# Upgrade Process Overview

This section explains how to upgrade specific components used within Document Generation Services (DGS).

Note: This section is intended for those users who have previously installed DGS.

## Overview

Users should perform the following steps to successfully upgrade DGS and specific components:

- Upgrade RabbitMQ and Erlang; install .NET 4.6.2.
- Upgrade Document Generation Services.

## Before You Begin

Before beginning the upgrade process, uninstall the following components:

- Document Generation Services
- RabbitMQ
- ERLang