1 files changed, 4 insertions, 0 deletions

diff --git a/README.md b/README.md
index 7434a5f..6c1d241 100644
--- a/README.md
+++ b/README.md
@@ -133,3 +133,7 @@ Update your Scorm table:
 - Change hash_name to title
 - Remove origin_file_mime field
 
+***Upgrade from version 3 to 4:***
+Update your Scorm table:
+- Add identifier (varchar 191)
+