlayerManager {

    User getUser(@NotNull Object player);

-    default ConnectionState getConnectionState(@NotNull Object player) {
+    /**
+     * <strong>WARNING</strong>: Usage of this method should be avoided. Please use either
+     * {@link User#getDecoderState()} or {@link User#getEncoderState()}.<br>
+     * To access the specific state a packet event was sent/received in, use {@link ProtocolPacketEvent#getConnectionState()}.
+     * <p>
+     * Since 1.20.2, the Minecraft protocol allows the decoder/encoder connection states to de-sync.
+     *
+     * @throws IllegalStateException if encoder/decoder connection states do not match
+     */
+    @ApiStatus.Obsolete
+    default ConnectionState getConnectionState(@NotNull Object player) throws IllegalStateException {
        return getUser(player).getConnectionState();
    }

@@ -33,8 +33,10 @@ import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;

 public interface ProtocolManager {
+    @ApiStatus.Internal
    Map<UUID, Object> CHANNELS = new ConcurrentHashMap<>();
    // Use SocketAddress because ProtocolLib wraps Channels with NettyChannelProxy class
+    @ApiStatus.Internal
    Map<Object, User> USERS = new ConcurrentHashMap<>();

    default Collection<User> getUsers() {
@@ -104,10 +106,13 @@ public interface ProtocolManager {
        PacketWrapper<?>[] wrappers = PacketTransformationUtil.transform(wrapper);
        Object[] buffers = new Object[wrappers.length];
        for (int i = 0; i < wrappers.length; i++) {
-            wrappers[i].prepareForSend(channel, outgoing);
-            buffers[i] = wrappers[i].buffer;
-            // Fix race condition when sending packets to multiple people (due to when the buffer is freed)
-            wrappers[i].buffer = null;
+            PacketWrapper<?> wrappper = wrappers[i];
+            synchronized (wrappper.bufferLock) {
+                wrappper.prepareForSend(channel, outgoing);
+                buffers[i] = wrappper.buffer;
+                // Fix race condition when sending packets to multiple people (due to when the buffer is freed)
+                wrappper.buffer = null;
+            }
        }
        return buffers;
    }
@@ -147,11 +152,13 @@ public interface ProtocolManager {
        return USERS.get(pipeline);
    }

+    @ApiStatus.Internal
    default User removeUser(Object channel) {
        Object pipeline = ChannelHelper.getPipeline(channel);
        return USERS.remove(pipeline);
    }

+    @ApiStatus.Internal
    default void setUser(Object channel, User user) {
        synchronized (channel) {
            Object pipeline = ChannelHelper.getPipeline(channel);
@@ -163,4 +170,23 @@ public interface ProtocolManager {
    default Object getChannel(UUID uuid) {
        return CHANNELS.get(uuid);
    }
+
+    @ApiStatus.Internal
+    default void setChannel(UUID uuid, Object channel) {
+        CHANNELS.put(uuid, channel);
+    }
+
+    @ApiStatus.Internal
+    default void removeChannel(Object channel) {
+        CHANNELS.values().remove(channel);
+    }
+
+    @ApiStatus.Internal
+    default void removeChannelById(UUID uuid) {
+        CHANNELS.remove(uuid);
+    }
+
+    default boolean hasChannel(Object channel) {
+        return CHANNELS.containsValue(channel);
+    }
 }
@@ -18,6 +18,10 @@

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

+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.protocol.player.User;
+import org.jetbrains.annotations.Nullable;
+
 public interface ServerManager {
    /**
     * Get the server version.
@@ -34,4 +38,20 @@ public interface ServerManager {
    default SystemOS getOS() {
        return SystemOS.getOS();
    }
+
+    /**
+     * Gets a platform-specific network-synchronized-registries cache key.
+     * <p>
+     * This tells packetevents, if a registry should be cached or read again. On
+     * backend servers with global registries, this may be a constant value. On
+     * proxy servers with per-server registries, this may be a value which depends
+     * on the current server the {@link User} is on.
+     *
+     * @param user    the {@link User} for which the registry gets read
+     * @param version the version the packet is for
+     * @return some value or null for no caching at all
+     */
+    default @Nullable Object getRegistryCacheKey(User user, ClientVersion version) {
+        return null; // no caching
+    }
 }
@@ -32,9 +32,10 @@ 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_2(109), V_1_9_4(110),
+    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
    V_1_10(210), V_1_10_1(210), V_1_10_2(210),
    V_1_11(315), V_1_11_2(316),
@@ -49,6 +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), V_1_21_6(771), V_1_21_7(772), V_1_21_8(772),
    //TODO UPDATE Add server version constant
    ERROR(-1, true);

@@ -24,8 +24,13 @@ public interface ByteBufAllocationOperator {
    Object copiedBuffer(byte[] bytes);

    Object buffer();
+    Object buffer(int initialCapacity);

    Object directBuffer();
+    Object directBuffer(int initialCapacity);

    Object compositeBuffer();
+    Object compositeBuffer(int maxNumComponents);
+
+    Object emptyBuffer();
 }
@@ -103,6 +103,14 @@ public class ByteBufHelper {
        PacketEvents.getAPI().getNettyManager().getByteBufOperator().writeShort(buffer, value);
    }

+    public static int readMedium(Object buffer) {
+        return PacketEvents.getAPI().getNettyManager().getByteBufOperator().readMedium(buffer);
+    }
+
+    public static void writeMedium(Object buffer, int value) {
+        PacketEvents.getAPI().getNettyManager().getByteBufOperator().writeMedium(buffer, value);
+    }
+
    public static int readInt(Object buffer) {
        return PacketEvents.getAPI().getNettyManager().getByteBufOperator().readInt(buffer);
    }
@@ -231,6 +239,19 @@ public class ByteBufHelper {
        return PacketEvents.getAPI().getNettyManager().getByteBufOperator().resetWriterIndex(buffer);
    }

+    public static Object allocateNewBuffer(Object buffer) {
+        return PacketEvents.getAPI().getNettyManager().getByteBufOperator().allocateNewBuffer(buffer);
+    }
+
+    public static int getByteSize(int value) {
+        for (int i = 1; i < 5; ++i) {
+            if ((value & -1 << i * 7) == 0) {
+                return i;
+            }
+        }
+        return 5;
+    }
+
    public static int readVarInt(Object buffer) {
        int value = 0;
        int length = 0;
@@ -42,27 +42,27 @@ public class ByteBufInputStream extends InputStream implements DataInput {
        this(buffer, ByteBufHelper.readableBytes(buffer), releaseOnClose);
    }

-    public ByteBufInputStream(Object buffer, int length, boolean releaseOnClose) {
+    public ByteBufInputStream(Object buffer, int maxLength, boolean releaseOnClose) {
        this.lineBuf = new StringBuilder();
        if (buffer == null) {
            throw new NullPointerException("buffer");
-        } else if (length < 0) {
+        } else if (maxLength < 0) {
            if (releaseOnClose) {
                ByteBufHelper.release(buffer);
            }

-            throw new IllegalArgumentException("length: " + length);
-        } else if (length > ByteBufHelper.readableBytes(buffer)) {
+            throw new IllegalArgumentException("maxLength: " + maxLength);
+        } else if (ByteBufHelper.readableBytes(buffer) > maxLength) {
            if (releaseOnClose) {
                ByteBufHelper.release(buffer);
            }

-            throw new IndexOutOfBoundsException("Too many bytes to be read - Needs " + length + ", maximum is " + ByteBufHelper.readableBytes(buffer));
+            throw new IndexOutOfBoundsException("Too many bytes to be read - Found " + ByteBufHelper.readableBytes(buffer) + ", maximum is " + maxLength);
        } else {
            this.releaseOnClose = releaseOnClose;
            this.buffer = buffer;
            this.startIndex = ByteBufHelper.readerIndex(buffer);
-            this.endIndex = this.startIndex + length;
+            this.endIndex = this.startIndex + ByteBufHelper.readableBytes(buffer);
            ByteBufHelper.markReaderIndex(buffer);
        }
    }
@@ -35,12 +35,14 @@ public interface ByteBufOperator {

    byte readByte(Object buffer);
    short readShort(Object buffer);
+    int readMedium(Object buffer);
    int readInt(Object buffer);
    long readUnsignedInt(Object buffer);
    long readLong(Object buffer);

    void writeByte(Object buffer, int value);
    void writeShort(Object buffer, int value);
+    void writeMedium(Object buffer, int value);
    void writeInt(Object buffer, int value);
    void writeLong(Object buffer, long value);

@@ -72,6 +74,8 @@ public interface ByteBufOperator {
    Object markWriterIndex(Object buffer);
    Object resetWriterIndex(Object buffer);

+    Object allocateNewBuffer(Object buffer);
+
    default float readFloat(Object buffer) {
        return Float.intBitsToFloat(readInt(buffer));
    }
@@ -40,4 +40,20 @@ public class UnpooledByteBufAllocationHelper {
    public static Object compositeBuffer() {
        return PacketEvents.getAPI().getNettyManager().getByteBufAllocationOperator().compositeBuffer();
    }
+
+    public static Object buffer(int initialCapacity) {
+        return PacketEvents.getAPI().getNettyManager().getByteBufAllocationOperator().buffer(initialCapacity);
+    }
+
+    public static Object directBuffer(int initialCapacity) {
+        return PacketEvents.getAPI().getNettyManager().getByteBufAllocationOperator().directBuffer(initialCapacity);
+    }
+
+    public static Object compositeBuffer(int maxNumComponents) {
+        return PacketEvents.getAPI().getNettyManager().getByteBufAllocationOperator().compositeBuffer(maxNumComponents);
+    }
+
+    public static Object emptyBuffer() {
+        return PacketEvents.getAPI().getNettyManager().getByteBufAllocationOperator().emptyBuffer();
+    }
 }
@@ -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,
+    ;
+}
@@ -18,7 +18,35 @@

 package com.github.retrooper.packetevents.protocol.attribute;

+import com.github.retrooper.packetevents.PacketEvents;
 import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.util.MathUtil;

 public interface Attribute extends MappedEntity {
+
+    @Override
+    default ResourceLocation getName() {
+        return this.getName(PacketEvents.getAPI().getServerManager().getVersion().toClientVersion());
+    }
+
+    ResourceLocation getName(ClientVersion version);
+
+    default double sanitizeValue(double value) {
+        return this.sanitizeValue(value, PacketEvents.getAPI().getServerManager().getVersion().toClientVersion());
+    }
+
+    default double sanitizeValue(double value, ClientVersion version) {
+        if (!Double.isNaN(value)) {
+            return MathUtil.clamp(value, this.getMinValue(), this.getMaxValue());
+        }
+        return this.getMinValue();
+    }
+
+    double getDefaultValue();
+
+    double getMinValue();
+
+    double getMaxValue();
 }
@@ -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();
+    }
+}
@@ -20,87 +20,353 @@ package com.github.retrooper.packetevents.protocol.attribute;

 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.resources.ResourceLocation;
-import com.github.retrooper.packetevents.util.mappings.MappingHelper;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilder;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
 import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;

-import java.util.HashMap;
-import java.util.Map;
+public final class Attributes {

-public class Attributes {
+    private static final VersionedRegistry<Attribute> REGISTRY = new VersionedRegistry<>("attribute");

-    private static final Map<String, Attribute> ATTRIBUTE_MAP = new HashMap<>();
-    private static final Map<Byte, Map<Integer, Attribute>> ATTRIBUTE_ID_MAP = new HashMap<>();
-    private static final TypesBuilder TYPES_BUILDER = new TypesBuilder("attribute/attribute_mappings");
-
-    public static Attribute define(String key) {
-        TypesBuilderData data = TYPES_BUILDER.define(key);
-        Attribute attribute = new Attribute() {
-            @Override
-            public ResourceLocation getName() {
-                return data.getName();
-            }
-
-            @Override
-            public int getId(ClientVersion version) {
-                return MappingHelper.getId(version, TYPES_BUILDER, data);
-            }
-
-            @Override
-            public boolean equals(Object obj) {
-                if (obj instanceof Attribute) {
-                    return this.getName().equals(((Attribute) obj).getName());
-                }
-                return false;
-            }
-        };
-
-        MappingHelper.registerMapping(TYPES_BUILDER, ATTRIBUTE_MAP, ATTRIBUTE_ID_MAP, attribute);
-        return attribute;
+    private Attributes() {
+    }
+
+    private static Attribute define(
+            String key, @Nullable String legacyPrefix,
+            double def, double min, double max
+    ) {
+        return REGISTRY.define(key, data ->
+                new StaticAttribute(data, legacyPrefix, def, min, max));
+    }
+
+    public static VersionedRegistry<Attribute> getRegistry() {
+        return REGISTRY;
    }

-    // with minecraft:key
    public static Attribute getByName(String name) {
-        return ATTRIBUTE_MAP.get(name);
+        // "remapping" to support < 1.21.2
+        String normedName = ResourceLocation.normString(name);
+        if (normedName.startsWith(ResourceLocation.VANILLA_NAMESPACE + ":generic.")
+                || normedName.startsWith(ResourceLocation.VANILLA_NAMESPACE + ":player.")
+                || normedName.startsWith(ResourceLocation.VANILLA_NAMESPACE + ":zombie.")) {
+            normedName = normedName.substring(normedName.indexOf('.') + 1);
+        }
+        return REGISTRY.getByName(normedName);
    }

    public static Attribute getById(ClientVersion version, int id) {
-        int index = TYPES_BUILDER.getDataIndex(version);
-        Map<Integer, Attribute> idMap = ATTRIBUTE_ID_MAP.get((byte) index);
-        return idMap.get(id);
+        return REGISTRY.getById(version, id);
    }

