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diff --git a/UnityTests.Unity5/Assets/Demigiant/DOTween/Editor/DOTweenEditor.dll.mdb b/UnityTests.Unity5/Assets/Demigiant/DOTween/Editor/DOTweenEditor.dll.mdb
index 4f5dabb..0cd74d4 100644
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diff --git a/UnityTests.Unity5/Assets/_Tests PRO/TempPro.unity b/UnityTests.Unity5/Assets/_Tests PRO/TempPro.unity
index 5ffc08c..d6e5cf7 100644
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diff --git a/_DOTween.Assembly/DOTween/DOTween.cs b/_DOTween.Assembly/DOTween/DOTween.cs
index 027d4a6..91b7290 100644
--- a/_DOTween.Assembly/DOTween/DOTween.cs
+++ b/_DOTween.Assembly/DOTween/DOTween.cs
@@ -32,7 +32,7 @@ namespace DG.Tweening
     public class DOTween
     {
         /// <summary>DOTween's version</summary>
-        public static readonly string Version = "1.1.120";
+        public static readonly string Version = "1.1.130";
 
         ///////////////////////////////////////////////
         // Options ////////////////////////////////////
diff --git a/_DOTween.Assembly/DOTweenEditor/Core/EditorUtils.cs b/_DOTween.Assembly/DOTweenEditor/Core/EditorUtils.cs
index 5454e5f..ce6c834 100644
--- a/_DOTween.Assembly/DOTweenEditor/Core/EditorUtils.cs
+++ b/_DOTween.Assembly/DOTweenEditor/Core/EditorUtils.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections;
 using System.Reflection;
 using System.IO;
+using DG.Tweening;
 using UnityEditor;
 using UnityEngine;
 
@@ -86,6 +87,40 @@ namespace DG.DOTweenEditor.Core
             return Directory.GetFiles(dotweenDir, "*.addon").Length > 0 || hasPro && Directory.GetFiles(dotweenProDir, "*.addon").Length > 0;
         }
 
+        // Deletes old DemiLib core if new one (inside Core directory) exists
+        public static void DeleteOldDemiLibCore()
+        {
+            string demiLibDir = EditorUtils.GetAssemblyFilePath(typeof(DOTween).Assembly);
+            string slash = demiLibDir.IndexOf("/") != -1 ? "/" : "\\";
+            demiLibDir = demiLibDir.Substring(0, demiLibDir.LastIndexOf(slash));
+            demiLibDir = demiLibDir.Substring(0, demiLibDir.LastIndexOf(slash)) + slash + "DemiLib";
+            string adbDemiLibDir = FullPathToADBPath(demiLibDir);
+            if (!AssetExists(adbDemiLibDir)) return;
+
+            string demiLibNewCoreDir = adbDemiLibDir + "/Core";
+            if (!AssetExists(demiLibNewCoreDir)) return;
+            
+            // New version present, delete old versions
+            DeleteAssetsIfExist(new[] {
+                adbDemiLibDir + "/DemiLib.dll",
+                adbDemiLibDir + "/DemiLib.xml",
+                adbDemiLibDir + "/DemiLib.dll.mdb",
+                adbDemiLibDir + "/Editor/DemiEditor.dll",
+                adbDemiLibDir + "/Editor/DemiEditor.xml",
+                adbDemiLibDir + "/Editor/DemiEditor.dll.mdb",
+                adbDemiLibDir + "/Editor/Imgs"
+            });
+            // Delete Editor folder if empty
+            if (AssetExists(adbDemiLibDir + "/Editor") && Directory.GetFiles(demiLibDir + slash + "Editor").Length == 0)
+                AssetDatabase.DeleteAsset(adbDemiLibDir + "/Editor");
+        }
+        static void DeleteAssetsIfExist(string[] adbFilePaths)
+        {
+            foreach (string f in adbFilePaths) {
+                if (AssetExists(f)) AssetDatabase.DeleteAsset(f);
+            }
+        }
+
         /// <summary>
         /// Returns TRUE if the file/directory at the given path exists.
         /// </summary>
diff --git a/_DOTween.Assembly/DOTweenEditor/DOTweenUtilityWindow.cs b/_DOTween.Assembly/DOTweenEditor/DOTweenUtilityWindow.cs
index 56bbbb3..0430823 100644
--- a/_DOTween.Assembly/DOTweenEditor/DOTweenUtilityWindow.cs
+++ b/_DOTween.Assembly/DOTweenEditor/DOTweenUtilityWindow.cs
@@ -2,6 +2,7 @@
 // Created: 2014/12/24 13:37
 
 using System.IO;
+using System.Reflection;
 using DG.DOTweenEditor.Core;
 using DG.Tweening;
 using DG.Tweening.Core;
@@ -21,6 +22,9 @@ namespace DG.DOTweenEditor
             string[] dotweenEntries = System.Array.FindAll(importedAssets, name => name.Contains("DOTween") && !name.EndsWith(".meta") && !name.EndsWith(".jpg") && !name.EndsWith(".png"));
             bool dotweenImported = dotweenEntries.Length > 0;
             if (dotweenImported) {
+                // Delete old DemiLib configuration
+                EditorUtils.DeleteOldDemiLibCore();
+                //
                 bool openSetupDialog = EditorUtils.DOTweenSetupRequired()
                     && (EditorPrefs.GetString(Application.dataPath + DOTweenUtilityWindow.Id) != Application.dataPath + DOTween.Version
                     || EditorPrefs.GetString(Application.dataPath + DOTweenUtilityWindow.IdPro) != Application.dataPath + EditorUtils.proVersion);
diff --git a/_DOTween.Assembly/bin/DOTween.dll b/_DOTween.Assembly/bin/DOTween.dll
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diff --git a/_DOTween.Assembly/bin/DOTween.dll.mdb b/_DOTween.Assembly/bin/DOTween.dll.mdb
index 5c8d149..7707a55 100644
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diff --git a/_DOTween.Assembly/bin/DOTween43.dll b/_DOTween.Assembly/bin/DOTween43.dll
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