Proxmox Virtual Environment 9.1 available!

t.lamprecht

t.lamprecht

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Jul 28, 2015
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We're proud to present the next iteration of our Proxmox Virtual Environment platform. This new version 9.1 is the first point release since our major update and is dedicated to refinement.

This release is based on Debian 13.2 "Trixie" but we're using the newer Linux kernel 6.17.2 as new stable default. In addition to the main system enhancements, this update incorporates the latest versions of core technologies, including QEMU 10.1.2, LXC 6.0.5, ZFS 2.3.4, and Ceph Squid 19.2.3, all fully tested and integrated.

Please review the key highlights below, and thank you, as always, for your invaluable support.

Here are some of the highlights in Proxmox VE 9.1:
  • Create LXC containers from OCI images
  • Support for TPM state in qcow2 format
  • New vCPU flag for fine-grained control of nested virtualization
  • Enhanced SDN status reporting
  • and much more
This release incorporates numerous bugfixes and performance improvements across the platform. For a comprehensive list of changes, please see the full release notes.

Release notes
https://pve.proxmox.com/wiki/Roadmap

Press release
https://www.proxmox.com/en/news/press-releases

Video tutorial
https://www.proxmox.com/en/training/video-tutorials/item/what-s-new-in-proxmox-ve-9-1

Download
https://www.proxmox.com/en/downloads
Alternate ISO download:
https://enterprise.proxmox.com/iso

Documentation
https://pve.proxmox.com/pve-docs

Community Forum
https://forum.proxmox.com

Bugtracker
https://bugzilla.proxmox.com

Source code
https://git.proxmox.com

This latest release features enhancements and updates shaped by your ideas and support. A huge thank you to all of our community members and customers reporting bugs, submitting patches and getting involved in testing - THANK YOU!

FAQ
Q: Can I upgrade latest Proxmox VE 8 to 9 with apt?
A: Yes, please follow the upgrade instructions on https://pve.proxmox.com/wiki/Upgrade_from_8_to_9

Q: Can I upgrade an 9.0 installation to the stable 9.1 via apt?
A: A: Yes, upgrading from is possible via apt and GUI. We recommend using the pve-enterprise repository on upgrade for the most stable experience.

Q: How long will Proxmox VE 8.4 receive bug fixes and security support?
A: Proxmox VE 8.4 will receive security updates and critical bug fixes until August 2026. This support window provides an overlap of approximately one year after the release of Proxmox VE 9.0, giving users ample time to plan their upgrade to the new major version.
For more information on the support lifecycle of Proxmox VE releases, please visit:
https://pve.proxmox.com/pve-docs/chapter-pve-faq.html#faq-support-table

Q: Can I install Proxmox VE 9.1 on top of Debian 13 "Trixie"?
A: Yes, see https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_13_Trixie

Q: Can I upgrade my Proxmox VE 8.4 cluster with Ceph Reef to Proxmox VE 9.1 and to Ceph Squid?
A: This is a two-step process. First, upgrade Ceph from Reef to Squid. Then, upgrade Proxmox VE from version 8.4 to version 9.1. Be sure to closely follow the upgrade documentation, see:
https://pve.proxmox.com/wiki/Ceph_Reef_to_Squid
https://pve.proxmox.com/wiki/Upgrade_from_8_to_9

Q: Where can I get more information about feature updates?
A: Check the roadmap, forum, the mailing list, and/or subscribe to our newsletter.
 
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luckman212 said:
Nice! What's the correct way to update a PVE9.0 node to 9.1? would it be just

Code: 
apt update
apt dist-upgrade
Click to expand...
Yes, you can use that, or you can also use the web interface directly, which also does that sequence under the hood though:
t.lamprecht said:
Q: Can I upgrade an 9.0 installation to the stable 9.1 via apt?
A: A: Yes, upgrading from is possible via apt and GUI. We recommend using the pve-enterprise repository on upgrade for the most stable experience
Click to expand...
 
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t.lamprecht said:
Yes, you can use that, or you can also use the web interface directly, which also does that sequence under the hood though:
Click to expand...
is it planned to allow updating as non-root user from GUI? I have tested adding users trough different ways (FreeIPA & PAM / LDAP / OpenID) and none of them were able to update from gui even when they have SUDO privilages and Administrator role in PVE
 
Hi,
bronco said:
Does this version repair the bug for docker in LXC not working anymore?
Click to expand...
if you mean: https://bugzilla.proxmox.com/show_bug.cgi?id=7006 then yes:
Code: 
lxc-pve (6.0.5-2) trixie; urgency=medium

  * fix #7006: do not restrict /proc or /sys if nesting is enabled anyway, as
    then one can mount a fresh instance of procfs and sysfs inside the
    container anyway already, making any extra restriction useless and only
    allowing for breakage.

 -- Proxmox Support Team <support@proxmox.com>  Thu, 13 Nov 2025 18:09:44 +0100

However, in general it's recommended to install Docker inside a VM.
 
