diff --git a/common/src/main/java/io/github/kurrycat/mpkmod/compatibility/MCClasses/Minecraft.java b/common/src/main/java/io/github/kurrycat/mpkmod/compatibility/MCClasses/Minecraft.java
index eefbc348..a26e6e52 100644
--- a/common/src/main/java/io/github/kurrycat/mpkmod/compatibility/MCClasses/Minecraft.java
+++ b/common/src/main/java/io/github/kurrycat/mpkmod/compatibility/MCClasses/Minecraft.java
@@ -15,6 +15,7 @@
 @InfoString.AccessInstance
 public class Minecraft {
     public static String version;
+    public static String vfpVersion = null;
     public static WorldState worldState = WorldState.MENU;
     public static PlayState playState = PlayState.ACTIVE;
 
@@ -42,7 +43,7 @@ public static String getFps() {
 
     @InfoString.Getter
     public static String getMcVersion() {
-        return version;
+        return vfpVersion == null ? version : vfpVersion + " (VFP)";
     }
 
     @InfoString.Getter
@@ -97,7 +98,7 @@ public static boolean setInputs(TickInput inputs) {
     }
 
     public static boolean setInputs(Float yaw, boolean relYaw, Float pitch, boolean relPitch, int pressedInputs, int releasedInputs, int L, int R) {
-        if (!io.github.kurrycat.mpkmod.compatibility.MCClasses.Minecraft.isSingleplayer()) return false;
+        if (!Minecraft.isSingleplayer()) return false;
         if (!Interface.get().isPresent()) {
             API.LOGGER.info(API.COMPATIBILITY_MARKER, "Failed to set inputs, are you playing on an unsupported minecraft version?");
             return false;
diff --git a/fabric-1.21.11/build.gradle b/fabric-1.21.11/build.gradle
index 08bd95dc..75ba92ea 100644
--- a/fabric-1.21.11/build.gradle
+++ b/fabric-1.21.11/build.gradle
@@ -6,12 +6,18 @@ plugins {
 
 loom.runs.client.runDir = "../runs/run"
 
+repositories {
+    maven { url = "https://repo.viaversion.com" }
+    maven { url = "https://maven.lenni0451.net/everything" }
+}
+
 dependencies {
     minecraft "com.mojang:minecraft:${project.minecraft_version}"
     mappings loom.officialMojangMappings()
     modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
 
     modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+    modCompileOnly "com.viaversion:viafabricplus-api:4.4.0"
 
     implementation "com.github.MPKMod.MPKNetworkAPI:common:${project.networkApiVersion}"
 }
diff --git a/fabric-1.21.11/src/main/java/io/github/kurrycat/mpkmod/compatibility/fabric_1_21_11/MPKMod.java b/fabric-1.21.11/src/main/java/io/github/kurrycat/mpkmod/compatibility/fabric_1_21_11/MPKMod.java
index e87ddfcc..409737fe 100644
--- a/fabric-1.21.11/src/main/java/io/github/kurrycat/mpkmod/compatibility/fabric_1_21_11/MPKMod.java
+++ b/fabric-1.21.11/src/main/java/io/github/kurrycat/mpkmod/compatibility/fabric_1_21_11/MPKMod.java
@@ -1,6 +1,8 @@
 package io.github.kurrycat.mpkmod.compatibility.fabric_1_21_11;
 
 import com.mojang.blaze3d.vertex.PoseStack;
+import com.viaversion.viafabricplus.ViaFabricPlus;
+import com.viaversion.viafabricplus.api.ViaFabricPlusBase;
 import io.github.kurrycat.mpkmod.compatibility.API;
 import io.github.kurrycat.mpkmod.compatibility.MCClasses.KeyBinding;
 import io.github.kurrycat.mpkmod.compatibility.fabric_1_21_11.network.DataCustomPayload;
@@ -11,7 +13,9 @@
 import net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents;
 import net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking;
 import net.fabricmc.fabric.api.client.rendering.v1.hud.HudElementRegistry;
+import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.SharedConstants;
+import net.minecraft.client.KeyMapping;
 import net.minecraft.client.KeyMapping.Category;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.Identifier;
@@ -46,6 +50,21 @@ public void onInitialize() {
                 API.Events.onPluginMessage(packet);
             }
         }));
+
+
+        if (!FabricLoader.getInstance().isModLoaded("viafabricplus")) return;
+
+        ViaFabricPlusBase platform = ViaFabricPlus.getImpl();
+
+        platform.registerOnChangeProtocolVersionCallback((oldVersion, newVersion) -> {
+            String newVersionName = newVersion.getName();
+
+            io.github.kurrycat.mpkmod.compatibility.MCClasses.Minecraft.vfpVersion = (
+                    newVersionName.equals(io.github.kurrycat.mpkmod.compatibility.MCClasses.Minecraft.version)
+                            ? null
+                            : newVersionName
+            );
+        });
     }
 
     private void registerKeybindingsFromGUIs() {
@@ -80,7 +99,7 @@ public void init() {
     }
 
     private void registerKeyBindings() {
-        for (net.minecraft.client.KeyMapping k : Minecraft.getInstance().options.keyMappings) {
+        for (KeyMapping k : Minecraft.getInstance().options.keyMappings) {
             new KeyBinding(
                     () -> k.getTranslatedKeyMessage().getString(),
                     k.getName(),