diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53c3b913..cd3b002f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ### Changelog
 
+#### Version - next
+* Added `WABBAJACK_ALWAYS_DISABLE` flag (see Readme for more info)
+* Modlist can't be installed if the current Wabbajack Version is smaller than the Version used during Compilation of the Modlist
+
 #### Version - 2.2.0.0 - 8/7/2020
 * Can now use NTFS XPRESS16 compression to reduce install sizes (optional in the settings panel)
 * Better valid directory detection during install
diff --git a/Wabbajack.Common/Consts.cs b/Wabbajack.Common/Consts.cs
index e98bec9b..de6e9dbd 100644
--- a/Wabbajack.Common/Consts.cs
+++ b/Wabbajack.Common/Consts.cs
@@ -11,6 +11,8 @@ namespace Wabbajack.Common
 {
     public static class Consts
     {
+        public static Version? CurrentWabbajackVersion { get; set; }
+        
         public static bool TestMode { get; set; } = false;
 
         public static RelativePath GameFolderFilesDir = (RelativePath)"Game Folder Files";
diff --git a/Wabbajack.Lib/ACompiler.cs b/Wabbajack.Lib/ACompiler.cs
index 705dabaf..6667f101 100644
--- a/Wabbajack.Lib/ACompiler.cs
+++ b/Wabbajack.Lib/ACompiler.cs
@@ -1,10 +1,12 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.IO.Compression;
 using System.Linq;
 using System.Reactive.Subjects;
+using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 using Wabbajack.Common;
@@ -54,6 +56,8 @@ namespace Wabbajack.Lib
         public ACompiler(int steps)
             : base(steps)
         {
+            //set in MainWindowVM
+            WabbajackVersion = Consts.CurrentWabbajackVersion;
         }
 
         public static void Info(string msg)
diff --git a/Wabbajack/View Models/Installers/InstallerVM.cs b/Wabbajack/View Models/Installers/InstallerVM.cs
index 9d4f1c34..fcf2c997 100644
--- a/Wabbajack/View Models/Installers/InstallerVM.cs	
+++ b/Wabbajack/View Models/Installers/InstallerVM.cs	
@@ -210,8 +210,10 @@ namespace Wabbajack
             ModListLocation.AdditionalError = this.WhenAny(x => x.ModList)
                 .Select<ModListVM, IErrorResponse>(modList =>
                 {
-                    if (modList == null) return ErrorResponse.Fail("ModList path resulted in a null object.");
-                    if (modList.Error != null) return ErrorResponse.Fail("ModList is corrupt", modList.Error);
+                    if (modList == null) return ErrorResponse.Fail("Modlist path resulted in a null object.");
+                    if (modList.Error != null) return ErrorResponse.Fail("Modlist is corrupt", modList.Error);
+                    if (modList.Version != null && modList.Version > Consts.CurrentWabbajackVersion)
+                        return ErrorResponse.Fail("The Modlist you are trying to install was made using a newer Version of Wabbajack. Please update Wabbajack before installing!");
                     return ErrorResponse.Success;
                 });
 
diff --git a/Wabbajack/View Models/MainWindowVM.cs b/Wabbajack/View Models/MainWindowVM.cs
index ac78cc79..7228dc89 100644
--- a/Wabbajack/View Models/MainWindowVM.cs	
+++ b/Wabbajack/View Models/MainWindowVM.cs	
@@ -120,6 +120,7 @@ namespace Wabbajack
             {
                 var assembly = Assembly.GetExecutingAssembly();
                 var fvi = FileVersionInfo.GetVersionInfo(assembly.Location);
+                Consts.CurrentWabbajackVersion = Version.Parse(fvi.FileVersion);
                 VersionDisplay = $"v{fvi.FileVersion}";
                 Utils.Log($"Wabbajack Version: {fvi.FileVersion}");