Proxmox Release Notes

Here is the how-to for the CLI:

Check your debian.sources file, should look like this:

Types: deb
URIs: http://deb.debian.org/debian/
Suites: trixie trixie-updates
Components: main contrib non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

Types: deb
URIs: http://security.debian.org/debian-security/
Suites: trixie-security
Components: main contrib non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

The enterprise repository:

cat /etc/apt/sources.list.d/pve-enterprise.sources
Types: deb
URIs: https://enterprise.proxmox.com/debian/pve
Suites: trixie
Components: pve-enterprise
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg

The Ceph Squid enterprise repository:

cat /etc/apt/sources.list.d/ceph.sources
Types: deb
URIs: https://enterprise.proxmox.com/debian/ceph-squid
Suites: trixie
Components: enterprise
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg

Update your repository and packages:

apt update

If you get any errors, your sources.list (or your network or subscription key status) has a problem.

Now upgrade the packages:

apt dist-upgrade

Reboot to activate the new Kernel, to check if you got all packages, run 'pveversion -v' and compare your output (all packages should have equal or higher version numbers):

pve-server:~# pveversion -v

proxmox-ve: 9.0.0 (running kernel: 6.14.8-2-pve)
pve-manager: 9.0.3 (running version: 9.0.3/025864202ebb6109)
proxmox-kernel-helper: 9.0.3
proxmox-kernel-6.14: 6.14.8-2
proxmox-kernel-6.14.8-2-pve: 6.14.8-2
ceph: 19.2.3-pve2
ceph-fuse: 19.2.3-pve2
corosync: 3.1.9-pve2
criu: 4.1.1-1
frr-pythontools: 10.3.1-1+pve4
ifupdown2: 3.3.0-1+pmx9
ksm-control-daemon: 1.5-1
libjs-extjs: 7.0.0-5
libproxmox-acme-perl: 1.7.0
libproxmox-backup-qemu0: 2.0.1
libproxmox-rs-perl: 0.4.1
libpve-access-control: 9.0.3
libpve-apiclient-perl: 3.4.0
libpve-cluster-api-perl: 9.0.6
libpve-cluster-perl: 9.0.6
libpve-common-perl: 9.0.9
libpve-guest-common-perl: 6.0.2
libpve-http-server-perl: 6.0.3
libpve-network-perl: 1.1.6
libpve-rs-perl: 0.10.7
libpve-storage-perl: 9.0.13
libqb0: 1.0.5-1
libspice-server1: 0.15.2-1+b1
lvm2: 2.03.31-2
lxc-pve: 6.0.4-2
lxcfs: 6.0.4-pve1
novnc-pve: 1.6.0-3
proxmox-backup-client: 4.0.9-1
proxmox-backup-file-restore: 4.0.9-1
proxmox-backup-restore-image: 1.0.0
proxmox-firewall: 1.1.1
proxmox-kernel-helper: 9.0.3
proxmox-mail-forward: 1.0.2
proxmox-mini-journalreader: 1.6
proxmox-offline-mirror-helper: 0.7.0
proxmox-widget-toolkit: 5.0.4
pve-cluster: 9.0.6
pve-container: 6.0.9
pve-docs: 9.0.7
pve-edk2-firmware: 4.2025.02-4
pve-esxi-import-tools: 1.0.1
pve-firewall: 6.0.3
pve-firmware: 3.16-3
pve-ha-manager: 5.0.4
pve-i18n: 3.5.2
pve-qemu-kvm: 10.0.2-4
pve-xtermjs: 5.5.0-2
qemu-server: 9.0.16
smartmontools: 7.4-pve1
spiceterm: 3.4.0
swtpm: 0.8.0+pve2
vncterm: 1.9.0
zfsutils-linux: 2.3.3-pve1

pve-server:~#

Here is the how-to for the CLI:

Check your sources.list file, should look like this:

deb http://deb.debian.org/debian bookworm main contrib

deb http://deb.debian.org/debian bookworm-updates main contrib

# security updates
deb http://security.debian.org bookworm-security main contrib

The enterprise repository:

cat /etc/apt/sources.list.d/pve-enterprise.list
deb https://enterprise.proxmox.com/debian/pve bookworm pve-enterprise

The Ceph Reef enterprise repository:

deb https://enterprise.proxmox.com/debian/ceph-reef bookworm enterprise

Update your repository and packages:

apt update

If you get any errors, your sources.list (or your network or subscription key status) has a problem.

