diff --git a/Dakota/Logic/DakotaManager.cs b/Dakota/Logic/DakotaManager.cs
index f713087f8..fc6917e3e 100644
--- a/Dakota/Logic/DakotaManager.cs
+++ b/Dakota/Logic/DakotaManager.cs
@@ -118,8 +118,6 @@ namespace Dakota.Logic
 			if (create4month < new DateTime(2026, 1, 1))
 				return 20;
 
-			throw new NotImplementedException("Keine Unterstützung von Version 21");
-
 			if (create4month < new DateTime(2027, 1, 1))
 				return 21;