With OpenShift Container Platform 4 - Cluster Logging 5.9, V13 object storage format has been introduced and examples on Deploying a Loki log store have been updated with schema version v13.

in Enabling stream-based retention with Loki the update is missing though and still referring to v11. While this is not terrible, it still would be nice to have the example updated as well to avoid confusion and hence use the same schema version across the entire OpenShift Container Platform 4 - Cluster Logging - Documentation.