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The Xen Project

The Xen Project
The Xen Project™ develops virtualization technologies powering the world's largest clouds in production and is the foundation of many commercial products.

ARM hosts Xen Project Hackathon, April 18-19 in Cambridge, UK

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I am pleased to announce the next Xen Project Hackathon. The Hackathon will be hosted by ARM in their Cambridge Headquarters from April 18 and 19. I wanted to thank Philippe Robin and Thomas Molgaard from ARM for hosting the Hackathon. ARM designs technology that is at the heart of advanced digital products and has […]

Open Source Virtualization Xen.org Discussion with Stephen Specter from Citrix – Episode 70

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In episode 70, Douglas Brown interviews Stephen Specter, Community Manager, Xen.org from Citrix Systems. Doug and Stephen will discuss the following: • Xen.org Community – What is it? How does it work? • Activities within Community – How can I join? • Xen.org Events – Xen Summit Information About Stephen Spector Stephen Spector is the […]

Xen Project Starts the New Year with a Bang!

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January Features Major Xen Project Activities at Two of the Biggest FOSS Conferences of the Year! The Xen Project is starting 2016 on a high note by sponsoring major events at both the largest community-run FOSS conference in North America (SCALE) and the world (FOSDEM). In addition to a flurry of technical talks in the […]

Future of Xen Project: Video Spotlight Interview with Citrix’s George Dunlap

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In this video, George Dunlap Senior Engineer of Citrix explains how and why Citrix works with the Xen Project, why companies use Xen Project Hypervisor, and new opportunities for the future of this technology. Citrix Systems designs, develops and markets technology solutions that enable information technology (IT) services. Citrix has always been committed to the […]

Xen Project Contributor Training v2

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Two weeks ago, I embarked onto a road trip to China with the aim to meet Xen Project users as well as contributors. I visited a number of vendors in Hangzhou and Beijing on this trip. Part of the objective was to give training to new contributors and developers, and to strengthen existing relationships. Hypervisor […]

Best Quality and Quantity of Contributions in the New Xen Project 4.6 Release

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I’m pleased to announce the release of Xen Project Hypervisor 4.6. This release focused on improving code quality, security hardening, enablement of security appliances, and release cycle predictability — this is the most punctual release we have ever had. We had a significant amount of contributions from cloud providers, software vendors, hardware vendors, academic researchers […]

Xen now available in CentOS 7 for ARM64 servers

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A little more than a week ago at Linaro Connect SFO15 in Burlingame Jim Perrin of the CentOS project publicly announced the availability of the Xen hypervisor in CentOS 7 for ARM64 (also known as aarch64). Jim and I have been working closely with George Dunlap, maintainer of Xen in CentOS for the x86 architecture, […]

Xen Project Participates in Round 11 of Outreachy

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This is a quick reminder that the Xen Project is again participating in Outreachy (Round 11). Please check the round 11 page for more information about the December 2015 to March 2015 round of interships. Outreach Program for Women has been helping women (cis and trans), trans men, and genderqueer people get involved in free […]

Xen Project Test Day for 4.6 RC4 Scheduled for October 1

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Our Fourth (and Possibly Final) 4.6 Release Candidate to be Tested This Thursday Our Xen Project Test Days help insure that upcoming releases are ready for production, beyond what our automated testing through our Test Lab can accomplish. It is particularly important that our users test out the upcoming release in their own environment. We […]

Our Next Test Day is September 15: Xen Project 4.6 RC3

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The Third 4.6 Release Candidate to be Tested on Tuesday Our Xen Project Test Days help insure that upcoming releases are ready for production, beyond what our automated testing through our Test Lab can accomplish. It is particularly important that our users test out the upcoming release in their own environment. We rely on your […]

Will Docker Replace Virtual Machines?

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Docker is certainly the most influential open source project of the moment. Why is Docker so successful? Is it going to replace Virtual Machines? Will there be a big switch? If so, when? Let’s look at the past to understand the present and predict the future. Before virtual machines, system administrators used to provision physical […]

The Bare-Metal Hypervisor as a Platform for Innovation

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In this industry, everyone seems to talk about innovation, but very few platforms exist which foster innovation.  More times than not, “innovation” is simply a buzzword used by some marketing campaign to hawk something about as novel as twenty-year-old accounting software. Innovation does occur, of course.  But often real innovation leverages what already exists to […]

Xen Project 4.5.1 Maintenance Release Available

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I am pleased to announce the release of Xen 4.5.1. We recommend that all users of the 4.5 stable series update to this first point release. Xen 4.5.1 is available immediately from its git repository: or from the Xen Project download page at www.xenproject.org/downloads/xen-archives/xen-45-series/xen-451.html. This release contains many bug fixes and improvements. For example: Removal […]

Introducing the Xen Project – OpenStack CI Loop

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We recently introduced the new Xen Project Test Lab, a key piece of infrastructure to improve the quality of our code and code coverage. As stated earlier, “we are serious and proactive when it comes to minimising and, whenever possible, eliminating any adverse effects from defects, security vulnerabilities or performance problems”. This also applies to […]

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