diff --git a/ChangeLog b/ChangeLog
index 914b39954f538f0717076729c0763400e50f9142..60369360f1adecbd3df7bf726fcaa9b894ca7368 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,28 @@
 Version XX
 
+	Add validation checks. This will check the following:
+		All file types:
+	    	- CDS have no internal stop codon
+      		- CDS have valid stop codon
+		GFF / Chado:
+	    	- check complete gene model
+        	- check boundaries are valid
+        	- check all features are on the same strand
+        	- check CDS features have a phase
+        	- check attribute column 
+            - qualifiers have a value (not empty)
+            - only reserved tags start with uppercase
+	
+		Validation can be run in two ways: 
+			1. using the option in View->Feature Filters->Validation checks... which shows 
+			'failed' features in feature list windows
+			2. selecting 'Validation report ...' option in the popup menu when right clicking 
+			on the feature display. This produces a report with an option to auto-fix gene 
+			boundaries and stop codons. 
+	    
+	
+Version 15
+
 	Multiple BAM panels can be opened using the bamClone flag this is used with 
 	the -Dbam flag:
 	art -Dbam='/pathToFile/file1.bam,/pathToFile/file2.bam' -DbamClone=n