We’re pleased to announce the beta release of XenServer 5.6 (code-named “Project Midnight Ride”) is now available.

XenServer 5.6 contains several highly-requested new features:

  • Granular Role-based Access Controls. Administrative users can be assigned one of several roles, which govern the actions they are able to complete from XenCenter and the command-line interface (CLI).
  • Administrative Logging and Audit. Administrative changes made from XenCenter or the CLI are logged and available in the Workload Reports in XenCenter.
  • Dynamic Memory Control. This feature can increase the number of VMs per host by permitting the memory utilization of existing VMs to be compressed so that additional VMs can boot on the host.  
  • Enhanced VM Snapshots. It is now possible to create full VM snapshots including the disk and memory state. Virtual machines can be easily rolled back to prior snapshot states with a “revert to snapshot” option.
  • Automated Workload Balancing & Power Management. Workload balancing (WLB) recommendations can be applied automatically without administrative intervention. Power Management features include support for wake-on-LAN and vendor-specific implementations from HP, Dell, and others.
  • StorageLink Site Recovery. Enhanced integration with storage-level replication enables recovery of an entire virtual infrastructure at a secondary disaster recovery site.
  • Citrix License Server integration. Essentials for XenServer features are now activated using a license applied to a Citrix Licensing Server.


The only requirement to access the beta is a MyCitrix account. For more information and to download the XenServer 5.6 beta please visit the XenServer beta page.

To report issues go to http://bugtracker.vmd.citrix.com, more details on reporting issues are available here.

The Project Midnight Ride forum can be used for general discussion on the beta release and reviewing announcements that pertain to all beta users.

Carl, on behalf of the XenServer engineering team