Xen and the art of hypervisor upgrades

The Xen Project has delivered an upgrade to its hypervisor.

Version 4.16 was announced yesterday by developer and maintainer Ian Jackson, capping a nine-month effort that saw four release candidates emerge in November 2021 prior to launch.

The Project's feature list for the release celebrates the following additions as the most notable inclusions:

Jackson also pointed to work that has advanced Xen's efforts to achieve functional safety -, a very-nice-to-have if the hypervisor is to achieve the Project's goal of becoming more attractive to developers of embedded systems. He also reported "significant work has been ongoing internally in order to get dom0 booting on RISC-V hardware".

Work on VirtIO support for Arm "continued making progress" but no mention was made of when it might debut in a full release. Version 4.16 has no known issues and will be supported until June 2023. Security updates will continue until December 2024.

The release can be found here and release notes, including build instructions, await your eyeballs here. ®

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