Hi,

Upgrading an on-premise Odoo 18 database to Odoo 19 is possible, but it follows a specific process. Odoo treats database upgrades as part of its migration service. According to the official documentation, upgrades are normally handled by Odoo SA—you upload your database to their upgrade platform, and they return the migrated version. This ensures that all core modules and accounting rules are updated correctly.

For on-premise users, you can’t fully perform the database upgrade yourself. However, your technical team can prepare and test the migration process. The main steps are:

    Prepare your current Odoo 18 database

        Make sure it is clean: close open transactions, fix errors, uninstall unused or broken modules.

        Back up your database and filestore.

    Submit the database to Odoo’s Upgrade Service

        Upload the dump of your Odoo 18 database through the official upgrade platform.

        Odoo will process it and return a database compatible with Odoo 19.

    Handle custom modules

        Odoo only migrates the standard code. Your technical team must adapt and migrate custom apps/modules to ensure compatibility with v19.

        This usually requires code refactoring and testing on a staging server.

    Test the upgraded database

        Restore the upgraded database in a staging environment running Odoo 19.

        Verify all workflows, customizations, and integrations.

    Go live

        Once testing is validated, back up production again.

        Restore the migrated database into your Odoo 19 instance and switch users to the new system.

The database upgrade itself must go through Odoo’s upgrade service, but your team is responsible for preparing the v18 database, adapting custom modules, and testing everything before go-live.

Hope it helps

We will start testing the upgrade of Odoo Online databases in October. If all goes well, we will then allow On Premise and Odoo.sh databases to be upgraded in November.

It could be earlier or later - we want to provide a smooth experience - so will adjust based on how well the first several thousand upgrades go.

Databases need to be sent to the Odoo migration service.

Hi

Upgrading your Odoo on-premise instance from v18 to v19 involves several steps and careful planning. It's generally manageable with your technical team, but a backup is crucial.

  1. Back up your entire Odoo database and files. This is the most critical step. A full backup allows for rollback if issues arise during the upgrade.

  2. Update Odoo Server: Download the latest v19 Odoo server package and replace your existing v18 server files. Ensure you stop the Odoo server before doing this.

  3. Database Update: Odoo's upgrade process usually handles database migration automatically. Start the Odoo server; it should detect the need for an upgrade and guide you through the process. Monitor the logs closely for any errors.

  4. Post-Upgrade Checks: After the upgrade completes, thoroughly test all modules and functionalities to ensure everything works correctly. Check for any data inconsistencies or errors.

  5. Consider a Staging Environment: For larger installations, it's best practice to perform the upgrade on a staging environment first to identify and resolve potential issues before updating your production system.

For personalized assistance or to explore our Odoo support services, which include upgrade assistance, please visit:
https://www.pragtech.co.in/contact-us-mql.html