This topic provides release notes for Alibaba Cloud Service Mesh (ASM) and provides links to relevant references.

April 2023

FeatureDescriptionRegionSupported Istio versionEditionReferences
Support for Istio 1.16.x versions Open source Istio 1.16 series are supported. All1.16 and laterAllN/A
Simplified management of sidecar proxy injection The management of injection policies and sidecar injector settings is simplified. All1.16 and laterAllEnable automatic sidecar proxy injection
Support for the Google Remote Procedure Call (gRPC)-JSON transcoder plug-in You can access gRPC services by using RESTful APIs or HTTP/JSON requests. This simplifies the integration of gRPC services so that you can use gRPC services easily. All1.16 and laterEnterprise and UltimateUse an ingress gateway to enable access to a gRPC service in an ASM instance over HTTP
Logon to Mesh Topology as a RAM user Single Sign On (SSO) is implemented for the Mesh Topology console. You can log on to ASM Mesh Topology as a RAM user. All1.16 and laterEnterprise and UltimateLog on to ASM Mesh Topology with an Alibaba Cloud account or as a RAM user

March 2023

FeatureDescriptionRegionSupported Istio versionEditionReferences
Connection of an ingress gateway to a Web Application Firewall (WAF) instance
  • An ingress gateway can be connected to a WAF instance to protect services against attacks.
  • You can customize the fields of access logs to view the headers that are added by the WAF instance to back-to-origin requests. This facilitates online O&M.
AllAllEnterprise and UltimateConnect an ingress gateway to a WAF instance
Configuration of Ingress resources You can use Ingress resources in a cluster on the data plane and specify an ASM gateway as the Ingress controller to expose services in the cluster. All1.16 and laterEnterprise and UltimateUse an ASM gateway as an Ingress controller to expose services in a cluster
Management of Knative Services ASM integrates the capabilities of the Knative Serving component that is deployed in a Container Service for Kubernetes (ACK) cluster or a serverless Kubernetes (ASK) cluster. This helps you manage serverless workloads. All1.16 and laterEnterprise and UltimateUse ASM to manage Knative Services
Logon to Mesh Topology by using OpenID Connect (OIDC) You can connect to an identity provider (IdP) over the OIDC protocol to log on to Mesh Topology, and configure SSO to Mesh Topology in the ASM console. All1.15.3.120 and laterEnterprise and UltimateEnable Mesh Topology to observe an ASM instance in the ASM console
Overcommitment mode for sidecar proxies You can enable the dynamic resource overcommitment feature and configure resources that can be dynamically overcommitted in a sidecar proxy. All1.16 and laterEnterprise and UltimateConfigure ACK resources that can be dynamically overcommitted in a sidecar proxy
Configuration of egress traffic policies An egress traffic policy defines how an egress gateway manages egress traffic. By using a combination of sidecar proxies and authorization policies, you can control egress traffic in a comprehensive manner. All1.16 and laterEnterprise and Ultimate
Configuration of a global default HTTP request retry policy ASM allows you to configure a global default HTTP request retry policy that can define the number of retries, retry timeout period, and retry conditions. All1.15 and laterAllN/A

February 2023

FeatureDescriptionRegionSupported Istio versionEditionReferences
Support for Istio 1.15.3.105 version Open source Istio 1.15 series and Kubernetes 1.21 to 1.25 versions are supported. Allv1.15.3.105AllN/A
Enhanced observability
  • Telemetry custom resource definitions (CRDs) are provided to define and manage logging, monitoring, and tracing analysis features.
  • The user interface is updated to make the configuration of monitoring metrics easier and more efficient. The scope of metrics that must be displayed in the mesh topology is optimized.
  • Mesh-wide and namespace-specific configurations are supported.
AllAllAllCustomize metrics in ASM
Optimized performance of the mesh topology
  • The speed of loading the mesh topology is significantly increased for clusters each with more than 150 pods.
  • Health checks for workloads are optional. If you disable this feature, the speed of loading the mesh topology is improved.
All1.14 and laterAllEnable Mesh Topology to observe an ASM instance in the ASM console
Enhanced traffic management in the multi-cluster environment Traffic management is enhanced in the multi-cluster environment. When you deploy a service across multiple clusters, this feature ensures that traffic is only routed to workloads in the specified cluster. All1.15.3.101 and laterAllKeep traffic in-cluster
More flexible sidecar proxy configuration
  • Parameters such as Istio-Proxy Concurrency and Monitoring Statistics are provided for you to configure global-level sidecar proxies. Previously, these parameters were available only when you configured namespace-level or workload-level sidecar proxies.
  • The environment variables of sidecar proxies can be configured.
All1.15.3.101 and laterAllConfigure sidecar proxies
Custom ASM gateway configurations to enhance observability
  • Gateway configuration is allowed for a specific cluster in the multi-cluster environment.
  • More flexibility is provided for metric customization.
  • A dashboard is added to display key metrics of the gateway pod in real time.
AllAllEnterprise and UltimateConfigure a unified ingress gateway for multiple clusters

January 2023

FeatureDescriptionRegionSupported Istio versionEditionReferences
Topology query in any time range within 90 days The topology in any time range within 90 days can be queried by using the Mesh Topology tool. All1.14 and laterAllEnable Mesh Topology to observe an ASM instance in the ASM console
New environment variable for the configuration of sidecar proxies on the data plane A new environment variable is added to the configuration of sidecar proxies. You can configure the environment variable to load the bootstrap configuration before sidecar proxies are started. All1.15.3.63 and laterAllConfigure sidecar proxies
Enhanced security capabilities of ingress gateways OIDC-based SSO and JSON Web Token (JWT)-based authentication can be configured by using ASM ingress gateways in a few steps. All1.15.3.25 and laterEnterprise and Ultimate

Historical release notes

For more information about release notes before 2023, see Historical release notes (before 2023).