From the blog post:
“As part of the Xen community’s commitment to continuous improvement, the new hypervisor offers significant enhancements in the following areas:
• Xen Client Initiative (XCI) Enhancements –Xen.org continues develop industry virtualization standards for desktop and client devices. Xen 3.4 contains the initial XCI code release providing a base client hypervisor for the community to extend and improve. This new version of the Xen hypervisor expands the hardware options for the leading open source virtualization platform.
• Reliability – Availability – Serviceability (RAS) – In addition, Xen now delivers a collection of features designed to avoid and detect system failures, provide maximum uptime by isolating system faults, and provide system failure notices to administrators to properly service the hardware/software. The combination of these services provide for a robust Xen hypervisor with fault-tolerant and back-up capabilities built-in.
• Power Management – Xen 3.4 improves the power saving features with a host of new algorithms to better manage the processor including schedulers and timers optimized for peak power savings.”
On average, Xen.org receives more than 750 new code submissions to the source tree each month from developers across the world working on an array of solutions within the hypervisor.