> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fly.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Upgrade Postgres

<Warning>
  Important: We are not able to provide support or guidance for unmanaged Postgres. We now offer [Fly.io Managed Postgres](/mpg) , our fully-managed database service that handles all aspects of running production PostgreSQL databases.
</Warning>

You can upgrade a Fly Postgres cluster across minor Postgres app versions with [`fly image update`](/flyctl/cmd/fly_image_update). This updates your Machines to the [latest release](https://github.com/fly-apps/postgres-flex/releases) of the [postgres-flex](https://github.com/fly-apps/postgres-flex) app.

Check your current image with [`fly status`](/flyctl/cmd/fly_status):

```bash theme={null}
fly status -a <postgres-app-name>
```

And upgrade with:

```bash theme={null}
fly image update -a <postgres-app-name>
```

The update only works if the major Postgres version in your existing Postgres app matches that in the newest Postgres app release, for example `postgres-flex:15.2` to `postgres-flex:15.3`.

Upgrading Postgres across major versions is more complicated, and right now the way to do this is to provision a new cluster and restore a backup of your database data into it.

<Note>
  **Important:** If you're running the legacy version of Fly Postgres, then you won't be able to use `fly image update` to upgrade to the new Postgres Flex app. You'll need to create a new Postgres app and import your data using the [`fly postgres import`](/flyctl/cmd/fly_postgres_import) tool.

  To see your Postgres image and version, run `fly image show`. Legacy postgres images use the `flyio/postgres` repository, new Postgres Flex images use the `flyio/postgres-flex` repository.
</Note>