Now upgrade the packages:

apt dist-upgrade

Reboot to activate the new Kernel, to check if you got all packages, run 'pveversion -v' and compare your output (all packages should have equal or higher version numbers):

pve-server:~# pveversion -v

proxmox-ve: 8.4.0 (running kernel: 6.8.12-9-pve)
pve-manager: 8.4.0 (running version: 8.4.0/ec58e45e1bcdf2ac)
proxmox-kernel-helper: 8.1.1
proxmox-kernel-6.8: 6.8.12-9
proxmox-kernel-6.8.12-9-pve-signed: 6.8.12-9
ceph: 19.2.1-pve3
ceph-fuse: 19.2.1-pve3
corosync: 3.1.9-pve1
criu: 3.17.1-2+deb12u1
dnsmasq: 2.90-4~deb12u1
glusterfs-client: 10.3-5
ifupdown: residual config
ifupdown2: 3.2.0-1+pmx11
intel-microcode: 3.20250211.1~deb12u1
ksm-control-daemon: 1.5-1
libjs-extjs: 7.0.0-5
libknet1: 1.30-pve2
libproxmox-acme-perl: 1.6.0
libproxmox-backup-qemu0: 1.5.1
libproxmox-rs-perl: 0.3.5
libpve-access-control: 8.2.2
libpve-apiclient-perl: 3.3.2
libpve-cluster-api-perl: 8.1.0
libpve-cluster-perl: 8.1.0
libpve-common-perl: 8.3.1
libpve-guest-common-perl: 5.2.2
libpve-http-server-perl: 5.2.2
libpve-network-perl: 0.11.2
libpve-rs-perl: 0.9.4
libpve-storage-perl: 8.3.6
libspice-server1: 0.15.1-1
lvm2: 2.03.16-2
lxc-pve: 6.0.0-1
lxcfs: 6.0.0-pve2
novnc-pve: 1.6.0-2
proxmox-backup-client: 3.3.7-1
proxmox-backup-file-restore: 3.3.7-1
proxmox-firewall: 0.7.1
proxmox-kernel-helper: 8.1.1
proxmox-mail-forward: 0.3.2
proxmox-mini-journalreader: 1.4.0
proxmox-offline-mirror-helper: 0.6.7
proxmox-widget-toolkit: 4.3.10
pve-cluster: 8.1.0
pve-container: 5.2.6
pve-docs: 8.4.0
pve-edk2-firmware: 4.2023.08-3
pve-esxi-import-tools: 0.7.3
pve-firewall: 5.1.1
pve-firmware: 3.15-3
pve-ha-manager: 4.0.7
pve-i18n: 3.4.2
pve-qemu-kvm: 9.2.0-5
pve-xtermjs: 5.5.0-2
qemu-server: 8.3.12
smartmontools: 7.3-pve1
spiceterm: 3.3.0
swtpm: 0.8.0+pve1
vncterm: 1.8.0
zfsutils-linux: 2.2.7-pve2

pve-server:~#

We are pleased to announce the release of Proxmox Datacenter Manager 1.1!

This point release focuses on expanding visibility and automation for large-scale, multi-site deployments. Our main focus for this iteration has been introducing integrated automation installation workflows and taking our first major steps toward comprehensive, cross-remote guest management. This helps you manage your virtualized environments safely and efficiently at scale.

Proxmox Datacenter Manager 1.1 is based on Debian 13.5 "Trixie", ships with the Linux kernel 7.0 as the new stable default, and includes ZFS 2.4.

Main new features and enhancements

• Integrated automated installation workflows with per-installation bearer tokens
• Central subscription management
• Unified Ceph cluster monitoring on connected hyper-converged Proxmox VE remotes
• Central guest and snapshot management (first iteration)
• Local Proxmox Datacenter Manager host metrics shown as RRD graphs
• Enhanced infrastructure visualization with the map widget & resource gauges
• Enterprise support available for existing customers with active Basic or higher subscriptions for their Proxmox remotes
• Open-source license: GNU AGPLv3

In addition to these highlights, this release resolves a variety of underlying bugs and tunes performance across the management platform. Please check the full release notes for a complete breakdown of all changes.

Release notes

https://pdm.proxmox.com/docs/roadmap.html#proxmox-datacenter-manager-1-1

Press release

https://www.proxmox.com/en/about/company-details/press-releases/proxmox-datacenter-manager-1-1

Video tutorial

https://www.proxmox.com/en/services.../whats-new-in-proxmox-datacenter-manager-1-1/

Download

https://www.proxmox.com/en/downloads

Alternate ISO download:

https://enterprise.proxmox.com/iso

Documentation

https://pdm.proxmox.com/docs/

Community Forum

https://forum.proxmox.com

Bugtracker

https://bugzilla.proxmox.com

Source code

https://git.proxmox.com

Our BIG thanks go out to all of our community members, dedicated testers, and developers whose ongoing support, bug reports, and code contributions made this release possible. We invite everyone to dive in, try out the new provisioning options and the cross-remote views, and share your experiences, questions, or ideas right here in this discussion thread!