-    public static final Attribute GENERIC_ARMOR = define("generic.armor");
-    public static final Attribute GENERIC_ARMOR_TOUGHNESS = define("generic.armor_toughness");
-    public static final Attribute GENERIC_ATTACK_DAMAGE = define("generic.attack_damage");
-    public static final Attribute GENERIC_ATTACK_KNOCKBACK = define("generic.attack_knockback");
-    public static final Attribute GENERIC_ATTACK_SPEED = define("generic.attack_speed");
-    public static final Attribute GENERIC_FLYING_SPEED = define("generic.flying_speed");
-    public static final Attribute GENERIC_FOLLOW_RANGE = define("generic.follow_range");
-    @ApiStatus.Obsolete // renamed in 1.20.5
-    public static final Attribute HORSE_JUMP_STRENGTH = define("horse.jump_strength");
-    public static final Attribute GENERIC_KNOCKBACK_RESISTANCE = define("generic.knockback_resistance");
-    public static final Attribute GENERIC_LUCK = define("generic.luck");
-    public static final Attribute GENERIC_MAX_HEALTH = define("generic.max_health");
-    public static final Attribute GENERIC_MOVEMENT_SPEED = define("generic.movement_speed");
-    public static final Attribute ZOMBIE_SPAWN_REINFORCEMENTS = define("zombie.spawn_reinforcements");
+    public static final Attribute ARMOR = define("armor",
+            "generic", 0d, 0d, 30d);
+    public static final Attribute ARMOR_TOUGHNESS = define("armor_toughness",
+            "generic", 0d, 0d, 20d);
+    public static final Attribute ATTACK_DAMAGE = define("attack_damage",
+            "generic", 2d, 0d, 2048d);
+    public static final Attribute ATTACK_KNOCKBACK = define("attack_knockback",
+            "generic", 0d, 0d, 5d);
+    public static final Attribute ATTACK_SPEED = define("attack_speed",
+            "generic", 4d, 0d, 1024d);
+    public static final Attribute FLYING_SPEED = define("flying_speed",
+            "generic", 0.4d, 0d, 1024d);
+    public static final Attribute FOLLOW_RANGE = define("follow_range",
+            "generic", 32d, 0d, 2048d);
+    public static final Attribute KNOCKBACK_RESISTANCE = define("knockback_resistance",
+            "generic", 0d, 0d, 1d);
+    public static final Attribute LUCK = define("luck",
+            "generic", 0d, -1024d, 1024d);
+    public static final Attribute MAX_HEALTH = define("max_health",
+            "generic", 20d, 1d, 1024d);
+    public static final Attribute MOVEMENT_SPEED = define("movement_speed",
+            "generic", 0.7d, 0d, 1024d);
+    public static final Attribute SPAWN_REINFORCEMENTS = define("spawn_reinforcements",
+            "zombie", 0d, 0d, 1d);

-    // Added in 1.20.2
-    public static final Attribute GENERIC_MAX_ABSORPTION = define("generic.max_absorption");
+    /**
+     * Added with 1.20.2
+     */
+    public static final Attribute MAX_ABSORPTION = define("max_absorption",
+            "generic", 0d, 0d, 2048d);

-    // added in 1.20.5
-    public static final Attribute PLAYER_BLOCK_BREAK_SPEED = define("player.block_break_speed");
-    public static final Attribute PLAYER_BLOCK_INTERACTION_RANGE = define("player.block_interaction_range");
-    public static final Attribute PLAYER_ENTITY_INTERACTION_RANGE = define("player.entity_interaction_range");
-    public static final Attribute GENERIC_FALL_DAMAGE_MULTIPLIER = define("generic.fall_damage_multiplier");
-    public static final Attribute GENERIC_GRAVITY = define("generic.gravity");
-    public static final Attribute GENERIC_JUMP_STRENGTH = define("generic.jump_strength");
-    public static final Attribute GENERIC_SAFE_FALL_DISTANCE = define("generic.safe_fall_distance");
-    public static final Attribute GENERIC_SCALE = define("generic.scale");
-    public static final Attribute GENERIC_STEP_HEIGHT = define("generic.step_height");
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute BLOCK_BREAK_SPEED = define("block_break_speed",
+            "player", 1d, 0d, 1024d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute BLOCK_INTERACTION_RANGE = define("block_interaction_range",
+            "player", 4.5d, 0d, 64d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute ENTITY_INTERACTION_RANGE = define("entity_interaction_range",
+            "player", 3d, 0d, 64d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute FALL_DAMAGE_MULTIPLIER = define("fall_damage_multiplier",
+            "generic", 1d, 0d, 100d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute GRAVITY = define("gravity",
+            "generic", 0.08d, -1d, 1d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute JUMP_STRENGTH = define("jump_strength",
+            "generic", 0.42d, 0d, 32d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute SAFE_FALL_DISTANCE = define("safe_fall_distance",
+            "generic", 3d, 0d, 1024d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute SCALE = define("scale",
+            "generic", 1d, 1d / 16d, 16d);
+    /**
+     * Added with 1.20.5
+     */
+    public static final Attribute STEP_HEIGHT = define("step_height",
+            "generic", 0.6d, 0d, 10d);
+
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute BURNING_TIME = define("burning_time",
+            "generic", 0d, 1d, 1024d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute EXPLOSION_KNOCKBACK_RESISTANCE = define("explosion_knockback_resistance",
+            "generic", 0d, 0d, 1d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute MINING_EFFICIENCY = define("mining_efficiency",
+            "player", 0d, 0d, 1024d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute MOVEMENT_EFFICIENCY = define("movement_efficiency",
+            "generic", 0d, 0d, 1d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute OXYGEN_BONUS = define("oxygen_bonus",
+            "generic", 0d, 0d, 1024d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute SNEAKING_SPEED = define("sneaking_speed",
+            "player", 0.3d, 0d, 1d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute SUBMERGED_MINING_SPEED = define("submerged_mining_speed",
+            "player", 0.2d, 0d, 20d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute SWEEPING_DAMAGE_RATIO = define("sweeping_damage_ratio",
+            "player", 0d, 0d, 1d);
+    /**
+     * Added with 1.21
+     */
+    public static final Attribute WATER_MOVEMENT_EFFICIENCY = define("water_movement_efficiency",
+            "generic", 0d, 0d, 1d);
+
+    /**
+     * Added with 1.21.2
+     */
+    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}
+     */
+    @ApiStatus.Obsolete
+    public static final Attribute HORSE_JUMP_STRENGTH = define("horse.jump_strength",
+            null, 0.7d, 0d, 2d);
+
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_ARMOR = ARMOR;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_ARMOR_TOUGHNESS = ARMOR_TOUGHNESS;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_ATTACK_DAMAGE = ATTACK_DAMAGE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_ATTACK_KNOCKBACK = ATTACK_KNOCKBACK;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_ATTACK_SPEED = ATTACK_SPEED;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_FLYING_SPEED = FLYING_SPEED;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_FOLLOW_RANGE = FOLLOW_RANGE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_KNOCKBACK_RESISTANCE = KNOCKBACK_RESISTANCE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_LUCK = LUCK;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_MAX_HEALTH = MAX_HEALTH;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_MOVEMENT_SPEED = MOVEMENT_SPEED;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute ZOMBIE_SPAWN_REINFORCEMENTS = SPAWN_REINFORCEMENTS;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_MAX_ABSORPTION = MAX_ABSORPTION;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_BLOCK_BREAK_SPEED = BLOCK_BREAK_SPEED;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_BLOCK_INTERACTION_RANGE = BLOCK_INTERACTION_RANGE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_ENTITY_INTERACTION_RANGE = ENTITY_INTERACTION_RANGE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_FALL_DAMAGE_MULTIPLIER = FALL_DAMAGE_MULTIPLIER;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_GRAVITY = GRAVITY;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_JUMP_STRENGTH = JUMP_STRENGTH;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_SAFE_FALL_DISTANCE = SAFE_FALL_DISTANCE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_SCALE = SCALE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_STEP_HEIGHT = STEP_HEIGHT;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_BURNING_TIME = BURNING_TIME;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_EXPLOSION_KNOCKBACK_RESISTANCE = EXPLOSION_KNOCKBACK_RESISTANCE;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_MINING_EFFICIENCY = MINING_EFFICIENCY;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_MOVEMENT_EFFICIENCY = MOVEMENT_EFFICIENCY;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_OXYGEN_BONUS = OXYGEN_BONUS;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_SNEAKING_SPEED = SNEAKING_SPEED;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_SUBMERGED_MINING_SPEED = SUBMERGED_MINING_SPEED;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute PLAYER_SWEEPING_DAMAGE_RATIO = SWEEPING_DAMAGE_RATIO;
+    /**
+     * All attribute "type" prefixes were removed with 1.21.2
+     */
+    @Deprecated
+    public static final Attribute GENERIC_WATER_MOVEMENT_EFFICIENCY = WATER_MOVEMENT_EFFICIENCY;

    static {
-        TYPES_BUILDER.unloadFileMappings();
+        REGISTRY.unloadMappings();
    }
 }
@@ -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 +1,71 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2024 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.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.resources.ResourceLocation;
+import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+
+public class StaticAttribute extends AbstractMappedEntity implements Attribute {
+
+    private final @Nullable ResourceLocation legacyName;
+    private final double defaultValue;
+    private final double minValue;
+    private final double maxValue;
+
+    @ApiStatus.Internal
+    public StaticAttribute(
+            @Nullable TypesBuilderData data, String legacyPrefix,
+            double defaultValue, double minValue, double maxValue
+    ) {
+        super(data);
+        this.defaultValue = defaultValue;
+        this.minValue = minValue;
+        this.maxValue = maxValue;
+        this.legacyName = legacyPrefix == null || data == null ? null : new ResourceLocation(
+                data.getName().getNamespace(), legacyPrefix + "." + data.getName().getKey());
+    }
+
+    @Override
+    public ResourceLocation getName(ClientVersion version) {
+        if (this.data == null) {
+            throw new UnsupportedOperationException();
+        }
+        return version.isNewerThanOrEquals(ClientVersion.V_1_21_2) || this.legacyName == null
+                ? this.data.getName() : this.legacyName;
+    }
+
+    @Override
+    public double getDefaultValue() {
+        return this.defaultValue;
+    }
+
+    @Override
+    public double getMinValue() {
+        return this.minValue;
+    }
+
+    @Override
+    public double getMaxValue() {
+        return this.maxValue;
+    }
+}
@@ -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);
+    }
+}
@@ -18,8 +18,150 @@

 package com.github.retrooper.packetevents.protocol.chat;

+import com.github.retrooper.packetevents.protocol.chat.message.ChatMessage_v1_19_1;
+import com.github.retrooper.packetevents.protocol.mapper.CopyableEntity;
+import com.github.retrooper.packetevents.protocol.mapper.DeepComparableEntity;
 import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+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.ClientVersion;
+import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+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;

-public interface ChatType extends MappedEntity {
+import java.util.Objects;

