XCP was the free XenServer ISO. Citrix opened up the product in 2013, and XCP died on the wiki. In 2017, the Free edition lost live storage, dynamic memory, and GPU features. Olivier Lambert of Vates launched a Kickstarter, called it XCP-ng — next generation — and on March 31, 2018, released 7.4. The … Read more
XenServer is the product. Xen is the hypervisor. The confusion has lasted nineteen years: XenSource packages Cambridge’s work, Citrix buys it for half a billion, renames it Citrix Hypervisor, private equity restores the name, and in July 2026 XenServer 9 becomes “Citrix” again and supports every kind of workload — not just desktops. … Read more
In 2003, a hypervisor emerged from Cambridge’s Computer Laboratory and changed how servers were divided up. Xen — type 1, GPLv2, paravirtualization — became the foundation of Amazon EC2, Rackspace, and later Qubes OS. In 2026, Xen Project 4.21 is still the core of XenServer, XCP-ng, and a … Read more
On January 15, 2007, a GmbH in Weinstadt, Germany, released the code of the hypervisor it used with government and banking customers. The product was called VirtualBox. Within a year, it exceeded four million downloads; in February 2008, Sun bought Innotek; in January 2010, Oracle arrived. Nineteen years … Read more
