Container Compute Service:CoreDNS - Container Compute Service

CoreDNS is the DNS-based service discovery component for Alibaba Cloud Container Service (ACS) clusters. It provides DNS resolution for all pods in the cluster, enabling services to discover each other by name.

ACK maintains a compatibility mapping between CoreDNS versions and Kubernetes versions. When you create or upgrade a cluster, the CoreDNS version is automatically selected based on the cluster's Kubernetes version. For the full version compatibility matrix, see CoreDNS version in Kubernetes.

Usage notes

For DNS policies, custom domain configurations, and domain name resolution details, see DNS policies and domain name resolution.

Release notes

Managed version

Version number	Modification time	Description	Applicable cluster
v1.12.1.2	2025-10-10	Optimizations: Updated to community version v1.12.1. In clusters where the IPv6 dual-stack feature is disabled, queries for AAAA records directly return `nodata`. The multisocket plugin is enabled by default to improve performance.	ACS clusters that run Kubernetes 1.26 or later.
v1.11.3.2-f57ea7ed6-aliyun	2024-11-21	A new CoreDNS version is released. Kubernetes events are generated if errors occur when configurations are synchronized to CoreDNS.	ACS clusters that run Kubernetes 1.26 or later.
v1.9.3.21-1f1e73c2a-aliyun	2024-11-04	Fixed: the default address of the upstream DNS server is not PrivateZone.	ACS clusters that run Kubernetes 1.26 or later.
v1.9.3.20-8fd1da054-aliyun	2024-09-13	Managed CoreDNS can be configured using a CustomDNSConfig CR. For more information, see Configure custom parameters for managed CoreDNS.	ACS clusters that run Kubernetes 1.26 or later.
v1.9.3.10-7dfca203-aliyun	2023-04-03	Pods can be scheduled based on zone anti-affinity. The possibility of pod eviction in scenarios where auto scaling of nodes is enabled is reduced.	ACS clusters that run Kubernetes 1.26 or later.

Unmanaged version

Version number	Release date	Description	Applicable cluster
v1.9.3.10-7dfca203-aliyun	2023-04-03	Pods can be scheduled based on zone anti-affinity. The possibility of pod eviction in scenarios where auto scaling of nodes is enabled is reduced.	ACS clusters that run Kubernetes 1.26 or later.