+import static com.github.retrooper.packetevents.util.adventure.AdventureIndexUtil.indexValueOrThrow;
+
+public interface ChatType extends MappedEntity, CopyableEntity<ChatType>, DeepComparableEntity {
+
+    @UnknownNullability("only nullable for 1.19")
+    ChatTypeDecoration getChatDecoration();
+
+    @ApiStatus.Obsolete(since = "1.19.1")
+    @Nullable ChatTypeDecoration getOverlayDecoration();
+
+    @UnknownNullability("only nullable for 1.19")
+    ChatTypeDecoration getNarrationDecoration();
+
+    @ApiStatus.Obsolete(since = "1.19.1")
+    @Nullable NarrationPriority getNarrationPriority();
+
+    static ChatType readDirect(PacketWrapper<?> wrapper) {
+        ChatTypeDecoration chatDecoration = ChatTypeDecoration.read(wrapper);
+        ChatTypeDecoration narrationDecoration = ChatTypeDecoration.read(wrapper);
+        return new StaticChatType(chatDecoration, narrationDecoration);
+    }
+
+    static void writeDirect(PacketWrapper<?> wrapper, ChatType chatType) {
+        ChatTypeDecoration.write(wrapper, chatType.getChatDecoration());
+        ChatTypeDecoration.write(wrapper, chatType.getNarrationDecoration());
+    }
+
+    static ChatType decode(NBT nbt, ClientVersion version, @Nullable TypesBuilderData data) {
+        // everything is nullable in 1.19, even the chat format!
+        NBTCompound compound = (NBTCompound) nbt;
+        NBTCompound chatTag = compound.getCompoundTagOrNull("chat");
+        NBTCompound narrationTag = compound.getCompoundTagOrNull("narration");
+
+        ChatTypeDecoration overlay = null;
+        NarrationPriority narrationPriority = null;
+        if (version.isOlderThan(ClientVersion.V_1_19_1)) {
+            NBTCompound overlayTag = compound.getCompoundTagOrNull("overlay");
+            if (overlayTag != null) {
+                // why is this nullable? why is this wrapped? There is no reason to wrap this...
+                overlayTag = overlayTag.getCompoundTagOrNull("description");
+                if (overlayTag != null) {
+                    overlay = ChatTypeDecoration.decode(overlayTag, version);
+                }
+            }
+            if (chatTag != null) {
+                chatTag = chatTag.getCompoundTagOrNull("description");
+            }
+            if (narrationTag != null) {
+                // the priority is the ONLY value which isn't nullable!
+                narrationPriority = indexValueOrThrow(NarrationPriority.ID_INDEX,
+                        narrationTag.getStringTagValueOrThrow("priority"));
+                narrationTag = narrationTag.getCompoundTagOrNull("description");
+            }
+        } else {
+            // ensure this isn't null in everything but 1.19
+            Objects.requireNonNull(chatTag, "NBT chat does not exist");
+            Objects.requireNonNull(narrationTag, "NBT narration does not exist");
+        }
+
+        ChatTypeDecoration chat = chatTag == null ? null : ChatTypeDecoration.decode(chatTag, version);
+        ChatTypeDecoration narration = narrationTag == null ? null : ChatTypeDecoration.decode(narrationTag, version);
+        return new StaticChatType(data, chat, overlay, narration, narrationPriority);
+    }
+
+    static NBT encode(ChatType chatType, ClientVersion version) {
+        NBTCompound compound = new NBTCompound();
+        NBT chatTag = chatType.getChatDecoration() == null ? null :
+                ChatTypeDecoration.encode(chatType.getChatDecoration(), version);
+        NBT narrationTag = chatType.getNarrationDecoration() == null ? null :
+                ChatTypeDecoration.encode(chatType.getNarrationDecoration(), version);
+
+        if (version.isOlderThan(ClientVersion.V_1_19_1)) {
+            ChatTypeDecoration overlayDeco = chatType.getOverlayDecoration();
+            if (overlayDeco != null) {
+                NBTCompound overlayCompound = new NBTCompound();
+                overlayCompound.setTag("description",
+                        ChatTypeDecoration.encode(overlayDeco, version));
+                compound.setTag("overlay", overlayCompound);
+            }
+            if (narrationTag != null) {
+                NBTCompound narrationCompound = new NBTCompound();
+                narrationCompound.setTag("description", narrationTag);
+                if (chatType.getNarrationPriority() != null) {
+                    narrationCompound.setTag("priority", new NBTString(chatType.getNarrationPriority().getId()));
+                }
+                narrationTag = narrationCompound;
+            }
+            if (chatTag != null) {
+                NBTCompound chatCompound = new NBTCompound();
+                chatCompound.setTag("description", chatTag);
+                chatTag = chatCompound;
+            }
+        }
+
+        if (chatTag != null) {
+            compound.setTag("chat", chatTag);
+        }
+        if (narrationTag != null) {
+            compound.setTag("narration", narrationTag);
+        }
+        return compound;
+    }
+
+    class Bound extends ChatMessage_v1_19_1.ChatTypeBoundNetwork {
+        public Bound(ChatType type, Component name, @Nullable Component targetName) {
+            super(type, name, targetName);
+        }
+    }
+
+    @ApiStatus.Obsolete(since = "1.19.1")
+    enum NarrationPriority {
+
+        CHAT("chat"),
+        SYSTEM("system");
+
+        public static final Index<String, NarrationPriority> ID_INDEX = Index.create(
+                NarrationPriority.class, NarrationPriority::getId);
+
+        private final String id;
+
+        NarrationPriority(String id) {
+            this.id = id;
+        }
+
+        public String getId() {
+            return this.id;
+        }
+    }
 }
@@ -0,0 +1,205 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2024 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;
+
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
+import com.github.retrooper.packetevents.protocol.nbt.NBTList;
+import com.github.retrooper.packetevents.protocol.nbt.NBTString;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+import com.github.retrooper.packetevents.util.adventure.AdventureSerializer;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.ComponentLike;
+import net.kyori.adventure.text.format.Style;
+import net.kyori.adventure.util.Index;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.BiFunction;
+
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.Parameter.CONTENT;
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.Parameter.SENDER;
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.Parameter.TARGET;
+import static com.github.retrooper.packetevents.util.adventure.AdventureIndexUtil.indexValueOrThrow;
+import static java.util.Arrays.asList;
+import static net.kyori.adventure.text.format.NamedTextColor.GRAY;
+import static net.kyori.adventure.text.format.Style.empty;
+import static net.kyori.adventure.text.format.Style.style;
+import static net.kyori.adventure.text.format.TextDecoration.ITALIC;
+
+public class ChatTypeDecoration {
+
+    private final String translationKey;
+    private final List<Parameter> parameters;
+    private final Style style;
+
+    public ChatTypeDecoration(String translationKey, List<Parameter> parameters, Style style) {
+        this.translationKey = translationKey;
+        this.parameters = Collections.unmodifiableList(new ArrayList<>(parameters));
+        this.style = style;
+    }
+
+    public static ChatTypeDecoration read(PacketWrapper<?> wrapper) {
+        String translationKey = wrapper.readString();
+        List<Parameter> parameters = wrapper.readList(ew -> ew.readEnum(Parameter.values()));
+        Style style = wrapper.readStyle();
+        return new ChatTypeDecoration(translationKey, parameters, style);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ChatTypeDecoration decoration) {
+        wrapper.writeString(decoration.translationKey);
+        wrapper.writeList(decoration.parameters, PacketWrapper::writeEnum);
+        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");
+        List<Parameter> params;
+        if (paramsTag instanceof NBTList<?>) {
+            params = new ArrayList<>();
+            NBTList<?> paramsTagList = (NBTList<?>) paramsTag;
+            for (NBT paramTag : paramsTagList.getTags()) {
+                String paramId = ((NBTString) paramTag).getValue();
+                params.add(indexValueOrThrow(Parameter.ID_INDEX, paramId));
+            }
+        } else {
+            String paramId = ((NBTString) paramsTag).getValue();
+            params = Collections.singletonList(indexValueOrThrow(Parameter.ID_INDEX, paramId));
+        }
+        NBTCompound styleTag = compound.getCompoundTagOrNull("style");
+        Style style = styleTag == null ? empty() :
+                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()));
+        }
+
+        NBTCompound compound = new NBTCompound();
+        compound.setTag("translation_key", new NBTString(decoration.translationKey));
+        compound.setTag("parameters", paramsTag);
+        if (!decoration.style.isEmpty()) {
+            compound.setTag("style", wrapper.getSerializers()
+                    .nbt().serializeStyle(decoration.style, wrapper));
+        }
+        return compound;
+    }
+
+    public static ChatTypeDecoration withSender(String translationKey) {
+        return new ChatTypeDecoration(translationKey, asList(SENDER, CONTENT), empty());
+    }
+
+    public static ChatTypeDecoration incomingDirectMessage(String translationKey) {
+        return new ChatTypeDecoration(translationKey, asList(SENDER, CONTENT),
+                style(GRAY, ITALIC));
+    }
+
+    public static ChatTypeDecoration outgoingDirectMessage(String translationKey) {
+        return new ChatTypeDecoration(translationKey, asList(TARGET, CONTENT),
+                style(GRAY, ITALIC));
+    }
+
+    public static ChatTypeDecoration teamMessage(String translationKey) {
+        return new ChatTypeDecoration(translationKey, asList(TARGET, SENDER, CONTENT), empty());
+    }
+
+    public Component decorate(Component component, ChatType.Bound chatType) {
+        ComponentLike[] components = new ComponentLike[this.parameters.size()];
+        for (int i = 0; i < components.length; i++) {
+            Parameter parameter = this.parameters.get(i);
+            components[i] = parameter.selector.apply(component, chatType);
+        }
+        return Component.translatable(this.translationKey, null, this.style, components);
+    }
+
+    public String getTranslationKey() {
+        return this.translationKey;
+    }
+
+    public List<Parameter> getParameters() {
+        return this.parameters;
+    }
+
+    public Style getStyle() {
+        return this.style;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (!(obj instanceof ChatTypeDecoration)) return false;
+        ChatTypeDecoration that = (ChatTypeDecoration) obj;
+        if (!this.translationKey.equals(that.translationKey)) return false;
+        if (!this.parameters.equals(that.parameters)) return false;
+        return this.style.equals(that.style);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.translationKey, this.parameters, this.style);
+    }
+
+    public enum Parameter {
+
+        SENDER("sender", (component, type) -> type.getName()),
+        TARGET("target", (component, type) -> type.getTargetName() != null
+                ? type.getTargetName() : Component.empty()),
+        CONTENT("content", (component, type) -> component);
+
+        public static final Index<String, Parameter> ID_INDEX = Index.create(
+                Parameter.class, Parameter::getId);
+
+        private final String id;
+        private final BiFunction<Component, ChatType.Bound, Component> selector;
+
+        Parameter(String id, BiFunction<Component, ChatType.Bound, Component> selector) {
+            this.id = id;
+            this.selector = selector;
+        }
+
+        public String getId() {
+            return this.id;
+        }
+
+        @Deprecated
+        public static @Nullable Parameter valueByName(String id) {
+            return ID_INDEX.value(id);
+        }
+    }
+}
+
@@ -19,54 +19,67 @@
 package com.github.retrooper.packetevents.protocol.chat;

 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
-import com.github.retrooper.packetevents.resources.ResourceLocation;
-import com.github.retrooper.packetevents.util.mappings.MappingHelper;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilder;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
+import org.jetbrains.annotations.ApiStatus;

-import java.util.HashMap;
-import java.util.Map;
+import java.util.Collection;

-public class ChatTypes {
-    private static final Map<String, ChatType> CHAT_TYPE_MAP = new HashMap<>();
-    //Key - mappings version, value - map with chat type ids and chat types
-    private static final Map<Byte, Map<Integer, ChatType>> CHAT_TYPE_ID_MAP = new HashMap<>();
-    private static final TypesBuilder TYPES_BUILDER = new TypesBuilder("chat/chat_type_mappings");
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.incomingDirectMessage;
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.outgoingDirectMessage;
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.teamMessage;
+import static com.github.retrooper.packetevents.protocol.chat.ChatTypeDecoration.withSender;

-    public static ChatType define(String key) {
-        TypesBuilderData data = TYPES_BUILDER.define(key);
-        ChatType chatType = new ChatType() {
-            @Override
-            public ResourceLocation getName() {
-                return data.getName();
-            }
+public final class ChatTypes {

-            @Override
-            public int getId(ClientVersion version) {
-                return MappingHelper.getId(version, TYPES_BUILDER, data);
-            }
-        };
-        MappingHelper.registerMapping(TYPES_BUILDER, CHAT_TYPE_MAP, CHAT_TYPE_ID_MAP, chatType);
-        return chatType;
+    private static final VersionedRegistry<ChatType> REGISTRY = new VersionedRegistry<>("chat_type");
+
+    private ChatTypes() {
+    }
+
+    @ApiStatus.Internal
+    public static ChatType define(String key) {
+        return define(key, withSender("chat.type.text"));
+    }
+
+    @ApiStatus.Internal
+    public static ChatType define(String key, ChatTypeDecoration chatDeco) {
+        return define(key, chatDeco, withSender("chat.type.text.narrate"));
+    }
+
+    @ApiStatus.Internal
+    public static ChatType define(String key, ChatTypeDecoration chatDeco, ChatTypeDecoration narrationDeco) {
+        return REGISTRY.define(key, data ->
+                new StaticChatType(data, chatDeco, narrationDeco));
+    }
+
+    public static VersionedRegistry<ChatType> getRegistry() {
+        return REGISTRY;
    }

-    //with minecraft:key
    public static ChatType getByName(String name) {
-        return CHAT_TYPE_MAP.get(name);
+        return REGISTRY.getByName(name);
    }

    public static ChatType getById(ClientVersion version, int id) {
-        int index = TYPES_BUILDER.getDataIndex(version);
-        return CHAT_TYPE_ID_MAP.get((byte) index).get(id);
+        return REGISTRY.getById(version, id);
    }

    public static final ChatType CHAT = define("chat");
-    public static final ChatType SAY_COMMAND = define("say_command");
-    public static final ChatType MSG_COMMAND_INCOMING = define("msg_command_incoming");
-    public static final ChatType MSG_COMMAND_OUTGOING = define("msg_command_outgoing");
-    public static final ChatType TEAM_MSG_COMMAND_INCOMING = define("team_msg_command_incoming");
-    public static final ChatType TEAM_MSG_COMMAND_OUTGOING = define("team_msg_command_outgoing");
-    public static final ChatType EMOTE_COMMAND = define("emote_command");
+    public static final ChatType SAY_COMMAND = define("say_command",
+            withSender("chat.type.announcement"));
+    public static final ChatType MSG_COMMAND_INCOMING = define("msg_command_incoming",
+            incomingDirectMessage("commands.message.display.incoming"));
+    public static final ChatType MSG_COMMAND_OUTGOING = define("msg_command_outgoing",
+            outgoingDirectMessage("commands.message.display.outgoing"));
+    public static final ChatType TEAM_MSG_COMMAND_INCOMING = define("team_msg_command_incoming",
+            teamMessage("chat.type.team.text"));
+    public static final ChatType TEAM_MSG_COMMAND_OUTGOING = define("team_msg_command_outgoing",
+            teamMessage("chat.type.team.sent"));
+    public static final ChatType EMOTE_COMMAND = define("emote_command",
+            withSender("chat.type.emote"),
+            withSender("chat.type.emote"));
+
+    // added by CraftBukkit for a few versions
    public static final ChatType RAW = define("raw");

    @Deprecated
@@ -78,7 +91,16 @@ public class ChatTypes {
    @Deprecated
    public static final ChatType TEAM_MSG_COMMAND = define("team_msg_command");

+    /**
+     * Returns an immutable view of the chat types.
+     *
+     * @return Chat Types
+     */
+    public static Collection<ChatType> values() {
+        return REGISTRY.getEntries();
+    }
+
    static {
-        TYPES_BUILDER.unloadFileMappings();
+        REGISTRY.unloadMappings();
    }
 }
@@ -1,5 +1,6 @@
 package com.github.retrooper.packetevents.protocol.chat;

+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Nullable;

 import java.io.DataOutput;
@@ -86,12 +87,23 @@ public class LastSeenMessages {
    }

    public static class Update {
+
        private final int offset;
        private final BitSet acknowledged;
+        private final byte checksum;

+        /**
+         * Checksum has been added with 1.21.5
+         */
+        @ApiStatus.Obsolete
        public Update(int offset, BitSet acknowledged) {
+            this(offset, acknowledged, (byte) 0);
+        }
+
+        public Update(int offset, BitSet acknowledged, byte checksum) {
            this.offset = offset;
            this.acknowledged = acknowledged;
+            this.checksum = checksum;
        }

        public int getOffset() {
@@ -101,5 +113,12 @@ public class LastSeenMessages {
        public BitSet getAcknowledged() {
            return acknowledged;
        }
+
+        /**
+         * Added with 1.21.5
+         */
+        public byte getChecksum() {
+            return this.checksum;
+        }
    }
 }
@@ -16,9 +16,10 @@
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

-
 package com.github.retrooper.packetevents.protocol.chat;

+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.protocol.chat.Parsers.Parser;
 import com.github.retrooper.packetevents.resources.ResourceLocation;
 import org.jetbrains.annotations.Nullable;

@@ -26,20 +27,47 @@ import java.util.List;
 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;
    private Optional<String> name;
-    private Optional<Integer> parserID;
+    private Optional<Parser> parser;
    private Optional<List<Object>> properties;
    private Optional<ResourceLocation> suggestionsType;

-    public Node(byte flags, List<Integer> children, int redirectNodeIndex, @Nullable String name, @Nullable Integer parserID, @Nullable List<Object> properties, @Nullable ResourceLocation suggestionsType) {
+    public Node(
+            byte flags, List<Integer> children, int redirectNodeIndex, @Nullable String name,
+            @Nullable Integer parserID, @Nullable List<Object> properties, @Nullable ResourceLocation suggestionsType
+    ) {
+        this(flags, children, redirectNodeIndex, name, parserID == null ? null : Parsers.getById(
+                        PacketEvents.getAPI().getServerManager().getVersion().toClientVersion(), parserID),
+                properties, suggestionsType);
+    }
+
+    public Node(
+            byte flags, List<Integer> children, int redirectNodeIndex, @Nullable String name, @Nullable Parser parser,
+            @Nullable List<Object> properties, @Nullable ResourceLocation suggestionsType
+    ) {
        this.flags = flags;
        this.children = children;
        this.redirectNodeIndex = redirectNodeIndex;
        this.name = Optional.ofNullable(name);
-        this.parserID = Optional.ofNullable(parserID);
+        this.parser = Optional.ofNullable(parser);
        this.properties = Optional.ofNullable(properties);
        this.suggestionsType = Optional.ofNullable(suggestionsType);
    }
@@ -76,12 +104,22 @@ public class Node {
        this.name = name;
    }

+    public Optional<Parser> getParser() {
+        return this.parser;
+    }
+
+    public void setParser(Optional<Parser> parser) {
+        this.parser = parser;
+    }
+
    public Optional<Integer> getParserID() {
-        return parserID;
+        return this.parser.map(parser -> parser.getId(PacketEvents.getAPI()
+                .getServerManager().getVersion().toClientVersion()));
    }

    public void setParserID(Optional<Integer> parserID) {
-        this.parserID = parserID;
+        this.parser = parserID.map(id -> Parsers.getById(PacketEvents.getAPI()
+                .getServerManager().getVersion().toClientVersion(), id));
    }

    public Optional<List<Object>> getProperties() {
@@ -19,58 +19,56 @@
 package com.github.retrooper.packetevents.protocol.chat;

 import com.github.retrooper.packetevents.manager.server.ServerVersion;
-import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import com.github.retrooper.packetevents.protocol.mapper.AbstractMappedEntity;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.resources.ResourceLocation;
-import com.github.retrooper.packetevents.util.mappings.MappingHelper;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilder;
 import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+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;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 import java.util.Optional;
 import java.util.function.BiConsumer;
 import java.util.function.Function;

