Almost forgot response handler woops, also allow PacketWrapper to be modifier :)

src/main/java/us/myles/ViaVersion2/api/PacketWrapper.java

@@ -31,6 +31,20 @@ public class PacketWrapper {
         throw new ArrayIndexOutOfBoundsException("Could not find type " + type.getTypeName() + " at " + index);
     }
 
+    public <T> void set(Type<T> type, int index, T value) {
+        int currentIndex = 0;
+        for (Pair<Type, Object> packetValue : packetValues) {
+            if (packetValue.getKey() == type) { // Ref check
+                if (currentIndex == index) {
+                    packetValue.setValue(value);
+                    return;
+                }
+                currentIndex++;
+            }
+        }
+        throw new ArrayIndexOutOfBoundsException("Could not find type " + type.getTypeName() + " at " + index);
+    }
+
     public <T> T read(Type<T> type) {
         System.out.println("Reading: " + type.getTypeName());
         // We could in the future log input read values, but honestly for things like bulk maps, mem waste D:

src/main/java/us/myles/ViaVersion2/api/protocol/base/BaseProtocol.java

@@ -1,6 +1,10 @@
 package us.myles.ViaVersion2.api.protocol.base;
 
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
 import us.myles.ViaVersion.packets.State;
+import us.myles.ViaVersion.util.PacketUtil;
 import us.myles.ViaVersion2.api.PacketWrapper;
 import us.myles.ViaVersion2.api.data.UserConnection;
 import us.myles.ViaVersion2.api.protocol.Protocol;
@@ -15,7 +19,29 @@ public class BaseProtocol extends Protocol {
     @Override
     protected void registerPackets() {
         /* Outgoing Packets */
-        registerOutgoing(State.STATUS, 0x00, 0x00); // Status Response Packet
+        registerOutgoing(State.STATUS, 0x00, 0x00, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.STRING);
+                handler(new PacketHandler() {
+                    @Override
+                    public void handle(PacketWrapper wrapper) {
+                        // TODO: Actually make this show compatible versions
+                        ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
+                        String originalStatus = wrapper.get(Type.STRING, 0);
+                        try {
+                            JSONObject json = (JSONObject) new JSONParser().parse(originalStatus);
+                            JSONObject version = (JSONObject) json.get("version");
+                            version.put("protocol", info.getProtocolVersion());
+
+                            wrapper.set(Type.STRING, 0, json.toJSONString()); // Update value
+                        } catch (ParseException e) {
+                            e.printStackTrace();
+                        }
+                    }
+                });
+            }
+        }); // Status Response Packet
         registerOutgoing(State.STATUS, 0x01, 0x01); // Status Pong Packet
 
         registerOutgoing(State.LOGIN, 0x00, 0x00); // Login Disconnect Packet

src/main/java/us/myles/ViaVersion2/api/util/Pair.java

@@ -2,12 +2,14 @@ package us.myles.ViaVersion2.api.util;
 
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.Setter;
 
 @Getter
+@Setter
 @EqualsAndHashCode
 public class Pair<X, Y> {
-    private final X key;
-    private final Y value;
+    private X key;
+    private Y value;
 
     public Pair(X key, Y value){
         this.key = key;