diff --git a/scripts/upgrade b/scripts/upgrade
index 6938f4c..657e874 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -29,25 +29,6 @@ port=$(ynh_app_setting_get --app=$app --key=port)
 
 upgrade_type=$(ynh_check_app_version_changed)
 
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..."  --weight=1
-
-
-# Cleaning legacy permissions
-if ynh_legacy_permissions_exists; then
-	ynh_legacy_permissions_delete_all
-
-	ynh_app_setting_delete --app=$app --key=is_public
-fi
-
-if ! ynh_permission_exists --permission="admin"; then
-	# Create the required permissions
-	ynh_permission_create --permission="admin" --url="/" --allowed=$admin
-fi
-
-
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================