-public class Parsers {
+@NullMarked
+public final class Parsers {

-    private static final List<Parser> ALL_PARSERS = new ArrayList<>(); // support for old methods
-    private static final Map<String, Parser> PARSER_MAP = new HashMap<>();
-    private static final Map<Byte, Map<Integer, Parser>> PARSER_ID_MAP = new HashMap<>();
-    private static final TypesBuilder TYPES_BUILDER = new TypesBuilder("command/argument_parser_mappings");
+    private static final VersionedRegistry<Parser> REGISTRY = new VersionedRegistry<>("command_argument_type");

+    private Parsers() {
+    }
+
+    @ApiStatus.Internal
    public static Parser define(String key) {
        return define(key, null, null);
    }

+    @ApiStatus.Internal
    public static Parser define(String key, @Nullable Reader reader, @Nullable Writer writer) {
-        TypesBuilderData data = TYPES_BUILDER.define(key);
-        Parser parser = new Parser(data, reader, writer);
-
-        ALL_PARSERS.add(parser);
-        MappingHelper.registerMapping(TYPES_BUILDER, PARSER_MAP, PARSER_ID_MAP, parser);
-        return parser;
+        return REGISTRY.define(key, data -> new Parser(data, reader, writer));
    }

-    // with key
    public static Parser getByName(String name) {
-        return PARSER_MAP.get(name);
+        return REGISTRY.getByName(name);
    }

    public static Parser getById(ClientVersion version, int id) {
-        int index = TYPES_BUILDER.getDataIndex(version);
-        Map<Integer, Parser> idMap = PARSER_ID_MAP.get((byte) index);
-        return idMap.get(id);
+        return REGISTRY.getById(version, id);
    }

    public static List<Parser> getParsers() {
-        return Collections.unmodifiableList(ALL_PARSERS);
+        return new ArrayList<>(REGISTRY.getEntries());
+    }
+
+    public static VersionedRegistry<Parser> getRegistry() {
+        return REGISTRY;
    }

    public static final Parser BRIGADIER_BOOL = define("brigadier:bool", null, null);
@@ -151,6 +149,8 @@ public class Parsers {
    public static final Parser COMPONENT = define("component", null, null);
    public static final Parser STYLE = define("style", null, null);
    public static final Parser MESSAGE = define("message", null, null);
+    public static final Parser NBT_COMPOUND_TAG = define("nbt_compound_tag", null, null);
+    @ApiStatus.Obsolete
    public static final Parser NBT = define("nbt", null, null);
    public static final Parser NBT_TAG = define("nbt_tag", null, null);
    public static final Parser NBT_PATH = define("nbt_path", null, null);
@@ -170,10 +170,13 @@ public class Parsers {
    public static final Parser ITEM_SLOT = define("item_slot", null, null);
    public static final Parser ITEM_SLOTS = define("item_slots", null, null);
    public static final Parser RESOURCE_LOCATION = define("resource_location", null, null);
+    public static final Parser MOB_EFFECT = define("mob_effect", null, null);
    public static final Parser FUNCTION = define("function", null, null);
    public static final Parser ENTITY_ANCHOR = define("entity_anchor", null, null);
    public static final Parser INT_RANGE = define("int_range", null, null);
    public static final Parser FLOAT_RANGE = define("float_range", null, null);
+    public static final Parser ITEM_ENCHANTMENT = define("item_enchantment", null, null);
+    public static final Parser ENTITY_SUMMON = define("entity_summon", null, null);
    public static final Parser DIMENSION = define("dimension", null, null);
    public static final Parser GAMEMODE = define("gamemode", null, null);
    public static final Parser TIME = define("time",
@@ -209,8 +212,25 @@ public class Parsers {
    public static final Parser LOOT_MODIFIER = define("loot_modifier", null, null);
    public static final Parser UUID = define("uuid", null, null);

+    /**
+     * Added with 1.21.5
+     */
+    public static final Parser RESOURCE_SELECTOR = define("resource_selector",
+            wrapper -> Collections.singletonList(wrapper.readIdentifier()),
+            (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 {
-        TYPES_BUILDER.unloadFileMappings();
+        REGISTRY.unloadMappings();
    }

    @FunctionalInterface
@@ -219,9 +239,8 @@ public class Parsers {
    @FunctionalInterface
    public interface Writer extends BiConsumer<PacketWrapper<?>, List<Object>> {}

-    public static final class Parser implements MappedEntity {
+    public static final class Parser extends AbstractMappedEntity {

-        private final TypesBuilderData data;
        private final Reader reader;
        private final Writer writer;

@@ -234,8 +253,9 @@ public class Parsers {
            );
        }

-        private Parser(TypesBuilderData data, @Nullable Reader reader, Writer writer) {
-            this.data = data;
+        @ApiStatus.Internal
+        public Parser(@Nullable TypesBuilderData data, @Nullable Reader reader, @Nullable Writer writer) {
+            super(data);
            this.reader = reader;
            this.writer = writer;
        }
@@ -252,24 +272,5 @@ public class Parsers {
                this.writer.accept(wrapper, properties);
            }
        }
-
-        @Override
-        public ResourceLocation getName() {
-            return this.data.getName();
-        }
-
-        @Override
-        public int getId(ClientVersion version) {
-            int index = TYPES_BUILDER.getDataIndex(version);
-            return this.data.getData()[index];
-        }
-
-        @Override
-        public boolean equals(Object obj) {
-            if (obj instanceof Parser) {
-                return this.getName().equals(((Parser) obj).getName());
-            }
-            return false;
-        }
    }
 }
@@ -2,9 +2,9 @@ package com.github.retrooper.packetevents.protocol.chat;

 public class SignedCommandArgument {
    private String argument;
-    private byte[] signature;
+    private MessageSignature signature;

-    public SignedCommandArgument(String argument, byte[] signature) {
+    public SignedCommandArgument(String argument, MessageSignature signature) {
        this.argument = argument;
        this.signature = signature;
    }
@@ -17,11 +17,11 @@ public class SignedCommandArgument {
        this.argument = argument;
    }

-    public byte[] getSignature() {
+    public MessageSignature getSignature() {
        return signature;
    }

-    public void setSignature(byte[] signature) {
+    public void setSignature(MessageSignature signature) {
        this.signature = signature;
    }
 }
@@ -0,0 +1,123 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2024 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;
+
+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 java.util.Objects;
+
+public class StaticChatType extends AbstractMappedEntity implements ChatType {
+
+    private final @UnknownNullability("only nullable for 1.19") ChatTypeDecoration chatDecoration;
+    private final @Nullable ChatTypeDecoration overlayDecoration;
+    private final @UnknownNullability("only nullable for 1.19") ChatTypeDecoration narrationDecoration;
+    private final @Nullable NarrationPriority narrationPriority;
+
+    public StaticChatType(
+            ChatTypeDecoration chatDecoration,
+            ChatTypeDecoration narrationDecoration
+    ) {
+        this(null, chatDecoration, null, narrationDecoration, null);
+    }
+
+    @ApiStatus.Internal
+    public StaticChatType(
+            @Nullable TypesBuilderData data,
+            ChatTypeDecoration chatDecoration,
+            ChatTypeDecoration narrationDecoration
+    ) {
+        this(data, chatDecoration, null, narrationDecoration, null);
+    }
+
+    public StaticChatType(
+            @UnknownNullability("only nullable for 1.19") ChatTypeDecoration chatDecoration,
+            @Nullable ChatTypeDecoration overlayDecoration,
+            @UnknownNullability("only nullable for 1.19") ChatTypeDecoration narrationDecoration,
+            @Nullable NarrationPriority narrationPriority
+    ) {
+        this(null, chatDecoration, overlayDecoration, narrationDecoration, narrationPriority);
+    }
+
+    @ApiStatus.Internal
+    public StaticChatType(
+            @Nullable TypesBuilderData data,
+            @UnknownNullability("only nullable for 1.19") ChatTypeDecoration chatDecoration,
+            @Nullable ChatTypeDecoration overlayDecoration,
+            @UnknownNullability("only nullable for 1.19") ChatTypeDecoration narrationDecoration,
+            @Nullable NarrationPriority narrationPriority
+    ) {
+        super(data);
+        this.chatDecoration = chatDecoration;
+        this.overlayDecoration = overlayDecoration;
+        this.narrationDecoration = narrationDecoration;
+        this.narrationPriority = narrationPriority;
+    }
+
+    @Override
+    public ChatType copy(@Nullable TypesBuilderData newData) {
+        return new StaticChatType(newData, this.chatDecoration,
+                this.overlayDecoration, this.narrationDecoration, this.narrationPriority);
+    }
+
+    @Override
+    public @UnknownNullability("only nullable for 1.19") ChatTypeDecoration getChatDecoration() {
+        return this.chatDecoration;
+    }
+
+    @Override
+    public @Nullable ChatTypeDecoration getOverlayDecoration() {
+        return this.overlayDecoration;
+    }
+
+    @Override
+    public @UnknownNullability("only nullable for 1.19") ChatTypeDecoration getNarrationDecoration() {
+        return this.narrationDecoration;
+    }
+
+    @Override
+    public @Nullable NarrationPriority getNarrationPriority() {
+        return this.narrationPriority;
+    }
+
+    @Override
+    public boolean deepEquals(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;
+        if (!Objects.equals(this.narrationDecoration, that.narrationDecoration)) return false;
+        return this.narrationPriority == that.narrationPriority;
+    }
+
+    @Override
+    public int deepHashCode() {
+        return Objects.hash(super.hashCode(), this.chatDecoration, this.overlayDecoration, this.narrationDecoration, this.narrationPriority);
+    }
+
+    @Override
+    public String toString() {
+        return "StaticChatType{chatDecoration=" + this.chatDecoration + ", overlayDecoration=" + this.overlayDecoration + ", narrationDecoration=" + this.narrationDecoration + ", narrationPriority=" + this.narrationPriority + '}';
+    }
+}
@@ -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;
    }
@@ -30,7 +30,7 @@ import java.util.UUID;
 public class ChatMessage_v1_19_1 extends ChatMessage_v1_16 {
    private String plainContent;
    private @Nullable Component unsignedChatContent;
-    private ChatTypeBoundNetwork chatType;
+    private ChatType.Bound chatFormatting;
    private byte @Nullable [] previousSignature;
    private byte[] signature;
    private Instant timestamp;
@@ -40,15 +40,15 @@ public class ChatMessage_v1_19_1 extends ChatMessage_v1_16 {

    public ChatMessage_v1_19_1(String plainContent, Component decoratedChatContent,
                               @Nullable Component unsignedChatContent,
-                               UUID senderUUID, ChatTypeBoundNetwork chatType,
+                               UUID senderUUID, ChatType.Bound chatFormatting,
                               byte @Nullable [] previousSignature, byte[] signature,
                               Instant timestamp, long salt,
                               LastSeenMessages lastSeenMessages,
                               FilterMask filterMask) {
-        super(decoratedChatContent, chatType.getType(), senderUUID);
+        super(decoratedChatContent, chatFormatting.getType(), senderUUID);
        this.plainContent = plainContent;
        this.unsignedChatContent = unsignedChatContent;
-        this.chatType = chatType;
+        this.chatFormatting = chatFormatting;
        this.previousSignature = previousSignature;
        this.signature = signature;
        this.timestamp = timestamp;
@@ -79,20 +79,38 @@ public class ChatMessage_v1_19_1 extends ChatMessage_v1_16 {

    @Override
    public ChatType getType() {
-        return chatType.getType();
+        return chatFormatting.getType();
    }

    @Override
    public void setType(ChatType type) {
-        chatType.setType(type);
+        chatFormatting.setType(type);
    }

-    public ChatTypeBoundNetwork getChatType() {
-        return chatType;
+    public ChatType.Bound getChatFormatting() {
+        return chatFormatting;
    }

-    public void setChatType(ChatTypeBoundNetwork type) {
-        this.chatType = type;
+    public void setChatFormatting(ChatType.Bound chatFormatting) {
+        this.chatFormatting = chatFormatting;
+    }
+
+    /**
+     * Retrieves the chat formatting. Please refer to {@link ChatMessage_v1_19_1#getChatFormatting}
+     * @return chat formatting which contains the actual chat type.
+     */
+    @Deprecated
+    public ChatType.Bound getChatType() {
+        return chatFormatting;
+    }
+
+    /**
+     * Sets the chat formatting. Please refer to {@link ChatMessage_v1_19_1#setChatFormatting}
+     * @param chatFormatting formatting which contains the actual chat type.
+     */
+    @Deprecated
+    public void setChatType(ChatType.Bound chatFormatting) {
+        this.chatFormatting = chatFormatting;
    }

    public byte @Nullable [] getPreviousSignature() {
@@ -143,6 +161,10 @@ public class ChatMessage_v1_19_1 extends ChatMessage_v1_16 {
        this.filterMask = filterMask;
    }

+    /**
+     * Please refer to {@link com.github.retrooper.packetevents.protocol.chat.ChatType.Bound}
+     */
+    @Deprecated
    public static class ChatTypeBoundNetwork {
        private ChatType type;
        private Component name;
@@ -1,5 +1,6 @@
 package com.github.retrooper.packetevents.protocol.chat.message;

+import com.github.retrooper.packetevents.protocol.chat.ChatType;
 import com.github.retrooper.packetevents.protocol.chat.LastSeenMessages;
 import com.github.retrooper.packetevents.protocol.chat.filter.FilterMask;
 import com.github.retrooper.packetevents.util.adventure.AdventureSerializer;
@@ -9,7 +10,6 @@ import org.jetbrains.annotations.Nullable;
 import java.time.Instant;
 import java.util.Optional;
 import java.util.UUID;
-//We'll extend ChatMessage_v1_16 for now, hopefully no breaking changes in the future
 public class ChatMessage_v1_19_3 extends ChatMessage_v1_16 {
    int index;
    byte[] signature;
@@ -19,10 +19,10 @@ public class ChatMessage_v1_19_3 extends ChatMessage_v1_16 {
    LastSeenMessages.Packed lastSeenMessagesPacked;
    @Nullable Component unsignedChatContent;
    FilterMask filterMask;
-    ChatMessage_v1_19_1.ChatTypeBoundNetwork chatType;
+    ChatType.Bound chatFormatting;

-    public ChatMessage_v1_19_3(UUID senderUUID, int index, byte[] signature, String plainContent, Instant timestamp, long salt, LastSeenMessages.Packed lastSeenMessagesPacked, @Nullable Component unsignedChatContent, FilterMask filterMask, ChatMessage_v1_19_1.ChatTypeBoundNetwork chatType) {
-        super(Component.text(plainContent), chatType.getType(), senderUUID);
+    public ChatMessage_v1_19_3(UUID senderUUID, int index, byte[] signature, String plainContent, Instant timestamp, long salt, LastSeenMessages.Packed lastSeenMessagesPacked, @Nullable Component unsignedChatContent, FilterMask filterMask, ChatType.Bound chatFormatting) {
+        super(Component.text(plainContent), chatFormatting.getType(), senderUUID);
        this.index = index;
        this.signature = signature;
        this.plainContent = plainContent;
@@ -31,7 +31,7 @@ public class ChatMessage_v1_19_3 extends ChatMessage_v1_16 {
        this.lastSeenMessagesPacked = lastSeenMessagesPacked;
        this.unsignedChatContent = unsignedChatContent;
        this.filterMask = filterMask;
-        this.chatType = chatType;
+        this.chatFormatting = chatFormatting;
    }

    public int getIndex() {
@@ -109,11 +109,30 @@ public class ChatMessage_v1_19_3 extends ChatMessage_v1_16 {
        this.filterMask = filterMask;
    }

