Index: Migration/Scripts/src/Migration.Scripts.Data/UpgradeScript.cs
===================================================================
diff -u -r85ff91388190d242a5bd74e110b2c5f8b177bff3 -r6e8799128485ac9ff7eb5a8ddac37ce805ba6642
--- Migration/Scripts/src/Migration.Scripts.Data/UpgradeScript.cs	(.../UpgradeScript.cs)	(revision 85ff91388190d242a5bd74e110b2c5f8b177bff3)
+++ Migration/Scripts/src/Migration.Scripts.Data/UpgradeScript.cs	(.../UpgradeScript.cs)	(revision 6e8799128485ac9ff7eb5a8ddac37ce805ba6642)
@@ -30,8 +30,8 @@
     /// </summary>
     public abstract class UpgradeScript
     {
-        private readonly string fromVersion;
-        private readonly string toVersion;
+        protected readonly string fromVersion;
+        protected readonly string toVersion;
 
         /// <summary>
         /// Creates a new instance of the <see cref="UpgradeScript"/> class.