Active Azure Service Fabric clusters are not automatically upgreaded to latest version. This could result in cluster services to missout on important bug fixes.
In Azure Console -
In Terraform -
References:
https://learn.microsoft.com/en-us/azure/service-fabric/service-fabric-cluster-upgrade
https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/service_fabric_cluster