-    public ChatMessage_v1_19_1.ChatTypeBoundNetwork getChatType() {
-        return chatType;
+
+    public ChatType.Bound getChatFormatting() {
+        return chatFormatting;
    }

-    public void setChatType(ChatMessage_v1_19_1.ChatTypeBoundNetwork chatType) {
-        this.chatType = chatType;
+    public void setChatFormatting(ChatType.Bound chatFormatting) {
+        this.chatFormatting = chatFormatting;
+    }
+
+    /**
+     * Retrieves the chat formatting. Please refer to {@link ChatMessage_v1_19_3#getChatFormatting}
+     * @return chat formatting which contains the actual chat type.
+     */
+    @Deprecated
+    public ChatType.Bound getChatType() {
+        return chatFormatting;
+    }
+
+    /**
+     * Sets the chat formatting. Please refer to {@link ChatMessage_v1_19_3#setChatFormatting}
+     * @param chatFormatting formatting which contains the actual chat type.
+     */
+    @Deprecated
+    public void setChatType(ChatType.Bound chatFormatting) {
+        this.chatFormatting = chatFormatting;
    }
 }
@@ -0,0 +1,49 @@
+/*
+ * 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.message;
+
+import com.github.retrooper.packetevents.protocol.chat.ChatType;
+import com.github.retrooper.packetevents.protocol.chat.LastSeenMessages;
+import com.github.retrooper.packetevents.protocol.chat.filter.FilterMask;
+import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.Nullable;
+
+import java.time.Instant;
+import java.util.UUID;
+
+//We'll extend ChatMessage_v1_19_3 for now, hopefully no breaking changes in the future
+public class ChatMessage_v1_21_5 extends ChatMessage_v1_19_3 {
+
+    int globalIndex;
+
+    public ChatMessage_v1_21_5(int globalIndex, UUID senderUUID, int index, byte[] signature, String plainContent,
+                               Instant timestamp, long salt, LastSeenMessages.Packed lastSeenMessagesPacked, @Nullable Component unsignedChatContent,
+                               FilterMask filterMask, ChatType.Bound chatFormatting) {
+        super(senderUUID, index, signature, plainContent, timestamp, salt, lastSeenMessagesPacked, unsignedChatContent, filterMask, chatFormatting);
+        this.globalIndex = globalIndex;
+    }
+
+    public int getGlobalIndex() {
+        return this.globalIndex;
+    }
+
+    public void setGlobalIndex(int globalIndex) {
+        this.globalIndex = globalIndex;
+    }
+}
@@ -31,14 +31,13 @@ public class ChatMessageProcessorLegacy implements ChatMessageProcessor {
    @Override
    public ChatMessage readChatMessage(@NotNull PacketWrapper<?> wrapper) {
        Component chatContent = wrapper.readComponent();
-        int id = wrapper.readByte();
-        ChatType type = ChatTypes.getById(wrapper.getServerVersion().toClientVersion(), id);
+        ChatType type = wrapper.readMappedEntity(ChatTypes.getRegistry());
        return new ChatMessageLegacy(chatContent, type);
    }

    @Override
    public void writeChatMessage(@NotNull PacketWrapper<?> wrapper, @NotNull ChatMessage data) {
        wrapper.writeComponent(data.getChatContent());
-        wrapper.writeByte(data.getType().getId(wrapper.getServerVersion().toClientVersion()));
+        wrapper.writeMappedEntity(data.getType());
    }
 }
@@ -33,8 +33,7 @@ public class ChatMessageProcessor_v1_16 implements ChatMessageProcessor {
    @Override
    public ChatMessage readChatMessage(@NotNull PacketWrapper<?> wrapper) {
        Component chatContent = wrapper.readComponent();
-        int id = wrapper.readByte();
-        ChatType type = ChatTypes.getById(wrapper.getServerVersion().toClientVersion(), id);
+        ChatType type = wrapper.readMappedEntity(ChatTypes.getRegistry());
        UUID senderUUID = wrapper.readUUID();
        return new ChatMessage_v1_16(chatContent, type, senderUUID);
    }
@@ -42,7 +41,7 @@ public class ChatMessageProcessor_v1_16 implements ChatMessageProcessor {
    @Override
    public void writeChatMessage(@NotNull PacketWrapper<?> wrapper, @NotNull ChatMessage data) {
        wrapper.writeComponent(data.getChatContent());
-        wrapper.writeByte(data.getType().getId(wrapper.getServerVersion().toClientVersion()));
+        wrapper.writeMappedEntity(data.getType());
        wrapper.writeUUID(((ChatMessage_v1_16) data).getSenderUUID());
    }
 }
@@ -36,8 +36,7 @@ public class ChatMessageProcessor_v1_19 implements ChatMessageProcessor {
    public ChatMessage readChatMessage(@NotNull PacketWrapper<?> wrapper) {
        Component chatContent = wrapper.readComponent();
        Component unsignedChatContent = wrapper.readOptional(PacketWrapper::readComponent);
-        int id = wrapper.readVarInt();
-        ChatType type = ChatTypes.getById(wrapper.getServerVersion().toClientVersion(), id);
+        ChatType type = wrapper.readMappedEntity(ChatTypes.getRegistry());
        UUID senderUUID = wrapper.readUUID();
        Component senderDisplayName = wrapper.readComponent();
        @Nullable Component teamName = wrapper.readOptional(PacketWrapper::readComponent);
@@ -53,7 +52,7 @@ public class ChatMessageProcessor_v1_19 implements ChatMessageProcessor {
        ChatMessage_v1_19 newData = (ChatMessage_v1_19) data;
        wrapper.writeComponent(newData.getChatContent());
        wrapper.writeOptional(newData.getUnsignedChatContent(), PacketWrapper::writeComponent);
-        wrapper.writeVarInt(newData.getType().getId(wrapper.getServerVersion().toClientVersion()));
+        wrapper.writeMappedEntity(newData.getType());
        wrapper.writeUUID(newData.getSenderUUID());
        wrapper.writeComponent(newData.getSenderDisplayName());
        wrapper.writeOptional(newData.getTeamName(), PacketWrapper::writeComponent);
@@ -50,8 +50,8 @@ public class ChatMessageProcessor_v1_19_1 implements ChatMessageProcessor {
        LastSeenMessages lastSeenMessages = wrapper.readLastSeenMessages();
        Component unsignedChatContent = wrapper.readOptional(PacketWrapper::readComponent);
        FilterMask filterMask = wrapper.readFilterMask();
-        ChatMessage_v1_19_1.ChatTypeBoundNetwork chatType = wrapper.readChatTypeBoundNetwork();
-        return new ChatMessage_v1_19_1(plainContent, chatContent, unsignedChatContent, senderUUID, chatType,
+        ChatType.Bound chatFormatting = wrapper.readChatTypeBoundNetwork();
+        return new ChatMessage_v1_19_1(plainContent, chatContent, unsignedChatContent, senderUUID, chatFormatting,
                previousSignature, signature, timestamp, salt, lastSeenMessages, filterMask);
    }

@@ -68,6 +68,6 @@ public class ChatMessageProcessor_v1_19_1 implements ChatMessageProcessor {
        wrapper.writeLastSeenMessages(newData.getLastSeenMessages());
        wrapper.writeOptional(newData.getUnsignedChatContent(), PacketWrapper::writeComponent);
        wrapper.writeFilterMask(newData.getFilterMask());
-        wrapper.writeChatTypeBoundNetwork(newData.getChatType());
+        wrapper.writeChatTypeBoundNetwork(newData.getChatFormatting());
    }
 }
@@ -1,5 +1,6 @@
 package com.github.retrooper.packetevents.protocol.chat.message.reader.impl;

+import com.github.retrooper.packetevents.protocol.chat.ChatType;
 import com.github.retrooper.packetevents.protocol.chat.LastSeenMessages;
 import com.github.retrooper.packetevents.protocol.chat.filter.FilterMask;
 import com.github.retrooper.packetevents.protocol.chat.message.ChatMessage;
@@ -25,7 +26,7 @@ public class ChatMessageProcessor_v1_19_3 implements ChatMessageProcessor {
        LastSeenMessages.Packed lastSeenMessagesPacked = wrapper.readLastSeenMessagesPacked();
        Component unsignedChatContent = wrapper.readOptional(PacketWrapper::readComponent);
        FilterMask filterMask = wrapper.readFilterMask();
-        ChatMessage_v1_19_1.ChatTypeBoundNetwork chatType = wrapper.readChatTypeBoundNetwork();
+        ChatType.Bound chatType = wrapper.readChatTypeBoundNetwork();

        return new ChatMessage_v1_19_3(senderUUID, index, signature, plainContent, timestamp, salt, lastSeenMessagesPacked, unsignedChatContent, filterMask, chatType);
    }
@@ -42,6 +43,6 @@ public class ChatMessageProcessor_v1_19_3 implements ChatMessageProcessor {
        wrapper.writeLastSeenMessagesPacked(newData.getLastSeenMessagesPacked());
        wrapper.writeOptional(newData.getUnsignedChatContent().orElse(null), PacketWrapper::writeComponent);
        wrapper.writeFilterMask(newData.getFilterMask());
-        wrapper.writeChatTypeBoundNetwork(newData.getChatType());
+        wrapper.writeChatTypeBoundNetwork(newData.getChatFormatting());
    }
 }
@@ -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.message.reader.impl;
+
+import com.github.retrooper.packetevents.protocol.chat.ChatType;
+import com.github.retrooper.packetevents.protocol.chat.LastSeenMessages;
+import com.github.retrooper.packetevents.protocol.chat.filter.FilterMask;
+import com.github.retrooper.packetevents.protocol.chat.message.ChatMessage;
+import com.github.retrooper.packetevents.protocol.chat.message.ChatMessage_v1_21_5;
+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;
+
+import java.time.Instant;
+import java.util.UUID;
+
+public class ChatMessageProcessor_v1_21_5 implements ChatMessageProcessor {
+
+    @Override
+    public ChatMessage readChatMessage(@NotNull PacketWrapper<?> wrapper) {
+        int globalIndex = wrapper.readVarInt();
+        UUID senderUUID = wrapper.readUUID();
+        int index = wrapper.readVarInt();
+        byte[] signature = wrapper.readOptional((w) -> w.readBytes(256));
+        String plainContent = wrapper.readString(256);
+        Instant timestamp = wrapper.readTimestamp();
+        long salt = wrapper.readLong();
+        LastSeenMessages.Packed lastSeenMessagesPacked = wrapper.readLastSeenMessagesPacked();
+        Component unsignedChatContent = wrapper.readOptional(PacketWrapper::readComponent);
+        FilterMask filterMask = wrapper.readFilterMask();
+        ChatType.Bound chatType = wrapper.readChatTypeBoundNetwork();
+
+        return new ChatMessage_v1_21_5(globalIndex, senderUUID, index, signature, plainContent, timestamp, salt, lastSeenMessagesPacked, unsignedChatContent, filterMask, chatType);
+    }
+
+    @Override
+    public void writeChatMessage(@NotNull PacketWrapper<?> wrapper, @NotNull ChatMessage data) {
+        ChatMessage_v1_21_5 newData = (ChatMessage_v1_21_5) data;
+        wrapper.writeVarInt(newData.getGlobalIndex());
+        wrapper.writeUUID(newData.getSenderUUID());
+        wrapper.writeVarInt(newData.getIndex());
+        wrapper.writeOptional(newData.getSignature(), PacketWrapper::writeBytes);
+        wrapper.writeString(newData.getPlainContent());
+        wrapper.writeTimestamp(newData.getTimestamp());
+        wrapper.writeLong(newData.getSalt());
+        wrapper.writeLastSeenMessagesPacked(newData.getLastSeenMessagesPacked());
+        wrapper.writeOptional(newData.getUnsignedChatContent().orElse(null), PacketWrapper::writeComponent);
+        wrapper.writeFilterMask(newData.getFilterMask());
+        wrapper.writeChatTypeBoundNetwork(newData.getChatFormatting());
+    }
+}
@@ -0,0 +1,146 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2024 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.color;
+
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.nbt.NBTFloat;
+import com.github.retrooper.packetevents.protocol.nbt.NBTInt;
+import com.github.retrooper.packetevents.protocol.nbt.NBTList;
+import com.github.retrooper.packetevents.protocol.nbt.NBTNumber;
+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;
+
+public final class AlphaColor extends Color {
+
+    public static final AlphaColor WHITE = new AlphaColor(0xFFFFFFFF);
+
+    private final int alpha;
+
+    public AlphaColor(
+            @Range(from = 0L, to = 255L) int red,
+            @Range(from = 0L, to = 255L) int green,
+            @Range(from = 0L, to = 255L) int blue
+    ) {
+        this(255, red, green, blue);
+    }
+
+    public AlphaColor(
+            @Range(from = 0L, to = 255L) int alpha,
+            @Range(from = 0L, to = 255L) int red,
+            @Range(from = 0L, to = 255L) int green,
+            @Range(from = 0L, to = 255L) int blue
+    ) {
+        super(red, green, blue);
+        this.alpha = alpha;
+    }
+
+    public AlphaColor(
+            @Range(from = 0L, to = 1L) float red,
+            @Range(from = 0L, to = 1L) float green,
+            @Range(from = 0L, to = 1L) float blue
+    ) {
+        this(1f, red, green, blue);
+    }
+
+    public AlphaColor(
+            @Range(from = 0L, to = 1L) float alpha,
+            @Range(from = 0L, to = 1L) float red,
+            @Range(from = 0L, to = 1L) float green,
+            @Range(from = 0L, to = 1L) float blue
+    ) {
+        super(red, green, blue);
+        this.alpha = MathUtil.floor(alpha * 255f);
+    }
+
+    public AlphaColor(int rgb) {
+        this((rgb >> 24) & BIT_MASK,
+                (rgb >> 16) & BIT_MASK,
+                (rgb >> 8) & BIT_MASK,
+                rgb & BIT_MASK);
+    }
+
+    public static AlphaColor decode(NBT nbt, ClientVersion version) {
+        if (nbt instanceof NBTNumber) {
+            return new AlphaColor(((NBTNumber) nbt).getAsInt());
+        }
+        NBTList<?> list = (NBTList<?>) nbt;
+        float red = ((NBTNumber) list.getTag(0)).getAsFloat();
+        float green = ((NBTNumber) list.getTag(1)).getAsFloat();
+        float blue = ((NBTNumber) list.getTag(2)).getAsFloat();
+        float alpha = ((NBTNumber) list.getTag(3)).getAsFloat();
+        return new AlphaColor(alpha, red, green, blue);
+    }
+
+    public static NBT encode(AlphaColor color, ClientVersion version) {
+        if (version.isNewerThanOrEquals(ClientVersion.V_1_21_2)) {
+            return new NBTInt(color.asRGB());
+        }
+        NBTList<NBTFloat> list = new NBTList<>(NBTType.FLOAT, 4);
+        list.addTag(new NBTFloat(color.red));
+        list.addTag(new NBTFloat(color.green));
+        list.addTag(new NBTFloat(color.blue));
+        list.addTag(new NBTFloat(color.alpha));
+        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 withRed(@Range(from = 0L, to = 255L) int red) {
+        return new AlphaColor(this.alpha, red, this.green, this.blue);
+    }
+
+    @Override
+    public AlphaColor withGreen(@Range(from = 0L, to = 255L) int green) {
+        return new AlphaColor(this.alpha, this.red, green, this.blue);
+    }
+
+    @Override
+    public AlphaColor withBlue(@Range(from = 0L, to = 255L) int blue) {
+        return new AlphaColor(this.alpha, this.red, this.green, blue);
+    }
+
+    @Override
+    public int asRGB() {
+        return (this.alpha << 24) | (this.red << 16) | (this.green << 8) | this.blue;
+    }
+
+    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;
+    }
+}
@@ -18,15 +18,24 @@

 package com.github.retrooper.packetevents.protocol.color;

