fix version sent in 1.8/1.12 detector

build.gradle

@@ -224,6 +224,7 @@ modrinth {
     dependencies {
         optional.project "P7dR8mSH" // fabric api
         optional.project "9CJED7xi" // legacy fabric api
+        embedded.project "P1OZGk5p" // viaversion
     }
 }
 

viafabric-mc1122/src/main/java/com/viaversion/fabric/mc1122/mixin/pipeline/client/MixinHandshakeC2SPacketAccessor.java

@@ -0,0 +1,11 @@
+package com.viaversion.fabric.mc1122.mixin.pipeline.client;
+
+import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(HandshakeC2SPacket.class)
+public interface MixinHandshakeC2SPacketAccessor {
+    @Accessor
+    void setProtocolVersion(int version);
+}

viafabric-mc1122/src/main/java/com/viaversion/fabric/mc1122/service/ProtocolAutoDetector.java

@@ -22,6 +22,7 @@
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
+import com.viaversion.fabric.mc1122.mixin.pipeline.client.MixinHandshakeC2SPacketAccessor;
 import io.netty.bootstrap.Bootstrap;
 import io.netty.channel.*;
 import io.netty.channel.socket.nio.NioSocketChannel;
@@ -34,6 +35,7 @@
 import net.minecraft.network.packet.c2s.query.QueryRequestC2SPacket;
 import net.minecraft.network.packet.s2c.query.QueryPongS2CPacket;
 import net.minecraft.network.packet.s2c.query.QueryResponseS2CPacket;
+import net.minecraft.realms.RealmsSharedConstants;
 import net.minecraft.server.ServerMetadata;
 import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
@@ -113,8 +115,8 @@ public void onDisconnected(Text reason) {
 
                                 HandshakeC2SPacket handshakeC2SPacket = new HandshakeC2SPacket(address.getHostString(),
                                         address.getPort(), NetworkState.STATUS);
-                                ((HandshakeInterceptor) handshakeC2SPacket).viaFabric$setProtocolVersion(
-                                        Via.getAPI().getServerVersion().lowestSupportedVersion());
+                                ((MixinHandshakeC2SPacketAccessor) handshakeC2SPacket).setProtocolVersion(
+                                        RealmsSharedConstants.NETWORK_PROTOCOL_VERSION);
                                 clientConnection.send(handshakeC2SPacket);
                                 clientConnection.send(new QueryRequestC2SPacket());
                             });

viafabric-mc1122/src/main/resources/mixins.viafabric1122.pipeline.json

@@ -9,7 +9,7 @@
   "client": [
     "client.MixinClientConnection",
     "client.MixinClientConnectionChInit",
-    "client.MixinHandshakeC2SPacket"
+    "client.MixinHandshakeC2SPacketAccessor"
   ],
   "injectors": {
     "defaultRequire": 1

viafabric-mc189/src/main/java/com/viaversion/fabric/mc189/service/ProtocolAutoDetector.java

@@ -34,11 +34,11 @@
 import net.minecraft.network.packet.c2s.query.QueryRequestC2SPacket;
 import net.minecraft.network.packet.s2c.query.QueryPongS2CPacket;
 import net.minecraft.network.packet.s2c.query.QueryResponseS2CPacket;
+import net.minecraft.realms.RealmsSharedConstants;
 import net.minecraft.server.ServerMetadata;
 import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
 import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
-import com.viaversion.viaversion.api.Via;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
@@ -110,7 +110,7 @@ public void onDisconnected(Text reason) {
                                     }
                                 });
 
-                                clientConnection.send(new HandshakeC2SPacket(Via.getAPI().getServerVersion().lowestSupportedVersion(), address.getHostString(),
+                                clientConnection.send(new HandshakeC2SPacket(RealmsSharedConstants.NETWORK_PROTOCOL_VERSION, address.getHostString(),
                                         address.getPort(), NetworkState.STATUS));
                                 clientConnection.send(new QueryRequestC2SPacket());
                             });