Following the archival of the upstream open-source Open Service Mesh project in upstream open source, the Open Service Mesh extension for Azure Arc-enabled Kubernetes will no longer receive any new minor version releases or new features and will be retired on 30 September 30, 2027. Security patch updates will be provided up until September 30, 2027.
You can continue to use the existing Open Service Mesh extension for Azure Arc-enabled Kubernetes until September 30, 2027 or transition to an open-source alternative such as Istio before that time. Migration guidance from Open Service Mesh (OSM) configurations to Istio can be found here.