+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.nbt.NBTFloat;
+import com.github.retrooper.packetevents.protocol.nbt.NBTInt;
+import com.github.retrooper.packetevents.protocol.nbt.NBTList;
+import com.github.retrooper.packetevents.protocol.nbt.NBTNumber;
+import com.github.retrooper.packetevents.protocol.nbt.NBTType;
+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;

-public final class Color implements RGBLike {
+public class Color implements RGBLike {

-    private static final int BIT_MASK = 0xFF;
+    protected static final int BIT_MASK = 0xFF;

-    private final int red, green, blue;
+    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;
@@ -34,10 +43,60 @@ public final class Color implements RGBLike {
        this.blue = blue;
    }

+    public Color(
+            @Range(from = 0L, to = 1L) float red,
+            @Range(from = 0L, to = 1L) float green,
+            @Range(from = 0L, to = 1L) float blue
+    ) {
+        this(MathUtil.floor(red * 255f),
+                MathUtil.floor(green * 255f),
+                MathUtil.floor(blue * 255f));
+    }
+
    public Color(int rgb) {
        this((rgb >> 16) & BIT_MASK, (rgb >> 8) & BIT_MASK, rgb & BIT_MASK);
    }

+    public static Color read(PacketWrapper<?> wrapper) {
+        return new Color(wrapper.readInt());
+    }
+
+    public static void write(PacketWrapper<?> wrapper, Color color) {
+        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, ClientVersion version) {
+        if (nbt instanceof NBTNumber) {
+            return new Color(((NBTNumber) nbt).getAsInt());
+        }
+        NBTList<?> list = (NBTList<?>) nbt;
+        float red = ((NBTNumber) list.getTag(0)).getAsFloat();
+        float green = ((NBTNumber) list.getTag(1)).getAsFloat();
+        float blue = ((NBTNumber) list.getTag(2)).getAsFloat();
+        return new Color(red, green, blue);
+    }
+
+    public static NBT encode(Color color, ClientVersion version) {
+        if (version.isNewerThanOrEquals(ClientVersion.V_1_21_2)) {
+            return new NBTInt(color.asRGB());
+        }
+        NBTList<NBTFloat> list = new NBTList<>(NBTType.FLOAT, 3);
+        list.addTag(new NBTFloat(color.red));
+        list.addTag(new NBTFloat(color.green));
+        list.addTag(new NBTFloat(color.blue));
+        return list;
+    }
+
    public @NotNull Color withRed(@Range(from = 0L, to = 255L) int red) {
        return new Color(red, green, blue);
    }
@@ -51,9 +110,7 @@ public final class Color implements RGBLike {
    }

    public int asRGB() {
-        int rgb = red;
-        rgb = (rgb << 8) + green;
-        return (rgb << 8) + blue;
+        return (this.red << 16) | (this.green << 8) | this.blue;
    }

    @Override
@@ -70,4 +127,4 @@ public final class Color implements RGBLike {
    public @Range(from = 0L, to = 255L) int blue() {
        return blue;
    }
-}
+}
@@ -18,6 +18,7 @@

 package com.github.retrooper.packetevents.protocol.color;

+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import net.kyori.adventure.util.RGBLike;
 import org.jetbrains.annotations.NotNull;

@@ -54,6 +55,8 @@ public enum DyeColor implements RGBLike {

    BLACK(new Color(0x1d1d21), new Color(0x0), new Color(0x1e1b1b), 29);

+    private static final DyeColor[] COLORS = values();
+
    private final Color textureDiffuseColor;

    private final Color textColor;
@@ -70,6 +73,14 @@ public enum DyeColor implements RGBLike {
        this.mapColorId = mapColorId;
    }

+    public static DyeColor read(PacketWrapper<?> wrapper) {
+        return wrapper.readEnum(COLORS);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, DyeColor color) {
+        wrapper.writeEnum(color);
+    }
+
    public @NotNull Color color() {
        return this.textureDiffuseColor;
    }
@@ -100,4 +111,4 @@ public enum DyeColor implements RGBLike {
    public int mapColorId() {
        return this.mapColorId;
    }
-}
+}
@@ -23,6 +23,7 @@ import com.github.retrooper.packetevents.wrapper.PacketWrapper;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.function.Predicate;

@@ -30,6 +31,10 @@ public class ComponentPredicate implements Predicate<IComponentMap> {

    private List<ComponentValue<?>> requiredComponents;

+    public ComponentPredicate() {
+        this(new ArrayList<>());
+    }
+
    public ComponentPredicate(List<ComponentValue<?>> requiredComponents) {
        this.requiredComponents = requiredComponents;
    }
@@ -88,4 +93,22 @@ public class ComponentPredicate implements Predicate<IComponentMap> {
    public void setRequiredComponents(List<ComponentValue<?>> requiredComponents) {
        this.requiredComponents = requiredComponents;
    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (!(obj instanceof ComponentPredicate)) return false;
+        ComponentPredicate that = (ComponentPredicate) obj;
+        return this.requiredComponents.equals(that.requiredComponents);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.requiredComponents);
+    }
+
+    @Override
+    public String toString() {
+        return "ComponentPredicate{requiredComponents=" + this.requiredComponents + '}';
+    }
 }
@@ -19,11 +19,33 @@
 package com.github.retrooper.packetevents.protocol.component;

 import com.github.retrooper.packetevents.protocol.mapper.MappedEntity;
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import org.jetbrains.annotations.ApiStatus;
+
+import java.util.function.Function;

 public interface ComponentType<T> extends MappedEntity {

    T read(PacketWrapper<?> wrapper);

    void write(PacketWrapper<?> wrapper, T content);
+
+    T decode(NBT nbt, ClientVersion version);
+
+    NBT encode(T value, ClientVersion version);
+
+    @ApiStatus.Internal
+    <Z> ComponentType<Z> legacyMap(Function<T, Z> mapper, Function<Z, T> unmapper);
+
+    interface Decoder<T> {
+
+        T decode(NBT nbt, ClientVersion version);
+    }
+
+    interface Encoder<T> {
+
+        NBT encode(T value, ClientVersion version);
+    }
 }
@@ -19,10 +19,35 @@
 package com.github.retrooper.packetevents.protocol.component;

 import com.github.retrooper.packetevents.protocol.color.DyeColor;
+import com.github.retrooper.packetevents.protocol.component.builtin.AxolotlVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.CatCollarComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.CatVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.ChickenVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.CowVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.FoxVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.FrogVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.HorseVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.LlamaVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.MooshroomVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.PaintingVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.ParrotVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.PigVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.RabbitVariantComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.SalmonSizeComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.SheepColorComponent;
+import com.github.retrooper.packetevents.protocol.component.builtin.ShulkerColorComponent;
+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.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.item.ArmorTrim;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.BannerLayers;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.BundleContents;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ChargedProjectiles;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.CustomData;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.DebugStickState;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.FireworkExplosion;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.FoodProperties;
@@ -30,117 +55,114 @@ import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemAdv
 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;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemBlocksAttacks;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemBreakSound;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemConsumable;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemContainerContents;
 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.ItemDeathProtection;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemDyeColor;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemEnchantable;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemEnchantments;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemEquippable;
 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.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.ItemModel;
 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;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemProvidesBannerPatterns;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemProvidesTrimMaterial;
 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.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.ItemUseRemainder;
+import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemWeapon;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.LodestoneTracker;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.PotDecorations;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.SuspiciousStewEffects;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.WritableBookContent;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.WrittenBookContent;
 import com.github.retrooper.packetevents.protocol.item.instrument.Instrument;
+import com.github.retrooper.packetevents.protocol.mapper.MaybeMappedEntity;
 import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.resources.ResourceLocation;
 import com.github.retrooper.packetevents.util.Dummy;
-import com.github.retrooper.packetevents.util.mappings.MappingHelper;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilder;
-import com.github.retrooper.packetevents.util.mappings.TypesBuilderData;
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
 import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper.Reader;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper.Writer;
 import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Nullable;

-import java.util.HashMap;
-import java.util.Map;
-import java.util.function.BiConsumer;
-import java.util.function.Function;
+import java.util.Collection;

-public class ComponentTypes {
+/**
+ * Contains all item data component types.
+ *
+ * @see EnchantEffectComponentTypes
+ */
+public final class ComponentTypes {

-    private static final Map<String, ComponentType<?>> COMPONENT_TYPE_MAP = new HashMap<>();
-    private static final Map<Byte, Map<Integer, ComponentType<?>>> COMPONENT_TYPE_ID_MAP = new HashMap<>();
-    private static final TypesBuilder TYPES_BUILDER = new TypesBuilder("item/item_component_mappings");
+    private static final VersionedRegistry<ComponentType<?>> REGISTRY = new VersionedRegistry<>("data_component_type");

+    private ComponentTypes() {
+    }
+
+    @ApiStatus.Internal
    public static <T> ComponentType<T> define(String key) {
        return define(key, null, null);
    }

+    @ApiStatus.Internal
    public static <T> ComponentType<T> define(String key, @Nullable Reader<T> reader, @Nullable Writer<T> writer) {
-        TypesBuilderData data = TYPES_BUILDER.define(key);
-        ComponentType<T> type = new ComponentType<T>() {
-            @Override
-            public T read(PacketWrapper<?> wrapper) {
-                return reader == null ? null : reader.apply(wrapper);
-            }
-
-            @Override
-            public void write(PacketWrapper<?> wrapper, T content) {
-                if (writer != null) {
-                    writer.accept(wrapper, content);
-                }
-            }
-
-            @Override
-            public ResourceLocation getName() {
-                return data.getName();
-            }
-
-            @Override
-            public int getId(ClientVersion version) {
-                return MappingHelper.getId(version, TYPES_BUILDER, data);
-            }
-
-            @Override
-            public boolean equals(Object obj) {
-                if (obj instanceof ComponentType<?>) {
-                    return this.getName().equals(((ComponentType<?>) obj).getName());
-                }
-                return false;
-            }
-
-            @Override
-            public String toString() {
-                return "Component[" + this.getName() + "]";
-            }
-        };
-
-        MappingHelper.registerMapping(TYPES_BUILDER, COMPONENT_TYPE_MAP, COMPONENT_TYPE_ID_MAP, type);
-        return type;
+        return REGISTRY.define(key, data -> new StaticComponentType<>(data, reader, writer));
+    }
+
+    public static VersionedRegistry<ComponentType<?>> getRegistry() {
+        return REGISTRY;
    }

-    // with key
    public static ComponentType<?> getByName(String name) {
-        return COMPONENT_TYPE_MAP.get(name);
+        return REGISTRY.getByName(name);
    }

    public static ComponentType<?> getById(ClientVersion version, int id) {
-        int index = TYPES_BUILDER.getDataIndex(version);
-        Map<Integer, ComponentType<?>> idMap = COMPONENT_TYPE_ID_MAP.get((byte) index);
-        return idMap.get(id);
+        return REGISTRY.getById(version, id);
    }

