​
Upgrade process

This document only applies when changing Postgres major version (i.e. from 14 to 15/16 or from 15 to 16). It doesn’e apply when upgrading minor versions (i.e. from 14.5 to 14.11).

While new cloud projects ship with Postgres 14 by default, versions 15 and 16 are also supported. To change your major version you can go to Settings -> Database, select the new major version and start the process:

dashboard settings

Keep in mind that the upgrade process requires downtime. Pay attention to all the information provided to you in the settings page.

After starting the process you can follow it on the same page:

logs

Finally, you can confirm the upgrade by executing the SQL query SELECT version();

select version()

​
Projects with connected repos

This process can only be triggered from the dashboard. If you have a project with a connected repository and want to upgrade postgres to either 15 or 16 you will have to follow the steps below:

  1. Upgrade the major version using the dashboard
  2. Run nhost config pull or edit the nhost.toml by hand.
  3. Push to git (this step should be a NOOP and can be skipped)

If you attempt to change major versions via a deployment the deployment will fail. This is done on purpose to avoid unintended upgrades which can lead to downtime.

PerformanceEnabling Service