diff --git a/scripts/upgrade b/scripts/upgrade
index 0f0c794..b97cab1 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -45,20 +45,8 @@ ynh_abort_if_errors
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
-ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
-# If final_path doesn't exist, create it
-if [ -z "$final_path" ]; then
-	final_path=/var/www/$app
-	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
-fi
-
-# Cleaning legacy permissions
-if ynh_legacy_permissions_exists; then
-	ynh_legacy_permissions_delete_all
-
-	ynh_app_setting_delete --app=$app --key=is_public
-fi
+upgrade_type=$(ynh_check_app_version_changed)
 
 #=================================================
 # CREATE DEDICATED USER