diff --git a/gradle.properties b/gradle.properties
index 360e934..25b0983 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,7 +9,7 @@ majorVersion       = 0
 fabricLoader       = 0.15.3
 fabricApi          = 0.93.1+1.20.4
 forge              = 49.0.19
-neo                = 20.4.96-beta
+neo                = 20.4.171
 
 cf.projectId       = 615134
 mr.projectId       = ftdbN0KK
diff --git a/platform/fabric/src/main/java/lol/bai/badpackets/impl/fabric/FabricProxy.java b/platform/fabric/src/main/java/lol/bai/badpackets/impl/fabric/FabricProxy.java
index 7462d52..97910b7 100644
--- a/platform/fabric/src/main/java/lol/bai/badpackets/impl/fabric/FabricProxy.java
+++ b/platform/fabric/src/main/java/lol/bai/badpackets/impl/fabric/FabricProxy.java
@@ -1,5 +1,8 @@
 package lol.bai.badpackets.impl.fabric;
 
+import java.util.Set;
+import java.util.function.Supplier;
+
 import lol.bai.badpackets.impl.Constants;
 import lol.bai.badpackets.impl.platform.PlatformProxy;
 import net.fabricmc.fabric.api.client.networking.v1.ClientConfigurationNetworking;
@@ -9,6 +12,7 @@
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.protocol.Packet;
+import net.minecraft.resources.ResourceLocation;
 
 public class FabricProxy extends PlatformProxy {
 
@@ -21,31 +25,31 @@ public boolean canSendVanillaRegisterPackets() {
     }
 
     @Override
-    public Packet<?> createVanillaRegisterConfigS2CPacket(FriendlyByteBuf buf) {
+    public Packet<?> createVanillaRegisterConfigS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
         return HAS_FABRIC_API
-            ? ServerConfigurationNetworking.createS2CPacket(Constants.MC_REGISTER_CHANNEL, buf)
-            : super.createVanillaRegisterConfigS2CPacket(buf);
+            ? ServerConfigurationNetworking.createS2CPacket(Constants.MC_REGISTER_CHANNEL, buf.get())
+            : super.createVanillaRegisterConfigS2CPacket(channels, buf);
     }
 
     @Override
-    public Packet<?> createVanillaRegisterConfigC2SPacket(FriendlyByteBuf buf) {
+    public Packet<?> createVanillaRegisterConfigC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
         return HAS_FABRIC_API
-            ? ClientConfigurationNetworking.createC2SPacket(Constants.MC_REGISTER_CHANNEL, buf)
-            : super.createVanillaRegisterConfigC2SPacket(buf);
+            ? ClientConfigurationNetworking.createC2SPacket(Constants.MC_REGISTER_CHANNEL, buf.get())
+            : super.createVanillaRegisterConfigC2SPacket(channels, buf);
     }
 
     @Override
-    public Packet<?> createVanillaRegisterPlayS2CPacket(FriendlyByteBuf buf) {
+    public Packet<?> createVanillaRegisterPlayS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
         return HAS_FABRIC_API
-            ? ServerPlayNetworking.createS2CPacket(Constants.MC_REGISTER_CHANNEL, buf)
-            : super.createVanillaRegisterPlayS2CPacket(buf);
+            ? ServerPlayNetworking.createS2CPacket(Constants.MC_REGISTER_CHANNEL, buf.get())
+            : super.createVanillaRegisterPlayS2CPacket(channels, buf);
     }
 
     @Override
-    public Packet<?> createVanillaRegisterPlayC2SPacket(FriendlyByteBuf buf) {
+    public Packet<?> createVanillaRegisterPlayC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
         return HAS_FABRIC_API
-            ? ClientPlayNetworking.createC2SPacket(Constants.MC_REGISTER_CHANNEL, buf)
-            : super.createVanillaRegisterPlayC2SPacket(buf);
+            ? ClientPlayNetworking.createC2SPacket(Constants.MC_REGISTER_CHANNEL, buf.get())
+            : super.createVanillaRegisterPlayC2SPacket(channels, buf);
     }
 
 }
diff --git a/platform/forge/src/main/java/lol/bai/badpackets/impl/forge/ForgeProxy.java b/platform/forge/src/main/java/lol/bai/badpackets/impl/forge/ForgeProxy.java
index 809b6a1..bb4ac90 100644
--- a/platform/forge/src/main/java/lol/bai/badpackets/impl/forge/ForgeProxy.java
+++ b/platform/forge/src/main/java/lol/bai/badpackets/impl/forge/ForgeProxy.java
@@ -1,5 +1,8 @@
 package lol.bai.badpackets.impl.forge;
 
