diff --git a/README.md b/README.md
index 73168e0..df858f7 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 ###### TESTED PLATFORMS
 * Mac OS X Catalina (v10.15)
-* Ubuntu 19.04
+* Ubuntu 19.04, 20.04
 * Windows 10
 
 ----------
@@ -89,6 +89,8 @@ Losslessly compress ```Pictures``` folder and subfolders, located in the ```home
 $ caesiumclt -q 0 -RS -o ~/output/ ~/Pictures
 ```
 
+Note: Empty files are generated when disk full.
+
 ----------
 
 ###### CHANGELOG