Project Summary
The Xen Project is a Linux Foundation Collaborative Project that focusses on the development and support of the Xen open source hypervisor and related components, developed and designed to run with the Linux platform. It includes the Xen Hypervisor, the Xen ARM Hypervisor, XAPI and Mirage OS. This page covers the XAPI toolstack.
The project develops the enterprise ready XAPI toolstack. Xen used with the XAPI toolstack consolidates server workloads, enables savings in power, cooling, and management costs and thus contributing to environmentally sustainable computing, an increased ability to adapt to ever-changing IT environments, an optimized use of existing hardware, and an improved level of IT reliability.
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In a Nutshell, Xen Project (XAPI)...
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has a well established, mature codebase
maintained by a very large development team
with decreasing Y-O-Y commits -
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took an estimated 195 years of effort (COCOMO model)
starting with its first commit in February, 2007
ending with its most recent commit 2 days ago
GNU LGPL 2.1 + linking exception (FPC/Lazarus)
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These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
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30 Day SummaryJun 2 2026 — Jul 2 2026
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