According to the XenSource Web site, the release of Xen 3.1 represents a major milestone in the Xen project containing performance and stability enhancements, additional features for all architectures, and a brand new management API. Highlights of this release include:
- XenAPI 1.0 support
- XML configuration files for virtual machines;
- VM life-cycle management operations; and
- Secure on- or off-box XML-RPC with bindings for many languages
- Basic save/restore/migrate support for HVM (e.g. Windows) VMs;
- Dynamic memory control for HVM guests;
- 32-on-64 PV guest support (run PAE PV VMs on a 64-bit Xen!); and
- Blktap copy-on-write disk support.
Download it, here.