#Release Notes

#4.2.0

#Features and Enhancements

#Support for Kubernetes 1.33

ACP now supports Kubernetes 1.33, delivering the latest upstream features, performance improvements, and security enhancements from the Kubernetes community.

#ACP CLI (ac)

The new ACP CLI (ac) enables you to develop, build, deploy, and run applications on ACP with a seamless command-line experience.

Key capabilities include:

• kubectl-compatible commands
• Integrated authentication with ACP platform environments
• Unified session management across multiple environments
• ACP-specific extensions for platform access and cross-environment workflows

For full feature details, see: ACP CLI (ac)

#Hosted Control Plane (HCP)

Released:

• Alauda Container Platform Kubeadm Provider
• Alauda Container Platform Hosted Control Plane
• Alauda Container Platform SSH Infrastructure Provider

Lifecycle: Agnostic (released asynchronously with ACP)

Hosted Control Plane decouples the control plane from worker nodes by hosting each cluster's control plane as containerized components within a management cluster. This architecture reduces resource usage, speeds up cluster creation and upgrades, and provides improved scalability for large multi-cluster environments.

For more information, see: About Hosted Control Plane

#Deprecated and Removed Features

#Kubernetes Version Upgrade Policy Update

Starting from ACP 4.2, upgrading the Kubernetes version is no longer optional. When performing a cluster upgrade, the Kubernetes version must be upgraded together with other platform components. This change ensures version consistency across the cluster and reduces future maintenance windows.

#Fixed Issues

This section will be updated when the information becomes available. Content is currently under review and will be published in a later revision of the documentation.

#Known Issues

This section will be updated when the information becomes available. Content is currently under review and will be published in a later revision of the documentation.