diff --git a/README.md b/README.md
index 180eeb6..bafffb7 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,10 @@ The data can be downloaded here: https://uni-bielefeld.sciebo.de/s/9p55VIn9OLmNq
 
 Size: around 70GB
 
-Structure:
+Structure: 
+Note that there are currently **two** versions of all the data available.
+Version 1.0 data contains the data described and used for the original master thesis. The master thesis can be viewed here.
+Version 1.1 data contains new calculated ngrams based on new officlally released xml protocols. Also some fixes have been introduced.
 
 ```
 .