-    // item component types
    public static final ComponentType<NBTCompound> CUSTOM_DATA = define("custom_data",
-            PacketWrapper::readNBT, PacketWrapper::writeNBT);
+            // mojang wraps their "persistent" codec as a stream codec just here,
+            // so packetevents has to handle nbt strings
+            CustomData::read, CustomData::write);
    public static final ComponentType<Integer> MAX_STACK_SIZE = define("max_stack_size",
            PacketWrapper::readVarInt, PacketWrapper::writeVarInt);
    public static final ComponentType<Integer> MAX_DAMAGE = define("max_damage",
            PacketWrapper::readVarInt, PacketWrapper::writeVarInt);
    public static final ComponentType<Integer> DAMAGE = define("damage",
            PacketWrapper::readVarInt, PacketWrapper::writeVarInt);
-    public static final ComponentType<Boolean> UNBREAKABLE = define("unbreakable",
-            PacketWrapper::readBoolean, PacketWrapper::writeBoolean);
+    public static final ComponentType<ItemUnbreakable> UNBREAKABLE_MODERN = define("unbreakable",
+            ItemUnbreakable::read, ItemUnbreakable::write);
+    /**
+     * Changed in 1.21.5
+     */
+    @Deprecated
+    public static final ComponentType<Boolean> UNBREAKABLE = UNBREAKABLE_MODERN.legacyMap(
+            ItemUnbreakable::isShowInTooltip, ItemUnbreakable::new);
    public static final ComponentType<Component> CUSTOM_NAME = define("custom_name",
            PacketWrapper::readComponent, PacketWrapper::writeComponent);
    public static final ComponentType<Component> ITEM_NAME = define("item_name",
@@ -157,10 +179,24 @@ public class ComponentTypes {
            ItemAdventurePredicate::read, ItemAdventurePredicate::write);
    public static final ComponentType<ItemAttributeModifiers> ATTRIBUTE_MODIFIERS = define("attribute_modifiers",
            ItemAttributeModifiers::read, ItemAttributeModifiers::write);
-    public static final ComponentType<Integer> CUSTOM_MODEL_DATA = define("custom_model_data",
-            PacketWrapper::readVarInt, PacketWrapper::writeVarInt);
+    public static final ComponentType<ItemCustomModelData> CUSTOM_MODEL_DATA_LISTS = define("custom_model_data",
+            ItemCustomModelData::read, ItemCustomModelData::write);
+    /**
+     * Rewritten in 1.21.4
+     */
+    @Deprecated
+    public static final ComponentType<Integer> CUSTOM_MODEL_DATA = CUSTOM_MODEL_DATA_LISTS.legacyMap(
+            ItemCustomModelData::getLegacyId, ItemCustomModelData::new);
+    /**
+     * Removed with 1.21.5
+     */
+    @ApiStatus.Obsolete
    public static final ComponentType<Dummy> HIDE_ADDITIONAL_TOOLTIP = define("hide_additional_tooltip",
            Dummy::dummyRead, Dummy::dummyWrite);
+    /**
+     * Removed with 1.21.5
+     */
+    @ApiStatus.Obsolete
    public static final ComponentType<Dummy> HIDE_TOOLTIP = define("hide_tooltip",
            Dummy::dummyRead, Dummy::dummyWrite);
    public static final ComponentType<Integer> REPAIR_COST = define("repair_cost",
@@ -173,6 +209,10 @@ public class ComponentTypes {
            Dummy::dummyReadNbt, Dummy::dummyWriteNbt);
    public static final ComponentType<FoodProperties> FOOD = define("food",
            FoodProperties::read, FoodProperties::write);
+    /**
+     * Has been migrated to #DAMAGE_RESISTANT with 1.21.2.
+     */
+    @ApiStatus.Obsolete
    public static final ComponentType<Dummy> FIRE_RESISTANT = define("fire_resistant",
            Dummy::dummyRead, Dummy::dummyWrite);
    public static final ComponentType<ItemTool> TOOL = define("tool",
@@ -211,8 +251,12 @@ public class ComponentTypes {
            PacketWrapper::readNBT, PacketWrapper::writeNBT);
    public static final ComponentType<NBTCompound> BLOCK_ENTITY_DATA = define("block_entity_data",
            PacketWrapper::readNBT, PacketWrapper::writeNBT);
-    public static final ComponentType<Instrument> INSTRUMENT = define("instrument",
-            Instrument::read, Instrument::write);
+    public static final ComponentType<ItemInstrument> ITEM_INSTRUMENT = define("instrument",
+            ItemInstrument::read, ItemInstrument::write);
+    @Deprecated
+    public static final ComponentType<Instrument> INSTRUMENT = ITEM_INSTRUMENT.legacyMap(
+            inst -> inst.getInstrument().getValue(),
+            inst -> new ItemInstrument(new MaybeMappedEntity<>(inst)));
    public static final ComponentType<Integer> OMINOUS_BOTTLE_AMPLIFIER = define("ominous_bottle_amplifier",
            PacketWrapper::readVarInt, PacketWrapper::writeVarInt);
    public static final ComponentType<ItemRecipes> RECIPES = define("recipes",
@@ -244,13 +288,200 @@ public class ComponentTypes {
    public static final ComponentType<ItemContainerLoot> CONTAINER_LOOT = define("container_loot",
            ItemContainerLoot::read, ItemContainerLoot::write);

-    static {
-        TYPES_BUILDER.unloadFileMappings();
+    // added in 1.21
+    public static final ComponentType<ItemJukeboxPlayable> JUKEBOX_PLAYABLE = define("jukebox_playable",
+            ItemJukeboxPlayable::read, ItemJukeboxPlayable::write);
+
+    // added in 1.21.2
+    public static final ComponentType<ItemConsumable> CONSUMABLE = define("consumable",
+            ItemConsumable::read, ItemConsumable::write);
+    public static final ComponentType<ItemUseRemainder> USE_REMAINDER = define("use_remainder",
+            ItemUseRemainder::read, ItemUseRemainder::write);
+    public static final ComponentType<ItemUseCooldown> USE_COOLDOWN = define("use_cooldown",
+            ItemUseCooldown::read, ItemUseCooldown::write);
+    public static final ComponentType<ItemEnchantable> ENCHANTABLE = define("enchantable",
+            ItemEnchantable::read, ItemEnchantable::write);
+    public static final ComponentType<ItemRepairable> REPAIRABLE = define("repairable",
+            ItemRepairable::read, ItemRepairable::write);
+    public static final ComponentType<ItemModel> ITEM_MODEL = define("item_model",
+            ItemModel::read, ItemModel::write);
+    public static final ComponentType<ItemDamageResistant> DAMAGE_RESISTANT = define("damage_resistant",
+            ItemDamageResistant::read, ItemDamageResistant::write);
+    public static final ComponentType<ItemEquippable> EQUIPPABLE = define("equippable",
+            ItemEquippable::read, ItemEquippable::write);
+    public static final ComponentType<Dummy> GLIDER = define("glider",
+            Dummy::dummyRead, Dummy::dummyWrite);
+    public static final ComponentType<ItemDeathProtection> DEATH_PROTECTION = define("death_protection",
+            ItemDeathProtection::read, ItemDeathProtection::write);
+    public static final ComponentType<ItemTooltipStyle> TOOLTIP_STYLE = define("tooltip_style",
+            ItemTooltipStyle::read, ItemTooltipStyle::write);
+
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemTooltipDisplay> TOOLTIP_DISPLAY = define("tooltip_display",
+            ItemTooltipDisplay::read, ItemTooltipDisplay::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemWeapon> WEAPON = define("weapon",
+            ItemWeapon::read, ItemWeapon::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemBlocksAttacks> BLOCKS_ATTACKS = define("blocks_attacks",
+            ItemBlocksAttacks::read, ItemBlocksAttacks::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemPotionDurationScale> POTION_DURATION_SCALE = define("potion_duration_scale",
+            ItemPotionDurationScale::read, ItemPotionDurationScale::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemProvidesTrimMaterial> PROVIDES_TRIM_MATERIAL = define("provides_trim_material",
+            ItemProvidesTrimMaterial::read, ItemProvidesTrimMaterial::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemProvidesBannerPatterns> PROVIDES_BANNER_PATTERNS = define("provides_banner_patterns",
+            ItemProvidesBannerPatterns::read, ItemProvidesBannerPatterns::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ItemBreakSound> BREAK_SOUND = define("break_sound",
+            ItemBreakSound::read, ItemBreakSound::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<VillagerVariantComponent> VILLAGER_VARIANT = define("villager/variant",
+            VillagerVariantComponent::read, VillagerVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<WolfVariantComponent> WOLF_VARIANT = define("wolf/variant",
+            WolfVariantComponent::read, WolfVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<WolfSoundVariantComponent> WOLF_SOUND_VARIANT = define("wolf/sound_variant",
+            WolfSoundVariantComponent::read, WolfSoundVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<WolfCollarComponent> WOLF_COLLAR = define("wolf/collar",
+            WolfCollarComponent::read, WolfCollarComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<FoxVariantComponent> FOX_VARIANT = define("fox/variant",
+            FoxVariantComponent::read, FoxVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<SalmonSizeComponent> SALMON_SIZE = define("salmon/size",
+            SalmonSizeComponent::read, SalmonSizeComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ParrotVariantComponent> PARROT_VARIANT = define("parrot/variant",
+            ParrotVariantComponent::read, ParrotVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<TropicalFishPatternComponent> TROPICAL_FISH_PATTERN = define("tropical_fish/pattern",
+            TropicalFishPatternComponent::read, TropicalFishPatternComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<TropicalFishBaseColorComponent> TROPICAL_FISH_BASE_COLOR = define("tropical_fish/base_color",
+            TropicalFishBaseColorComponent::read, TropicalFishBaseColorComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<TropicalFishPatternColorComponent> TROPICAL_FISH_PATTERN_COLOR = define("tropical_fish/pattern_color",
+            TropicalFishPatternColorComponent::read, TropicalFishPatternColorComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<MooshroomVariantComponent> MOOSHROOM_VARIANT = define("mooshroom/variant",
+            MooshroomVariantComponent::read, MooshroomVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<RabbitVariantComponent> RABBIT_VARIANT = define("rabbit/variant",
+            RabbitVariantComponent::read, RabbitVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<PigVariantComponent> PIG_VARIANT = define("pig/variant",
+            PigVariantComponent::read, PigVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<CowVariantComponent> COW_VARIANT = define("cow/variant",
+            CowVariantComponent::read, CowVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ChickenVariantComponent> CHICKEN_VARIANT = define("chicken/variant",
+            ChickenVariantComponent::read, ChickenVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<FrogVariantComponent> FROG_VARIANT = define("frog/variant",
+            FrogVariantComponent::read, FrogVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<HorseVariantComponent> HORSE_VARIANT = define("horse/variant",
+            HorseVariantComponent::read, HorseVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<PaintingVariantComponent> PAINTING_VARIANT = define("painting/variant",
+            PaintingVariantComponent::read, PaintingVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<LlamaVariantComponent> LLAMA_VARIANT = define("llama/variant",
+            LlamaVariantComponent::read, LlamaVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<AxolotlVariantComponent> AXOLOTL_VARIANT = define("axolotl/variant",
+            AxolotlVariantComponent::read, AxolotlVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<CatVariantComponent> CAT_VARIANT = define("cat/variant",
+            CatVariantComponent::read, CatVariantComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<CatCollarComponent> CAT_COLLAR = define("cat/collar",
+            CatCollarComponent::read, CatCollarComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<SheepColorComponent> SHEEP_COLOR = define("sheep/color",
+            SheepColorComponent::read, SheepColorComponent::write);
+    /**
+     * Added with 1.21.5
+     */
+    public static final ComponentType<ShulkerColorComponent> SHULKER_COLOR = define("shulker/color",
+            ShulkerColorComponent::read, ShulkerColorComponent::write);
+
+    /**
+     * Returns an immutable view of the component types.
+     *
+     * @return Component Types
+     */
+    public static Collection<ComponentType<?>> values() {
+        return REGISTRY.getEntries();
    }

-    @FunctionalInterface
-    public interface Reader<T> extends Function<PacketWrapper<?>, T> {}
-
-    @FunctionalInterface
-    public interface Writer<T> extends BiConsumer<PacketWrapper<?>, T> {}
+    static {
+        REGISTRY.unloadMappings();
+    }
 }
@@ -0,0 +1,119 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2024 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;
+
+import com.github.retrooper.packetevents.protocol.component.ComponentType.Decoder;
+import com.github.retrooper.packetevents.protocol.component.ComponentType.Encoder;
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.util.mappings.VersionedRegistry;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Contains all enchantment effect component types.
+ *
+ * @see ComponentTypes
+ */
+public final class EnchantEffectComponentTypes {
+
+    private static final VersionedRegistry<ComponentType<?>> REGISTRY = new VersionedRegistry<>("enchantment_effect_component_type");
+
+    private EnchantEffectComponentTypes() {
+    }
+
+    @ApiStatus.Internal
+    public static <T> ComponentType<T> define(String key) {
+        return define(key, null, null);
+    }
+
+    @ApiStatus.Internal
+    public static <T> ComponentType<T> define(String key, @Nullable Decoder<T> reader, @Nullable Encoder<T> writer) {
+        return REGISTRY.define(key, data -> new StaticComponentType<>(data, reader, writer));
+    }
+
+    public static VersionedRegistry<ComponentType<?>> getRegistry() {
+        return REGISTRY;
+    }
+
+    // just pass everything through for now
+    public static ComponentType<NBT> DAMAGE_PROTECTION = define("damage_protection",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> DAMAGE_IMMUNITY = define("damage_immunity",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> DAMAGE = define("damage",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> SMASH_DAMAGE_PER_FALLEN_BLOCK = define("smash_damage_per_fallen_block",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> KNOCKBACK = define("knockback",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> ARMOR_EFFECTIVENESS = define("armor_effectiveness",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> POST_ATTACK = define("post_attack",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> HIT_BLOCK = define("hit_block",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> ITEM_DAMAGE = define("item_damage",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> ATTRIBUTES = define("attributes",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> EQUIPMENT_DROPS = define("equipment_drops",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> LOCATION_CHANGED = define("location_changed",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> TICK = define("tick",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> AMMO_USE = define("ammo_use",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> PROJECTILE_PIERCING = define("projectile_piercing",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> PROJECTILE_SPAWNED = define("projectile_spawned",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> PROJECTILE_SPREAD = define("projectile_spread",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> PROJECTILE_COUNT = define("projectile_count",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> TRIDENT_RETURN_ACCELERATION = define("trident_return_acceleration",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> FISHING_TIME_REDUCTION = define("fishing_time_reduction",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> FISHING_LUCK_BONUS = define("fishing_luck_bonus",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> BLOCK_EXPERIENCE = define("block_experience",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> MOB_EXPERIENCE = define("mob_experience",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> REPAIR_WITH_XP = define("repair_with_xp",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> CROSSBOW_CHARGE_TIME = define("crossbow_charge_time",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> CROSSBOW_CHARGING_SOUNDS = define("crossbow_charging_sounds",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> TRIDENT_SOUND = define("trident_sound",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> PREVENT_EQUIPMENT_DROP = define("prevent_equipment_drop",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> PREVENT_ARMOR_CHANGE = define("prevent_armor_change",
+            (nbt, version) -> nbt, (val, version) -> val);
+    public static ComponentType<NBT> TRIDENT_SPIN_ATTACK_STRENGTH = define("trident_spin_attack_strength",
+            (nbt, version) -> nbt, (val, version) -> val);
+
+    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.component;
+
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public final class HashedComponentPatchMap {
+
+    private final Map<ComponentType<?>, Integer> addedComponents;
+    private final Set<ComponentType<?>> removedComponents;
+
+    public HashedComponentPatchMap(Map<ComponentType<?>, Integer> addedComponents, Set<ComponentType<?>> removedComponents) {
+        this.addedComponents = addedComponents;
+        this.removedComponents = removedComponents;
+    }
+
+    public static HashedComponentPatchMap read(PacketWrapper<?> wrapper) {
+        Map<ComponentType<?>, Integer> addedComponents = wrapper.readMap(ew ->
+                ew.readMappedEntity(ComponentTypes.getRegistry()), PacketWrapper::readInt);
+        Set<ComponentType<?>> removedComponents = wrapper.readCollection(HashSet::new, ew ->
+                ew.readMappedEntity(ComponentTypes.getRegistry()));
+        return new HashedComponentPatchMap(addedComponents, removedComponents);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, HashedComponentPatchMap map) {
+        wrapper.writeMap(map.addedComponents, PacketWrapper::writeMappedEntity, PacketWrapper::writeInt);
+        wrapper.writeCollection(map.removedComponents, PacketWrapper::writeMappedEntity);
+    }
+
+    public Map<ComponentType<?>, Integer> getAddedComponents() {
+        return this.addedComponents;
+    }
+
+    public Set<ComponentType<?>> getRemovedComponents() {
+        return this.removedComponents;
+    }
+}
@@ -18,13 +18,57 @@

