Alibaba Cloud Knative Add-on Introduction and Change Log-Container Service for Kubernetes(ACK)-阿里云帮助中心

Knative is an open-source Serverless framework on Kubernetes that provides cross-platform Serverless orchestration. ACK Knative offers a fully managed Serving add-on that handles workload deployment, multi-revision management, and scale-to-zero. View the release notes below.

Component introduction

Based on full compatibility with community Knative, ACK Knative is fully integrated with the Alibaba Cloud product ecosystem, further enhancing productization capabilities and providing more comprehensive product solutions. For more information about Knative, see Knative overview.

Knative includes these core components:

Knative Serving: Manages serverless workloads with application deployment, multi-version management, request-based auto scaling, canary releases, and scale-to-zero when there is no traffic.
Knative Eventing: Integrates event sources and supports event registration, subscription, and filtering. Its event model decouples producers from consumers.
Knative Functions: Creates, builds, and deploys stateless, event-driven functions as Knative services on Kubernetes without deep knowledge of Kubernetes, containers, or Knative.

Usage

For information about how to use Knative, see Deploy and manage Knative components. For information about how to manage Knative components, see Manage Knative components and Upgrade Knative Serving.

Change log

July 2026

Version	Change date	Changes	Impact
v1.18.3.16	July 8, 2026	Important The cluster version must be 1.31 or later. Supports sharing warm-up pools across Knative Services. Supports persisting session affinity to OSS. Supports scaling for asynchronous Agent tasks.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

April 2026

Version	Change date	Changes	Impact
v1.18.3.1	April 20, 2026	Important The cluster version must be 1.31 or later. Supports session affinity, providing accurate one-to-one request routing at the session level. Supports Agent Sandbox to provide an isolated execution environment for agents.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

March 2026

Version	Change date	Changes	Impact
v1.18.2.2	March 20, 2026	Important The cluster version must be 1.31 or later. When KPA scales in, idle Pods are removed first. Supports ALB traffic mirroring configuration. Supports customizing `drain-timeout` in queue-proxy.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

January 2026

Version	Change date	Changes	Impact
v1.18.1.22	January 12, 2026	Important The cluster version must be 1.31 or later. Fixed an issue where reserved instances were repeatedly created. Fixed the ALB Ingress reconciliation issue. Fixed the net-istio installation failure issue.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

November 2025

Version	Change date	Changes	Impact
v1.18.1.10	November 28, 2025	Important The cluster version must be 1.31 or later. New features: Compatible with community Knative 1.18.1. Supports the Gateway API. Supports the AI inference gateway Gateway with Inference Extension.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

September 2025

Version	Change date	Changes	Impact
v1.16.3.15	September 9, 2025	Important The cluster version must be 1.30 or later. New features: Supports defining wildcard domains for Knative Services. Supports ACS reserved instances.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

June 2025

Version	Change date	Changes	Impact
v1.16.3-aliyun.9	June 25, 2025	Important The cluster version must be 1.30 or later. Compatible with community Knative 1.16.3. Supports HostPath. Supports customizing `terminationGracePeriodSeconds`, decoupled from the `timeoutSeconds` parameter configuration.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

December 2024

Version	Change date	Changes	Impact
v1.14.2-aliyun.6	December 26, 2024	Important The cluster version must be 1.28 or later. Compatible with community Knative 1.14.2. Supports Liveness and Readiness probes for multi-container Pods. Supports checking `ContainerHealthy` for all containers to determine whether a Revision is Ready.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

November 2024

Version	Change date	Changes	Impact
v1.12.7-aliyun.6	November 12, 2024	Knative integration with EventBridge. Supports `StartupProbe`.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

September 2024

Version	Change date	Changes	Impact
v1.12.5-aliyun.7	September 9, 2024	Adapted for Kourier 1.12. Image repository adapted for ACR Enterprise Edition. Supports the ECS preemptible instance (Spot instance) dashboard. In ACK virtual node scenarios, supports specifying ECI as the resource type for reserved instances.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

June 2024

Version	Change date	Changes	Impact
v1.12.4-aliyun.7	June 18, 2024	Important The cluster version must be 1.26 or later. Compatible with community Knative 1.12.4. ACK managed cluster supports hosting the Knative control plane components, including `controller`, `autoscaler`, and `webhook`, so they no longer consume your Pod resources. When Knative is newly installed in a cluster, the control plane components are hosted automatically. Optimized integration between Knative and ASM. Optimized log output of the queue-proxy component.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

May 2024

Version	Change date	Changes	Impact
v1.10.9-aliyun.7	May 23, 2024	Supports configuring both internal-facing and internet-facing ALB instances simultaneously. Fixed an issue where routing rules were cleared when a DomainMapping was deleted. Fixed an issue where reserved instances were repeatedly created. Supports scaling Knative applications to 0 in ACK Serverless cluster.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

December 2023

Version	Change date	Changes	Impact
v1.10.6-aliyun.1	December 25, 2023	Important The cluster version must be 1.26 or later. Supports reusing an existing ALB. Knative Service supports the Downward API. Fixed CVE-2023-48713.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

October 2023

Version	Change date	Changes	Impact
v1.8.3-aliyun.1	October 17, 2023	Supports configuring the MSE gateway through DomainMapping in Knative for HTTPS certificate access. Fixed the reserved instance scale-in issue.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

July 2023

Version	Change date	Changes	Impact
v1.8.2-aliyun.1	July 20, 2023	Important The cluster version must be 1.24 or later. Based on the `autoscaling.knative.dev/activation-scale` setting, Knative creates a specified number of Pods during the initial service startup phase to handle traffic surges when requests scale from 0 to 1. Supports upgrading Knative from 1.4.x to 1.8.2.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

June 2023

Version

Change date

Changes

Impact

v1.4.5-aliyun.1

June 19, 2023

ACK Serverless Knative supports scaling Pods to 0 based on the MSE gateway.

Supports KServe.

This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

May 2023

Version	Change date	Changes	Impact
v1.4.3-aliyun.1	May 18, 2023	Supports the MSE gateway. Supports accurate scaling based on request concurrency.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

April 2023

Version	Change date	Changes	Impact
v1.4.2-aliyun.1	April 26, 2023	Compatible with Kubernetes 1.26. Supports AHPA GPU metric prediction. Fixed the Kourier gateway version issue.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.

March 2023

Version	Change date	Changes	Impact
v1.4.1-aliyun.1	March 23, 2023	Supports reserved instances. Enables the podspec-fieldref parameter by default. Fixed the Kafka Source startup issue.	This upgrade does not affect workloads. Perform the upgrade during off-peak hours.