There is a new QEMU 11.1 package available in the
The package was tested internally for over two weeks and is now (2026-09-23) made available on the
This QEMU version is planned to become the new default version for the next Proxmox VE point release later this year.
Version
Note: While a limited number of our production workloads already use this version and run stable, we cannot test every possible hardware and configuration combination, so we do not recommend using this version for production workloads in general yet.
To upgrade, make sure you have configured the Proxmox VE Test repository.
Either use the web-interface to refresh and then upgrade using the Node -> Updates panel, or use a console with the following standard
The output of the
Note, as with all QEMU updates: To run with the new QEMU version, a VM must either be completely restarted (shut it down and then start it again, or use the restart command via the CLI or web-interface) or, to avoid downtime, consider live-migrating to a host that has already been upgraded to the new QEMU package version.
While we have been successfully running some production and many test loads on this version for some time now, no software is bug-free, and often such issues are related to the specific setup. So if you encounter regressions that are definitely caused by installing the new QEMU version (and not some other change), please always include the affected VM configuration and some basic HW (e.g. CPU model) and memory details.
We welcome your feedback!
Known issues:
None at the time of publishing.
pve-test repository for Proxmox VE 9.The package was tested internally for over two weeks and is now (2026-09-23) made available on the
pve-test repository.This QEMU version is planned to become the new default version for the next Proxmox VE point release later this year.
Version
11.1.1-1 of our QEMU package pve-qemu-kvm includes some important stable fixes that have been developed since the original QEMU 11.1 release.Note: While a limited number of our production workloads already use this version and run stable, we cannot test every possible hardware and configuration combination, so we do not recommend using this version for production workloads in general yet.
To upgrade, make sure you have configured the Proxmox VE Test repository.
Either use the web-interface to refresh and then upgrade using the Node -> Updates panel, or use a console with the following standard
apt commands:
Bash:
apt update
apt full-upgradeThe output of the
pveversion -v CLI command (or the web-interface's Node Summary -> Packages versions) should then include something like pve-qemu-kvm: 11.1.1-1.Note, as with all QEMU updates: To run with the new QEMU version, a VM must either be completely restarted (shut it down and then start it again, or use the restart command via the CLI or web-interface) or, to avoid downtime, consider live-migrating to a host that has already been upgraded to the new QEMU package version.
While we have been successfully running some production and many test loads on this version for some time now, no software is bug-free, and often such issues are related to the specific setup. So if you encounter regressions that are definitely caused by installing the new QEMU version (and not some other change), please always include the affected VM configuration and some basic HW (e.g. CPU model) and memory details.
We welcome your feedback!
Known issues:
None at the time of publishing.