+import java.util.Set;
+import java.util.function.Supplier;
+
 import lol.bai.badpackets.impl.Constants;
 import lol.bai.badpackets.impl.platform.PlatformProxy;
 import net.minecraft.network.FriendlyByteBuf;
@@ -7,27 +10,28 @@
 import net.minecraft.network.protocol.common.ClientboundCustomPayloadPacket;
 import net.minecraft.network.protocol.common.ServerboundCustomPayloadPacket;
 import net.minecraft.network.protocol.common.custom.DiscardedPayload;
+import net.minecraft.resources.ResourceLocation;
 
 public class ForgeProxy extends PlatformProxy {
 
     @Override
-    public Packet<?> createVanillaRegisterConfigS2CPacket(FriendlyByteBuf buf) {
-        return new ClientboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterConfigS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ClientboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
     @Override
-    public Packet<?> createVanillaRegisterConfigC2SPacket(FriendlyByteBuf buf) {
-        return new ServerboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterConfigC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ServerboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
     @Override
-    public Packet<?> createVanillaRegisterPlayS2CPacket(FriendlyByteBuf buf) {
-        return new ClientboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterPlayS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ClientboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
     @Override
-    public Packet<?> createVanillaRegisterPlayC2SPacket(FriendlyByteBuf buf) {
-        return new ServerboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterPlayC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ServerboundCustomPayloadPacket(new DiscardedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
 }
diff --git a/platform/neo/src/main/java/lol/bai/badpackets/impl/neo/NeoProxy.java b/platform/neo/src/main/java/lol/bai/badpackets/impl/neo/NeoProxy.java
index 0ae5240..6a8e453 100644
--- a/platform/neo/src/main/java/lol/bai/badpackets/impl/neo/NeoProxy.java
+++ b/platform/neo/src/main/java/lol/bai/badpackets/impl/neo/NeoProxy.java
@@ -1,35 +1,36 @@
 package lol.bai.badpackets.impl.neo;
 
+import java.util.Set;
+import java.util.function.Supplier;
+
 import lol.bai.badpackets.impl.platform.PlatformProxy;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.protocol.Packet;
+import net.minecraft.network.protocol.common.ClientboundCustomPayloadPacket;
+import net.minecraft.network.protocol.common.ServerboundCustomPayloadPacket;
+import net.minecraft.resources.ResourceLocation;
+import net.neoforged.neoforge.network.payload.MinecraftRegisterPayload;
 
-// TODO: NeoForge has different format for minecraft:register. Support it again when it reuse the old format.
 public class NeoProxy extends PlatformProxy {
 
     @Override
-    public boolean canSendVanillaRegisterPackets() {
-        return false;
-    }
-
-    @Override
-    public Packet<?> createVanillaRegisterConfigS2CPacket(FriendlyByteBuf buf) {
-        throw new UnsupportedOperationException("Not yet implemented");
+    public Packet<?> createVanillaRegisterConfigS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ClientboundCustomPayloadPacket(new MinecraftRegisterPayload(channels));
     }
 
     @Override
-    public Packet<?> createVanillaRegisterConfigC2SPacket(FriendlyByteBuf buf) {
-        throw new UnsupportedOperationException("Not yet implemented");
+    public Packet<?> createVanillaRegisterConfigC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ServerboundCustomPayloadPacket(new MinecraftRegisterPayload(channels));
     }
 
     @Override
-    public Packet<?> createVanillaRegisterPlayS2CPacket(FriendlyByteBuf buf) {
-        throw new UnsupportedOperationException("Not yet implemented");
+    public Packet<?> createVanillaRegisterPlayS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ClientboundCustomPayloadPacket(new MinecraftRegisterPayload(channels));
     }
 
     @Override
-    public Packet<?> createVanillaRegisterPlayC2SPacket(FriendlyByteBuf buf) {
-        throw new UnsupportedOperationException("Not yet implemented");
+    public Packet<?> createVanillaRegisterPlayC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ServerboundCustomPayloadPacket(new MinecraftRegisterPayload(channels));
     }
 
 }
diff --git a/src/main/java/lol/bai/badpackets/impl/handler/AbstractPacketHandler.java b/src/main/java/lol/bai/badpackets/impl/handler/AbstractPacketHandler.java
index a15f794..112dfe5 100644
--- a/src/main/java/lol/bai/badpackets/impl/handler/AbstractPacketHandler.java
+++ b/src/main/java/lol/bai/badpackets/impl/handler/AbstractPacketHandler.java
@@ -7,6 +7,7 @@
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Function;
+import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
 import io.netty.buffer.Unpooled;
@@ -145,21 +146,23 @@ public void remove() {
 
