The Update Assistant module allows you to update your PrestaShop store in just a few clicks, while ensuring the backup and restoration of your data if necessary.
Module download
You can download the Update Assistant module from:
Module presentation
Formerly known as the "1-Click Upgrade", this module guides you through the processes of updating, backing up and restoring your store.
It also has a Command-Line Interface (CLI) that allows you to execute these same processes from a terminal:
Documentation
You can find all the detailed information on how to use Update Assistant, whether via the web interface or command line, in the official documentation.