I’m pleased to announce the release of Xen Project Hypervisor 4.7 and Xen Project Hypervisor 4.6.3.
Xen Project Hypervisor 4.7
This new release focuses on improving code quality, security hardening, security features, live migration support, usability improvements and support for new hardware features — this is also the first release of our fixed term June – December release cycle.
The Xen Project’s code contributions have grown more than 10% each year. Although growth is extremely healthy to the project as a whole, it has its growing pains. For the Xen Project, it led to issues with its code review process: maintainers believed that their review workload increased and a number of vendors claimed that it took significantly longer for contributions to be upstreamed, compared to the past.
This is a guest blog post by Rich Persaud, former member of the Citrix XenServer and XenClient engineering and business teams. He is currently a consultant to BAE Systems, working on the OpenXT project, which stands on the shoulders of the Xen Project, OpenEmbedded Linux and XenClient XT.
Yesterday we created Xen 4.7 RC2 and will release a new release candidate every Wednesday, until we declare a release candidate as the final candidate and cut the Xen 4.7 release. We will also hold a Test Day every Friday for the release candidate that was released the Wednesday prior to the Test Day. This means we will have Test Days on May 13th, 20th, 27th and June 3rd.
We just wrapped another successful Xen Project Hackathon, which is an annual event, hosted by Xen Project member companies, typically at their corporate offices. This year’s event was hosted by ARM at their Cambridge HQ. 42 delegates descended on Cambridge from Aporeto, ARM, Assured Information Security, Automotive Electrical Systems, BAE Systems, Bromium, Citrix, GlobalLogic, OnApp, Onets, Oracle, StarLab, SUSE and Vates to attend. A big thank you (!) to ARM and in particular to Thomas Molgaard for organising the event and the social activities afterwards.
One of the core features that differentiates Xen from other open-source hypervisors is its native support for stealthy and secure monitoring of guest internals (aka. virtual machine introspection ). In Xen 4.6 which was was released last autumn several new features have been introduced that make this subsystem better; a cleaned-up, optimized API and ARM support being just some of the biggest items on this list. As part of this release of Xen, a new and unique feature was also successfully added by a team from Intel that make stealthy monitoring even better on Xen: altp2m.