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

+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;
+        StaticComponentMap.Builder components = StaticComponentMap.builder();
+        for (Map.Entry<String, NBT> entry : compound.getTags().entrySet()) {
+            ComponentType<?> type = registry.getByName(entry.getKey());
+            if (type == null) {
+                throw new IllegalStateException("Unknown component type named " + entry.getKey() + " encountered");
+            }
+            Object value = type.decode(entry.getValue(), version);
+            components.set((ComponentType<? super Object>) type, value);
+        }
+        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();
+        for (Map.Entry<ComponentType<?>, ?> entry : components.getDelegate().entrySet()) {
+            String key = entry.getKey().getName().toString();
+            NBT value = ((ComponentType<? super Object>) entry.getKey()).encode(entry.getValue(), version);
+            compound.setTag(key, value);
+        }
+        return compound;
+    }
+
    default <T> Optional<T> getOptional(ComponentType<T> type) {
        return Optional.ofNullable(this.get(type));
    }
@@ -96,6 +96,20 @@ public class PatchableComponentMap implements IComponentMap {
        return this.patches;
    }

+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (!(obj instanceof PatchableComponentMap)) return false;
+        PatchableComponentMap that = (PatchableComponentMap) obj;
+        if (!this.base.equals(that.base)) return false;
+        return this.patches.equals(that.patches);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.base, this.patches);
+    }
+
    @Override
    public String toString() {
        return "PatchableComponentMap{base=" + this.base + ", patches=" + this.patches + '}';
@@ -22,16 +22,20 @@ import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemAtt
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemEnchantments;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemLore;
 import com.github.retrooper.packetevents.protocol.component.builtin.item.ItemRarity;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Nullable;

 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;

 public class StaticComponentMap implements IComponentMap {

    public static final StaticComponentMap EMPTY = new StaticComponentMap(Collections.emptyMap());
+
+    @ApiStatus.Obsolete
    public static final StaticComponentMap SHARED_ITEM_COMPONENTS = builder()
            .set(ComponentTypes.MAX_STACK_SIZE, 64)
            .set(ComponentTypes.LORE, ItemLore.EMPTY)
@@ -82,6 +86,24 @@ public class StaticComponentMap implements IComponentMap {
        return this.empty;
    }

+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (!(obj instanceof StaticComponentMap)) return false;
+        StaticComponentMap that = (StaticComponentMap) obj;
+        return this.delegate.equals(that.delegate);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.delegate);
+    }
+
+    @Override
+    public String toString() {
+        return "Components" + this.delegate;
+    }
+
    public static class Builder {

        private final Map<ComponentType<?>, Object> map = new HashMap<>();
@@ -93,6 +115,10 @@ public class StaticComponentMap implements IComponentMap {
            return new StaticComponentMap(this.map);
        }

+        public Builder setAll(StaticComponentMap.Builder map) {
+            return this.setAll(map.map);
+        }
+
        public Builder setAll(StaticComponentMap map) {
            return this.setAll(map.getDelegate());
        }
@@ -0,0 +1,109 @@
+/*
+ * This file is part of packetevents - https://github.com/retrooper/packetevents
+ * Copyright (C) 2024 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;
+
+import com.github.retrooper.packetevents.protocol.mapper.AbstractMappedEntity;
+import com.github.retrooper.packetevents.protocol.nbt.NBT;
+import com.github.retrooper.packetevents.protocol.player.ClientVersion;
+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 java.util.function.Function;
+
+public class StaticComponentType<T> extends AbstractMappedEntity implements ComponentType<T> {
+
+    private final @Nullable Reader<T> reader;
+    private final @Nullable Writer<T> writer;
+    private final @Nullable Decoder<T> decoder;
+    private final @Nullable Encoder<T> encoder;
+
+    @ApiStatus.Internal
+    public StaticComponentType(
+            @Nullable TypesBuilderData data,
+            @Nullable Reader<T> reader,
+            @Nullable Writer<T> writer
+    ) {
+        this(data, reader, writer, null, null);
+    }
+
+    @ApiStatus.Internal
+    public StaticComponentType(
+            @Nullable TypesBuilderData data,
+            @Nullable Decoder<T> decoder,
+            @Nullable Encoder<T> encoder
+    ) {
+        this(data, null, null, decoder, encoder);
+    }
+
+    @ApiStatus.Internal
+    public StaticComponentType(
+            @Nullable TypesBuilderData data,
+            @Nullable Reader<T> reader,
+            @Nullable Writer<T> writer,
+            @Nullable Decoder<T> decoder,
+            @Nullable Encoder<T> encoder
+    ) {
+        super(data);
+        this.reader = reader;
+        this.writer = writer;
+        this.decoder = decoder;
+        this.encoder = encoder;
+    }
+
+    @Override
+    public T read(PacketWrapper<?> wrapper) {
+        return this.reader != null ? this.reader.apply(wrapper) : null;
+    }
+
+    @Override
+    public void write(PacketWrapper<?> wrapper, T content) {
+        if (this.writer != null) {
+            this.writer.accept(wrapper, content);
+        }
+    }
+
+    @Override
+    public T decode(NBT nbt, ClientVersion version) {
+        if (this.decoder != null) {
+            return this.decoder.decode(nbt, version);
+        }
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public NBT encode(T value, ClientVersion version) {
+        if (this.encoder != null) {
+            return this.encoder.encode(value, version);
+        }
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public <Z> ComponentType<Z> legacyMap(Function<T, Z> mapper, Function<Z, T> unmapper) {
+        Reader<Z> reader = this.reader != null ? wrapper -> mapper.apply(this.reader.apply(wrapper)) : null;
+        Writer<Z> writer = this.writer != null ? (wrapper, value) -> this.writer.accept(wrapper, unmapper.apply(value)) : null;
+        Decoder<Z> decoder = this.decoder != null ? (nbt, version) -> mapper.apply(this.decoder.decode(nbt, version)) : null;
+        Encoder<Z> encoder = this.encoder != null ? (value, version) -> this.encoder.encode(unmapper.apply(value), version) : null;
+        return new StaticComponentType<>(this.data, reader, writer, decoder, encoder);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.axolotl.AxolotlVariant;
+import com.github.retrooper.packetevents.protocol.entity.axolotl.AxolotlVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class AxolotlVariantComponent {
+
+    private AxolotlVariant variant;
+
+    public AxolotlVariantComponent(AxolotlVariant variant) {
+        this.variant = variant;
+    }
+
+    public static AxolotlVariantComponent read(PacketWrapper<?> wrapper) {
+        AxolotlVariant type = wrapper.readMappedEntity(AxolotlVariants.getRegistry());
+        return new AxolotlVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, AxolotlVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public AxolotlVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(AxolotlVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof AxolotlVariantComponent)) return false;
+        AxolotlVariantComponent that = (AxolotlVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.color.DyeColor;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class CatCollarComponent {
+
+    private DyeColor color;
+
+    public CatCollarComponent(DyeColor color) {
+        this.color = color;
+    }
+
+    public static CatCollarComponent read(PacketWrapper<?> wrapper) {
+        DyeColor type = DyeColor.read(wrapper);
+        return new CatCollarComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, CatCollarComponent component) {
+        DyeColor.write(wrapper, component.color);
+    }
+
+    public DyeColor getDyeColor() {
+        return this.color;
+    }
+
+    public void setDyeColor(DyeColor color) {
+        this.color = color;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof CatCollarComponent)) return false;
+        CatCollarComponent that = (CatCollarComponent) obj;
+        return this.color.equals(that.color);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.color);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.cat.CatVariant;
+import com.github.retrooper.packetevents.protocol.entity.cat.CatVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class CatVariantComponent {
+
+    private CatVariant variant;
+
+    public CatVariantComponent(CatVariant variant) {
+        this.variant = variant;
+    }
+
+    public static CatVariantComponent read(PacketWrapper<?> wrapper) {
+        CatVariant type = wrapper.readMappedEntity(CatVariants.getRegistry());
+        return new CatVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, CatVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public CatVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(CatVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof CatVariantComponent)) return false;
+        CatVariantComponent that = (CatVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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;
+
+import com.github.retrooper.packetevents.protocol.entity.chicken.ChickenVariant;
+import com.github.retrooper.packetevents.protocol.entity.chicken.ChickenVariants;
+import com.github.retrooper.packetevents.protocol.mapper.MaybeMappedEntity;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class ChickenVariantComponent {
+
+    private MaybeMappedEntity<ChickenVariant> variant;
+
+    public ChickenVariantComponent(MaybeMappedEntity<ChickenVariant> variant) {
+        this.variant = variant;
+    }
+
+    public static ChickenVariantComponent read(PacketWrapper<?> wrapper) {
+        MaybeMappedEntity<ChickenVariant> variant = MaybeMappedEntity.read(wrapper,
+                ChickenVariants.getRegistry(), ChickenVariant::read);
+        return new ChickenVariantComponent(variant);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ChickenVariantComponent component) {
+        MaybeMappedEntity.write(wrapper, component.variant, ChickenVariant::write);
+    }
+
+    public MaybeMappedEntity<ChickenVariant> getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(MaybeMappedEntity<ChickenVariant> variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof ChickenVariantComponent)) return false;
+        ChickenVariantComponent that = (ChickenVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.cow.CowVariant;
+import com.github.retrooper.packetevents.protocol.entity.cow.CowVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class CowVariantComponent {
+
+    private CowVariant variant;
+
+    public CowVariantComponent(CowVariant variant) {
+        this.variant = variant;
+    }
+
+    public static CowVariantComponent read(PacketWrapper<?> wrapper) {
+        CowVariant type = wrapper.readMappedEntity(CowVariants.getRegistry());
+        return new CowVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, CowVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public CowVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(CowVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof CowVariantComponent)) return false;
+        CowVariantComponent that = (CowVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.fox.FoxVariant;
+import com.github.retrooper.packetevents.protocol.entity.fox.FoxVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class FoxVariantComponent {
+
+    private FoxVariant variant;
+
+    public FoxVariantComponent(FoxVariant variant) {
+        this.variant = variant;
+    }
+
+    public static FoxVariantComponent read(PacketWrapper<?> wrapper) {
+        FoxVariant type = wrapper.readMappedEntity(FoxVariants.getRegistry());
+        return new FoxVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, FoxVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public FoxVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(FoxVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof FoxVariantComponent)) return false;
+        FoxVariantComponent that = (FoxVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.frog.FrogVariant;
+import com.github.retrooper.packetevents.protocol.entity.frog.FrogVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class FrogVariantComponent {
+
+    private FrogVariant variant;
+
+    public FrogVariantComponent(FrogVariant variant) {
+        this.variant = variant;
+    }
+
+    public static FrogVariantComponent read(PacketWrapper<?> wrapper) {
+        FrogVariant variant = wrapper.readMappedEntity(FrogVariants.getRegistry());
+        return new FrogVariantComponent(variant);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, FrogVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public FrogVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(FrogVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof FrogVariantComponent)) return false;
+        FrogVariantComponent that = (FrogVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.horse.HorseVariant;
+import com.github.retrooper.packetevents.protocol.entity.horse.HorseVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class HorseVariantComponent {
+
+    private HorseVariant variant;
+
+    public HorseVariantComponent(HorseVariant variant) {
+        this.variant = variant;
+    }
+
+    public static HorseVariantComponent read(PacketWrapper<?> wrapper) {
+        HorseVariant variant = wrapper.readMappedEntity(HorseVariants.getRegistry());
+        return new HorseVariantComponent(variant);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, HorseVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public HorseVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(HorseVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof HorseVariantComponent)) return false;
+        HorseVariantComponent that = (HorseVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.llama.LlamaVariant;
+import com.github.retrooper.packetevents.protocol.entity.llama.LlamaVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class LlamaVariantComponent {
+
+    private LlamaVariant variant;
+
+    public LlamaVariantComponent(LlamaVariant variant) {
+        this.variant = variant;
+    }
+
+    public static LlamaVariantComponent read(PacketWrapper<?> wrapper) {
+        LlamaVariant type = wrapper.readMappedEntity(LlamaVariants.getRegistry());
+        return new LlamaVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, LlamaVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public LlamaVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(LlamaVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof LlamaVariantComponent)) return false;
+        LlamaVariantComponent that = (LlamaVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.mooshroom.MooshroomVariant;
+import com.github.retrooper.packetevents.protocol.entity.mooshroom.MooshroomVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class MooshroomVariantComponent {
+
+    private MooshroomVariant variant;
+
+    public MooshroomVariantComponent(MooshroomVariant variant) {
+        this.variant = variant;
+    }
+
+    public static MooshroomVariantComponent read(PacketWrapper<?> wrapper) {
+        MooshroomVariant type = wrapper.readMappedEntity(MooshroomVariants.getRegistry());
+        return new MooshroomVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, MooshroomVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public MooshroomVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(MooshroomVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof MooshroomVariantComponent)) return false;
+        MooshroomVariantComponent that = (MooshroomVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.world.painting.PaintingVariant;
+import com.github.retrooper.packetevents.protocol.world.painting.PaintingVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class PaintingVariantComponent {
+
+    private PaintingVariant variant;
+
+    public PaintingVariantComponent(PaintingVariant variant) {
+        this.variant = variant;
+    }
+
+    public static PaintingVariantComponent read(PacketWrapper<?> wrapper) {
+        PaintingVariant variant = wrapper.readMappedEntity(PaintingVariants.getRegistry());
+        return new PaintingVariantComponent(variant);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, PaintingVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public PaintingVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(PaintingVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof PaintingVariantComponent)) return false;
+        PaintingVariantComponent that = (PaintingVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.parrot.ParrotVariant;
+import com.github.retrooper.packetevents.protocol.entity.parrot.ParrotVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class ParrotVariantComponent {
+
+    private ParrotVariant variant;
+
+    public ParrotVariantComponent(ParrotVariant variant) {
+        this.variant = variant;
+    }
+
+    public static ParrotVariantComponent read(PacketWrapper<?> wrapper) {
+        ParrotVariant type = wrapper.readMappedEntity(ParrotVariants.getRegistry());
+        return new ParrotVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, ParrotVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public ParrotVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(ParrotVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof ParrotVariantComponent)) return false;
+        ParrotVariantComponent that = (ParrotVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}
@@ -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.component.builtin;
+
+import com.github.retrooper.packetevents.protocol.entity.pig.PigVariant;
+import com.github.retrooper.packetevents.protocol.entity.pig.PigVariants;
+import com.github.retrooper.packetevents.wrapper.PacketWrapper;
+
+import java.util.Objects;
+
+public class PigVariantComponent {
+
+    private PigVariant variant;
+
+    public PigVariantComponent(PigVariant variant) {
+        this.variant = variant;
+    }
+
+    public static PigVariantComponent read(PacketWrapper<?> wrapper) {
+        PigVariant type = wrapper.readMappedEntity(PigVariants.getRegistry());
+        return new PigVariantComponent(type);
+    }
+
+    public static void write(PacketWrapper<?> wrapper, PigVariantComponent component) {
+        wrapper.writeMappedEntity(component.variant);
+    }
+
+    public PigVariant getVariant() {
+        return this.variant;
+    }
+
+    public void setVariant(PigVariant variant) {
+        this.variant = variant;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof PigVariantComponent)) return false;
+        PigVariantComponent that = (PigVariantComponent) obj;
+        return this.variant.equals(that.variant);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(this.variant);
+    }
+}