Upgrading Odoo is a project, not a button. This guide walks through the seven official steps, the differences between Odoo Online, Odoo.sh and on-premise, how to handle custom modules, and what to test before the production upgrade.

Odoo 20 brings AI agents that act on records, a real offline mode, a new access-rights model and many app-level improvements. Here is what changes for Odoo 19 users.