This document outlines new functionalities made available on the GST Portal for taxpayers between October and December 2020. It covers updates to various modules including Registration, Returns, E-way Bills, Advance Ruling, and Taxpayer Dashboards. Key highlights include changes to Aadhaar authentication, the QRMP scheme, auto-populated GSTR-3B, and SMS filing for NIL returns. This guide is essential for all registered taxpayers seeking to stay updated with the latest GST system enhancements.