diff --git a/doc/MODULE_MIGRATION.md b/doc/MODULE_MIGRATION.md
index 4d7b6bf..161c4d1 100644
--- a/doc/MODULE_MIGRATION.md
+++ b/doc/MODULE_MIGRATION.md
@@ -2,4 +2,8 @@
 
 - bumblebee.util.which has been replaced with shutil.which
 - bumblebee.engine.Module has been replaced with core.module.Module
+- module __init__ has less parameters
+- super() works differently
+- register_callback is now core.input.register
+- update() doesn't have a list of widgets anymore