How long does an Odoo 18 Upgrade take?

An Odoo 18 upgrade typically takes a few days to a few weeks, depending on system complexity, customizations, and data volume. With a detailed migration plan, testing environment, and experienced team, downtime is minimized. Timelines also vary based on whether you’re upgrading from Odoo 16, 17, or earlier. Regardless, an Odoo 18 upgrade is a manageable process that brings long-term performance gains.