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Gilberto Ferreira said:
It's a little weird container inside a container.
Click to expand...
Given that Proxmox VE 9.1 provides support for OCI images as application containers, you can now run Docker containers through Proxmox VE directly. They get more or less “translated” to LXC containers. This feature is still a tech preview, though.
 
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fiona said:
Hi,

if you mean: https://bugzilla.proxmox.com/show_bug.cgi?id=7006 then yes:
Code: 
lxc-pve (6.0.5-2) trixie; urgency=medium

  * fix #7006: do not restrict /proc or /sys if nesting is enabled anyway, as
    then one can mount a fresh instance of procfs and sysfs inside the
    container anyway already, making any extra restriction useless and only
    allowing for breakage.

 -- Proxmox Support Team <support@proxmox.com>  Thu, 13 Nov 2025 18:09:44 +0100

However, in general it's recommended to install Docker inside a VM.
Click to expand...
Great. Thank you. Yes this is the one I was referring to.
 
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Nice! Love the new additions, especially:

* OCI Support
* Datacenter Bulk Options
* Add-To-HA via Wizard
* Networking Pinning via Installer, Auto-Installer

Thanks for the great work! We already used 9.1 in the training today, worked like a charm!
 
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t.lamprecht said:
We're proud to present the next iteration of our Proxmox Virtual Environment platform. This new version 9.1 is the first point release since our major update and is dedicated to refinement.

This release is based on Debian 13.2 "Trixie" but we're using the newer Linux kernel 6.17.2 as new stable default. In addition to the main system enhancements, this update incorporates the latest versions of core technologies, including QEMU 10.1.2, LXC 6.0.5, ZFS 2.3.4, and Ceph Squid 19.2.3, all fully tested and integrated.

Please review the key highlights below, and thank you, as always, for your invaluable support.

Here are some of the highlights in Proxmox VE 9.1:
  • Create LXC containers from OCI images
  • Support for TPM state in qcow2 format
  • New vCPU flag for fine-grained control of nested virtualization
  • Enhanced SDN status reporting
  • and much more
This release incorporates numerous bugfixes and performance improvements across the platform. For a comprehensive list of changes, please see the full release notes.

Release notes
https://pve.proxmox.com/wiki/Roadmap

Press release
https://www.proxmox.com/en/news/press-releases

Video tutorial
https://www.proxmox.com/en/training/video-tutorials/item/what-s-new-in-proxmox-ve-9-1

Download
https://www.proxmox.com/en/downloads
Alternate ISO download:
https://enterprise.proxmox.com/iso

Documentation
https://pve.proxmox.com/pve-docs

Community Forum
https://forum.proxmox.com

Bugtracker
https://bugzilla.proxmox.com

Source code
https://git.proxmox.com

This latest release features enhancements and updates shaped by your ideas and support. A huge thank you to all of our community members and customers reporting bugs, submitting patches and getting involved in testing - THANK YOU!

FAQ
Q: Can I upgrade latest Proxmox VE 8 to 9 with apt?
A: Yes, please follow the upgrade instructions on https://pve.proxmox.com/wiki/Upgrade_from_8_to_9

Q: Can I upgrade an 9.0 installation to the stable 9.1 via apt?
A: A: Yes, upgrading from is possible via apt and GUI. We recommend using the pve-enterprise repository on upgrade for the most stable experience.

Q: How long will Proxmox VE 8.4 receive bug fixes and security support?
A: Proxmox VE 8.4 will receive security updates and critical bug fixes until August 2026. This support window provides an overlap of approximately one year after the release of Proxmox VE 9.0, giving users ample time to plan their upgrade to the new major version.
For more information on the support lifecycle of Proxmox VE releases, please visit:
https://pve.proxmox.com/pve-docs/chapter-pve-faq.html#faq-support-table

Q: Can I install Proxmox VE 9.1 on top of Debian 13 "Trixie"?
A: Yes, see https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_13_Trixie

Q: Can I upgrade my Proxmox VE 8.4 cluster with Ceph Reef to Proxmox VE 9.1 and to Ceph Squid?
A: This is a two-step process. First, upgrade Ceph from Reef to Squid. Then, upgrade Proxmox VE from version 8.4 to version 9.1. Be sure to closely follow the upgrade documentation, see:
https://pve.proxmox.com/wiki/Ceph_Reef_to_Squid
https://pve.proxmox.com/wiki/Upgrade_from_8_to_9

Q: Where can I get more information about feature updates?
A: Check the roadmap, forum, the mailing list, and/or subscribe to our newsletter.
Click to expand...
911 runing smooth. Thanks alot.
 
This ^^
Plus I noticed that console is not available for such containers. Is it a bug or a feature?
Finally, I cannot configure such container with slaac ipv6.
 
PhantexTech said:
Awesome. I deployed an OCI container. How do I update it after the fact with a new image?
Click to expand...
That one of the major reasons for why it's a tech preview, i.e., it's a bit involved.
You basically need to create separate mounpoints for the data volumes (they are logged in CT create task) and then one can create a CT from the new image and move over the data volume. Making this simpler and more approachable is on the roadmap, but no promises how fast we can deliver here.
 
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