This section provides information about upgrading Sentinel and other components.
IMPORTANT:
After upgrading from Sentinel 8.3 or earlier to Sentinel 8.6, the existing Kibana custom dashboards will not be displayed. Ensure that you re-create the custom dashboard in Opensearch Dashboards after upgrading to Sentinel 8.6.
Set the Set to Expire parameter on partitions before initiating the upgrade process. This parameter cannot be set on the restored partition after upgrading to Sentinel 8.6
If the Set to Expire parameter is not set on partitions before the upgrade, then the option cannot be set on the restored partition after upgrading to Sentinel 8.6
After upgrading to Sentinel 8.6 from earlier to Sentinel 8.3.1, as the upgrade also updates the underlying data formats, existing event data will not be available for Sentinel operations such as search or report functionalities. To enable the data to be searched, you must re-index all event data partitions in the system after the upgrade. For more information, see Re-indexing Event Data Partitions in the Sentinel Administration Guide.
When you are upgrading the Sentinel server, make sure to upgrade Collector Manager systems, Correlation Engine systems, Destination Sentinel server in Sentinel link integrator, and Destination Sentinel server in Syslog integrator to the same version of the Sentinel server. Otherwise, you might face some issues in the system.