     private void sendVanillaChannelRegisterPacket(Set<ResourceLocation> channels) {
         if (PlatformProxy.INSTANCE.canSendVanillaRegisterPackets() && !channels.isEmpty()) {
-            FriendlyByteBuf buf = new FriendlyByteBuf(Unpooled.buffer());
-            boolean first = true;
-            for (ResourceLocation channel : channels) {
-                if (first) {
-                    first = false;
-                } else {
-                    buf.writeByte(0);
+            connection.send(createVanillaRegisterPacket(channels, () -> {
+                FriendlyByteBuf buf = new FriendlyByteBuf(Unpooled.buffer());
+                boolean first = true;
+                for (ResourceLocation channel : channels) {
+                    if (first) {
+                        first = false;
+                    } else {
+                        buf.writeByte(0);
+                    }
+                    buf.writeBytes(channel.toString().getBytes(StandardCharsets.US_ASCII));
                 }
-                buf.writeBytes(channel.toString().getBytes(StandardCharsets.US_ASCII));
-            }
-            connection.send(createVanillaRegisterPacket(buf));
+                return buf;
+            }));
         }
     }
 
-    protected abstract Packet<?> createVanillaRegisterPacket(FriendlyByteBuf buf);
+    protected abstract Packet<?> createVanillaRegisterPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf);
 
     @Override
     public void send(CustomPacketPayload payload, @Nullable PacketSendListener callback) {
diff --git a/src/main/java/lol/bai/badpackets/impl/handler/ClientConfigPacketHandler.java b/src/main/java/lol/bai/badpackets/impl/handler/ClientConfigPacketHandler.java
index 165aedb..77522c5 100644
--- a/src/main/java/lol/bai/badpackets/impl/handler/ClientConfigPacketHandler.java
+++ b/src/main/java/lol/bai/badpackets/impl/handler/ClientConfigPacketHandler.java
@@ -1,5 +1,8 @@
 package lol.bai.badpackets.impl.handler;
 
+import java.util.Set;
+import java.util.function.Supplier;
+
 import lol.bai.badpackets.api.config.ClientConfigPacketReadyCallback;
 import lol.bai.badpackets.api.config.ClientConfigPacketReceiver;
 import lol.bai.badpackets.impl.platform.PlatformProxy;
@@ -12,6 +15,7 @@
 import net.minecraft.network.protocol.Packet;
 import net.minecraft.network.protocol.common.ServerboundCustomPayloadPacket;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 
 public class ClientConfigPacketHandler extends AbstractPacketHandler<ClientConfigPacketReceiver<CustomPacketPayload>> {
 
@@ -26,8 +30,8 @@ public ClientConfigPacketHandler(Minecraft client, ClientConfigurationPacketList
     }
 
     @Override
-    protected Packet<?> createVanillaRegisterPacket(FriendlyByteBuf buf) {
-        return PlatformProxy.INSTANCE.createVanillaRegisterConfigC2SPacket(buf);
+    protected Packet<?> createVanillaRegisterPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return PlatformProxy.INSTANCE.createVanillaRegisterConfigC2SPacket(channels, buf);
     }
 
     @Override
diff --git a/src/main/java/lol/bai/badpackets/impl/handler/ClientPlayPacketHandler.java b/src/main/java/lol/bai/badpackets/impl/handler/ClientPlayPacketHandler.java
index a7b0649..804015e 100644
--- a/src/main/java/lol/bai/badpackets/impl/handler/ClientPlayPacketHandler.java
+++ b/src/main/java/lol/bai/badpackets/impl/handler/ClientPlayPacketHandler.java
@@ -1,5 +1,8 @@
 package lol.bai.badpackets.impl.handler;
 
+import java.util.Set;
+import java.util.function.Supplier;
+
 import lol.bai.badpackets.api.play.ClientPlayPacketReadyCallback;
 import lol.bai.badpackets.api.play.ClientPlayPacketReceiver;
 import lol.bai.badpackets.impl.platform.PlatformProxy;
@@ -11,6 +14,7 @@
 import net.minecraft.network.protocol.Packet;
 import net.minecraft.network.protocol.common.ServerboundCustomPayloadPacket;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 
 public class ClientPlayPacketHandler extends AbstractPacketHandler<ClientPlayPacketReceiver<CustomPacketPayload>> {
 
@@ -34,8 +38,8 @@ public static ClientPlayPacketHandler get() {
     }
 
     @Override
-    protected Packet<?> createVanillaRegisterPacket(FriendlyByteBuf buf) {
-        return PlatformProxy.INSTANCE.createVanillaRegisterPlayC2SPacket(buf);
+    protected Packet<?> createVanillaRegisterPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return PlatformProxy.INSTANCE.createVanillaRegisterPlayC2SPacket(channels, buf);
     }
 
