The Xen Project, the community which develops the Xen hypervisor under the GNU General Public License (GPLv2) and which is now transferred from Citrix to the Linux Foundation, today announced the release of version 4.3.1 of the Xen hypervisor. This so called Point release is the follow up of version 4.3 which was released in July this year.
Besides fixing some vulnerabilities, this release also introduces around 80 bug fixes and improvements, like adjustments to XSAVE management and bug fixes for nested virtualization, other low level system state handling and libxl tool stack.