# QCOW2 is now GA in XCP-ng

DevFeed: [QCOW2 is now GA in XCP-ng](<https://devfeed.tech/articles/qcow2-is-now-ga-in-xcp-ng-12815.md>)

Original publisher: [Read original article](<https://xcp-ng.org/blog/2026/05/05/qcow2-is-now-ga-in-xcp-ng/>)

Author: Damien Thenot

Published: 2026-05-05T17:29:49Z

Content type: article

Language: en

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

Topics: [Disk image](<https://devfeed.tech/topics/disk-image.md>), [cloud-infrastructure](<https://devfeed.tech/topics/cloud-infrastructure.md>)

Tags: [new-feature](<https://devfeed.tech/tags/new-feature.md>), [news](<https://devfeed.tech/tags/news.md>), [production](<https://devfeed.tech/tags/production.md>), [qemu](<https://devfeed.tech/tags/qemu.md>), [release](<https://devfeed.tech/tags/release.md>), [standard](<https://devfeed.tech/tags/standard.md>), [storage](<https://devfeed.tech/tags/storage.md>), [test](<https://devfeed.tech/tags/test.md>), [update](<https://devfeed.tech/tags/update.md>)

## AI overview

XCP-ng 8.3 makes QCOW2 production-ready for virtual disks up to 16 TiB, addressing the 2 TiB limit of VHD. VHD remains the default for smaller disks, while Xen Orchestra automatically selects QCOW2 for new disks larger than 2040 GiB. The release emphasizes stability, testing, and compatibility with existing storage repositories.

## Source excerpt

QCOW2 is now GA in XCP-ng 8.3, supporting VM disks up to 16 TiB and replacing the 2 TiB VHD limit. Production-ready, stability-focused, with performance optimizations coming soon.