Upload/extract this ZIP into the JAN ERP web root and overwrite matching files. Then sign in as Full Admin and open upgrade_v3_6.php.
The upgrade creates a per-user unread notification stream. The top-right bell refreshes every 20 seconds and the Dashboard includes a recent-activity text box. New orders, challans, deliveries, invoices, payments, agreements, approvals and purchase activity are detected automatically.
Business Admin remains isolated from Investor notifications because notification visibility follows existing ERP permissions.