Apache CloudStack 4.0.0-incubating 发布了，目前该项目还是 Apache 基金会的孵化项目。
CloudStack是一个开源云计算解决方案。可以加速高伸缩性的公共和私有云（IaaS）的部署、管理、配置。使用CloudStack作为基础，数据中心操作者可以快速方便的通过现存基础架构创建云服务。
4.0 版本包含新特性如下：
* Inter-VLAN Routing (VPC)
* Site-to-Site VPN
* Local Storage Support for Data Volumes
* Virtual Resource Tagging
* Secure Console Access on XenServer
* Added the ability to create a VM without immediately starting it (via API)
* Upload an Existing Volume to a Virtual Machine
* Dedicated High-Availability Hosts
* Support for Amazon Web Services API (formerly a separate package)
* AWS API Extensions to include Tagging
* Support for Nicira NVP (L2)
* Ceph RBD Support for KVM
* Support for Caringo as Secondary Storage
* KVM Hypervisor support upgraded to work with Ubuntu 12.04 and RHEL 6.3
主页：http://incubator.apache.org/cloudstack/
下载：http://incubator.apache.org/cloudstack/downloads.html
来自:开源中国社区
