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7 changes: 6 additions & 1 deletion content/operate/oss_and_stack/install/upgrade/cluster.md
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ The supported upgrade paths are:
- Redis Open Source 7.x (with or without modules) to Redis 8 in Redis Open Source
- Redis Stack 7.2 or 7.4 to Redis 8 in Redis Open Source
{{< /note >}}

</br>
{{< note >}}
It's essential to practice upgrading Redis in a controlled environment before upgrading it in a production environment.
Docker is an excellent tool to use for this purpose.
Expand Down Expand Up @@ -55,6 +55,11 @@ Upgrade each node one at a time, starting with the replicas, using these steps:

If necessary, restore the saved files to their original locations on each node. Then restart Redis on each node.

{{< warning >}}
Redis Query Engine won't be fully operational until all master shards have completed their upgrades.
Any queries sent during the upgrade process will either return errors or a message such as "Waiting for all nodes to connect".
{{< /warning >}}

### Verify the upgrade

```bash
Expand Down