diff --git a/VisualTeensy/ViewModel/LibrariesTab/LibraryVM.cs b/VisualTeensy/ViewModel/LibrariesTab/LibraryVM.cs
index 4833a2f..b0c4f6a 100644
--- a/VisualTeensy/ViewModel/LibrariesTab/LibraryVM.cs
+++ b/VisualTeensy/ViewModel/LibrariesTab/LibraryVM.cs
@@ -2,6 +2,7 @@
 using vtCore;
 using System.Linq;
 using vtCore.Interfaces;
+using System;
 
 namespace ViewModel
 {
@@ -13,15 +14,48 @@ public class LibraryVM : BaseViewModel
         //public string parentRepository { get; }
 
         public ILibrary selectedVersion { get; set; }
-                       
+
 
         public LibraryVM(IEnumerable<ILibrary> lib/*, string repositoryName*/)
         {
             //parentRepository = string.IsNullOrWhiteSpace(repositoryName) ? "?" : repositoryName;
-            this.versions = lib.OrderBy(v => v.version).ToList();
-            selectedVersion = this.versions.LastOrDefault();
+            this.versions = lib.OrderByDescending(v => v.v).ToList();
+
+
+            selectedVersion = this.versions.FirstOrDefault();
         }
 
         public override string ToString() => name;
+
+
+
     }
 }
+
+    //public class SortPara : IComparable<SortPara>
+    //{
+    //    public List<int> numbers { get; set; }
+    //    public string strNumbers { get; set; }
+    //    public SortPara(string strNumbers)
+    //    {
+    //        this.strNumbers = strNumbers;
+    //        numbers = strNumbers.Split(new char[] { '.' }).Select(x => int.Parse(x)).ToList();
+
+    //    }
+    //    public int CompareTo(SortPara other)
+    //    {
+    //        int shortest = this.numbers.Count < other.numbers.Count ? this.numbers.Count : other.numbers.Count;
+    //        int results = 0;
+    //        for (int i = 0; i < shortest; i++)
+    //        {
+    //            if (this.numbers[i] != other.numbers[i])
+    //            {
+    //                results = this.numbers[i].CompareTo(other.numbers[i]);
+    //                break;
+    //            }
+    //        }
+    //        return results;
+    //    }
+    //}
+
+
diff --git a/vtCore/Implementation/Libraries/Library.cs b/vtCore/Implementation/Libraries/Library.cs
index 92e2db7..3d38b72 100644
--- a/vtCore/Implementation/Libraries/Library.cs
+++ b/vtCore/Implementation/Libraries/Library.cs
@@ -7,9 +7,21 @@
 namespace vtCore
 {
     public class Library : ILibrary
-    {        
+    {
         public string name { get; set; }                // name, can contain spaces
         public string version { get; set; }             // more than one version of the lib can be found in repos
+        public Version v // experimental, replace version string by version if this works out
+        {
+            get
+            {
+                if(Version.TryParse(version, out Version ver))
+                {
+                    return ver;
+                }
+                return new Version();
+            }
+        }
+
         public string author { get; set; }              // no format requirements
         public string maintainer { get; set; }          // no format requirements
         public string sentence { get; set; }            // short description
@@ -30,8 +42,8 @@ public class Library : ILibrary
 
         protected Library(ILibrary copyMe)
         {
-            Type t = copyMe.GetType();            
-            foreach (PropertyInfo propInf in t.GetProperties().Where(p=>p.SetMethod != null))
+            Type t = copyMe.GetType();
+            foreach (PropertyInfo propInf in t.GetProperties().Where(p => p.SetMethod != null))
             {
                 propInf.SetValue(this, propInf.GetValue(copyMe));
             }
diff --git a/vtCore/Implementation/Libraries/LibraryReader.cs b/vtCore/Implementation/Libraries/LibraryReader.cs
index 4243ab0..00dbe15 100644
--- a/vtCore/Implementation/Libraries/LibraryReader.cs
+++ b/vtCore/Implementation/Libraries/LibraryReader.cs
@@ -46,7 +46,7 @@ public static ILookup<string, ILibrary> parseIndexJsonRepository(string library_
                 var ret = jsonLibs.Select(t => new Library()
                 {
                     name = t.name,
-                    version = t.version,
+                    version = t.version,                 
                     author = t.author,
                     maintainer = t.maintainer,
                     sentence = t.sentence,
diff --git a/vtCore/Interfaces/ILibrary.cs b/vtCore/Interfaces/ILibrary.cs
index 77f78e2..0abd5c6 100644
--- a/vtCore/Interfaces/ILibrary.cs
+++ b/vtCore/Interfaces/ILibrary.cs
@@ -21,6 +21,7 @@ public interface ILibrary
         Uri sourceUri { get; }
         List<string> types { get;  }
         string version { get;  }
+        Version v { get; }
         string website { get; }
         string ToString();
     }