diff --git a/CHANGELOG b/CHANGELOG
index 34368bce381920a43141711a94d8bf83180f8826..065e6f778add44e3be4ad4bee577b8bb91070599 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,5 @@
 *****************************************************************
-* ARIEL FGS HFS Repository, ARIEL-UVIE-PL-ML-001 0.2, CHANGELOG *
+* ARIEL FGS HFS Repository, ARIEL-UVIE-PL-ML-001 0.4, CHANGELOG *
 *****************************************************************
 
 ################################################################################
@@ -67,4 +67,10 @@ V0.4:
     - Extended Star catalouge to include neighbouring stars and load all catalouge stars during operation
 
     - Improved saving function to allow saving of current smearing and constant image components
+
+   Known Issues:
+
+    - No Simulation of "Spaceball" events. Will be added once the effects on the FGS have been studied. 
+
+
 ################################################################################
diff --git a/README b/README
index dec56dd132150c17252b4567ff49087954ef25f0..b0e9627c20d39462e7e58aa42642722da24d3437 100644
--- a/README
+++ b/README
@@ -22,6 +22,7 @@ Files:
     CHANGELOG
     README
     MANUAL
+    JUSTIFICATION
 
 
 Dependencies: