# May 2026 Security and Maintenance Updates for XCP-ng 8.3 LTS

DevFeed: [May 2026 Security and Maintenance Updates for XCP-ng 8.3 LTS](<https://devfeed.tech/articles/may-2026-security-and-maintenance-updates-for-xcp-ng-8-3-lts-12814.md>)

Original publisher: [Read original article](<https://xcp-ng.org/blog/2026/05/05/april-2026-security-and-maintenance-updates-for-xcp-ng-8-3-lts-2/>)

Author: Samuel Verschelde

Published: 2026-05-05T17:29:39Z

Content type: article

Language: en

Sources: [XCP-ng Blog](<https://devfeed.tech/sources/xcp-ng-blog.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [Linux](<https://devfeed.tech/topics/linux.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [linux](<https://devfeed.tech/tags/linux.md>), [lts](<https://devfeed.tech/tags/lts.md>), [maintenance](<https://devfeed.tech/tags/maintenance.md>), [security](<https://devfeed.tech/tags/security.md>), [update](<https://devfeed.tech/tags/update.md>), [updates](<https://devfeed.tech/tags/updates.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>)

## AI overview

The article announces security and maintenance updates for XCP-ng 8.3 LTS. The updates address vulnerabilities in XAPI, the Linux kernel, and Windows guest tools, while also making the QCOW2 disk format generally available for virtual machine disks larger than 2 TiB.

## Source excerpt

New security and maintenance updates are available for XCP-ng 8.3 LTS. This set of updates also marks the general availability of the QCOW2 disk format.