     @Override
diff --git a/src/main/java/lol/bai/badpackets/impl/handler/ServerConfigPacketHandler.java b/src/main/java/lol/bai/badpackets/impl/handler/ServerConfigPacketHandler.java
index e25af21..d6b6d6e 100644
--- a/src/main/java/lol/bai/badpackets/impl/handler/ServerConfigPacketHandler.java
+++ b/src/main/java/lol/bai/badpackets/impl/handler/ServerConfigPacketHandler.java
@@ -2,7 +2,9 @@
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Set;
 import java.util.function.Consumer;
+import java.util.function.Supplier;
 
 import lol.bai.badpackets.api.config.ConfigTaskExecutor;
 import lol.bai.badpackets.api.config.ServerConfigPacketReadyCallback;
@@ -46,8 +48,8 @@ public CallbackTask createCallbackTask() {
     }
 
     @Override
-    protected Packet<?> createVanillaRegisterPacket(FriendlyByteBuf buf) {
-        return PlatformProxy.INSTANCE.createVanillaRegisterConfigS2CPacket(buf);
+    protected Packet<?> createVanillaRegisterPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return PlatformProxy.INSTANCE.createVanillaRegisterConfigS2CPacket(channels, buf);
     }
 
     @Override
diff --git a/src/main/java/lol/bai/badpackets/impl/handler/ServerPlayPacketHandler.java b/src/main/java/lol/bai/badpackets/impl/handler/ServerPlayPacketHandler.java
index b1c5188..b56763c 100644
--- a/src/main/java/lol/bai/badpackets/impl/handler/ServerPlayPacketHandler.java
+++ b/src/main/java/lol/bai/badpackets/impl/handler/ServerPlayPacketHandler.java
@@ -1,5 +1,8 @@
 package lol.bai.badpackets.impl.handler;
 
+import java.util.Set;
+import java.util.function.Supplier;
+
 import lol.bai.badpackets.api.play.ServerPlayPacketReadyCallback;
 import lol.bai.badpackets.api.play.ServerPlayPacketReceiver;
 import lol.bai.badpackets.impl.platform.PlatformProxy;
@@ -10,6 +13,7 @@
 import net.minecraft.network.protocol.Packet;
 import net.minecraft.network.protocol.common.ClientboundCustomPayloadPacket;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.server.network.ServerGamePacketListenerImpl;
@@ -30,8 +34,8 @@ public static ServerPlayPacketHandler get(ServerPlayer player) {
     }
 
     @Override
-    protected Packet<?> createVanillaRegisterPacket(FriendlyByteBuf buf) {
-        return PlatformProxy.INSTANCE.createVanillaRegisterPlayS2CPacket(buf);
+    protected Packet<?> createVanillaRegisterPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return PlatformProxy.INSTANCE.createVanillaRegisterPlayS2CPacket(channels, buf);
     }
 
     @Override
diff --git a/src/main/java/lol/bai/badpackets/impl/platform/PlatformProxy.java b/src/main/java/lol/bai/badpackets/impl/platform/PlatformProxy.java
index f84fb01..a723725 100644
--- a/src/main/java/lol/bai/badpackets/impl/platform/PlatformProxy.java
+++ b/src/main/java/lol/bai/badpackets/impl/platform/PlatformProxy.java
@@ -1,6 +1,8 @@
 package lol.bai.badpackets.impl.platform;
 
 import java.util.ServiceLoader;
+import java.util.Set;
+import java.util.function.Supplier;
 
 import lol.bai.badpackets.impl.Constants;
 import lol.bai.badpackets.impl.payload.UntypedPayload;
@@ -8,6 +10,7 @@
 import net.minecraft.network.protocol.Packet;
 import net.minecraft.network.protocol.common.ClientboundCustomPayloadPacket;
 import net.minecraft.network.protocol.common.ServerboundCustomPayloadPacket;
+import net.minecraft.resources.ResourceLocation;
 
 public class PlatformProxy {
 
@@ -17,20 +20,20 @@ public boolean canSendVanillaRegisterPackets() {
         return true;
     }
 
-    public Packet<?> createVanillaRegisterConfigC2SPacket(FriendlyByteBuf buf) {
-        return new ServerboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterConfigC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ServerboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
-    public Packet<?> createVanillaRegisterConfigS2CPacket(FriendlyByteBuf buf) {
-        return new ClientboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterConfigS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ClientboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
-    public Packet<?> createVanillaRegisterPlayC2SPacket(FriendlyByteBuf buf) {
-        return new ServerboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterPlayC2SPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ServerboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
-    public Packet<?> createVanillaRegisterPlayS2CPacket(FriendlyByteBuf buf) {
-        return new ClientboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf));
+    public Packet<?> createVanillaRegisterPlayS2CPacket(Set<ResourceLocation> channels, Supplier<FriendlyByteBuf> buf) {
+        return new ClientboundCustomPayloadPacket(new UntypedPayload(Constants.MC_REGISTER_CHANNEL, buf.get()));
     }
 
 }