additional note

Author: DaedalusG

docs/admin/deploy/docker-compose/upgrade.mdx

@@ -72,6 +72,7 @@ To perform a **manual** multi-version upgrade on a Sourcegraph instance running
    - Check the `Site Admin > Updates` page to determine [upgrade readiness](/admin/updates/#upgrade-readiness).
 
 2. **Disable Connections to the Database**:
+   > **⚠️ Attention:** If your database is still running Postgres 12, upgrade your database to Postgres 16 in this step. For our built-in databases offerings, this can be accomplished by starting the databases using our `postgresql-16` images packaged in the deploy repos starting in version `5.10.0`. Learn more [here](/admin/postgres).
    - Run the following command in the directory containing your `docker-compose.yaml` file.
   ```sh
   $ docker-compose stop && docker-compose up -d pgsql codeintel-db codeinsights-db

docs/admin/deploy/kubernetes/index.mdx

@@ -942,6 +942,8 @@ If you are upgrading to **Sourcegraph 5.1 or later**, we encourage you to perfor
 - Check the `Site Admin > Updates` page to determine [upgrade readiness](/admin/updates/#upgrade-readiness).
 
 **Step 2:**
+> **⚠️ Attention:** If your database is still running Postgres 12, upgrade your database to Postgres 16 in this step. For our built-in databases offerings, this can be accomplished by starting the databases using our `postgresql-16` images packaged in the deploy repos starting in version `5.10.0`. Learn more [here](/admin/postgres).
+
 Scale down `deployments` and `statefulSets` that access the database, _this step prevents services from accessing the database while schema migrations are in process._
 The following services must have their replicas scaled to 0:
  - Deployments (e.g., `kubectl scale deployment <name> --replicas=0`)

docs/admin/deploy/kubernetes/upgrade.mdx

@@ -133,6 +133,7 @@ To perform a **manual** multi-version upgrade on a Sourcegraph instance running
    - Check the `Site Admin > Updates` page to determine [upgrade readiness](/admin/updates/#upgrade-readiness).
 
 2. **Disable Connections to the Database**:
+  > **⚠️ Attention:** If your database is still running Postgres 12, upgrade your database to Postgres 16 in this step. For our built-in databases offerings, this can be accomplished by starting the databases using our `postgresql-16` images packaged in the deploy repos starting in version `5.10.0`. Learn more [here](/admin/postgres).
    - The following services must have their replicas scaled to 0:
      - Deployments (e.g., `kubectl scale deployment <name> --replicas=0`)
        - precise-code-intel-worker