FAQ

Q: How does this integrate into Proxmox Virtual Environment and Proxmox Backup Server?
A: You can add arbitrary Proxmox hosts or clusters as remotes. Proxmox Datacenter Manager will then monitor them and provide basic management using only the API.

Q: How many different Proxmox VE hosts and/or clusters can I manage with a single Datacenter Manager instance?
A: Due to the early stage of development, there are still some pain points, but we are confident that we will be able to handle large setups with a moderate amount of resources. We have run tests with over 5000 remotes and over 10000 virtual guests to confirm the performance expectations of our new UI framework. We are targeting similar numbers for the backend.

Q: What Proxmox VE and Proxmox Backup Server versions are supported?
A: The minimum required Proxmox VE version is 8.4 and the minimum required Proxmox Backup Server version is 3.4.
We will support all actively supported Proxmox project releases, but encourage frequent upgrades of both PDM and the PVE and PBS remotes to leverage all features.

Q: Can I upgrade a 1.0 installation to the stable 1.1 via apt?
A: Yes, upgrading from 1.0 is possible via apt and GUI. We recommend using the
pdm-enterprise repository
on upgrade for the most stable experience.

Q: Can I upgrade Proxmox Datacenter Manager Alpha to this 1.1 version?
A: Yes, please follow the upgrade instructions on
https://pve.proxmox.com/wiki/Proxmox_Datacenter_Manager_Upgrade_from_Alpha_to_1

Q: How are the bearer tokens for the automated installation workflow managed?
A: Bearer tokens are scoped per installation and can be reviewed and revoked at any time from the Proxmox Datacenter Manager UI. See the documentation for details on the recommended lifecycle.

Q: Can I install Proxmox Datacenter Manager alongside Proxmox VE or Proxmox Backup Server?
A: Yes, but installing alongside other Proxmox projects is not the recommended setup (expert use only).

Q: What environment does Proxmox Datacenter Manager support?
A: Proxmox Datacenter Manager will work everywhere where a standard x86-64/AMD64 Debian system is supported.

Q: Are there any recommended system requirements for the Proxmox Datacenter Manager?
A: Yes, see
https://pdm.proxmox.com/docs/installation.html#system-requirements
.

Q: What network setups are supported between Proxmox Datacenter Manager and remotes?
A: In general the Proxmox Datacenter Manager needs to be able to connect to all Proxmox VE remotes directly to send API requests and query load and usage metrics. Remotes on the other hand do not need to be able to connect to Datacenter Manager directly. Reverse proxies between Proxmox Datacenter Manager and any of its Proxmox VE remotes are not supported, we recommend using tunneling (for example, WireGuard or OpenVPN) for hosts that must not be exposed directly to a non-private network.

Q: Where can I get more information about feature updates?
A: Check the
roadmap
,
forum
, the
mailing list
, and/or subscribe to our
newsletter
.

Best regards,
Thomas

Do you already have a Commercial Support Subscription? - If not,
Buy now
and read the
documentation

We are excited to announce the release of Proxmox Virtual Environment 9.2. This release focuses heavily on platform refinement, stability, and core optimization.

Proxmox VE 9.2 is built on the robust Debian 13.5 "Trixie" and ships with Linux kernel 7.0 as the new stable default. In addition to core system enhancements, this update integrates the latest versions of our key underlying technologies, including QEMU 11.0, LXC 7.0, and ZFS 2.4. Storage capabilities have also been advanced with Ceph Tentacle 20.2.1 as the new default stable release, and Ceph Squid 19.2.3 still available as an option.

Here are some of the highlights in Proxmox VE 9.2:

• New Dynamic Load Balancer for improved cluster resource utilization
• Expanded SDN with WireGuard as a new fabric protocol
• Fine-grained BGP/EVPN filtering with route maps and prefix lists
• Management of custom CPU models from the GUI
• New HA arm/disarm functionality
• Enrollment of Microsoft and Windows UEFI 2023 certificates via GUI and API
• 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/about/company-details/press-releases/proxmox-virtual-environment-9-2

Video tutorial

https://www.proxmox.com/en/training/video-tutorials/item/what-s-new-in-proxmox-ve-9-2

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 release features enhancements shaped directly by your feedback. A huge thank you to our community, customers, and partners for reporting bugs, submitting patches, and helping us test - we couldn't do it without you!

FAQ

Q: Can I upgrade from the 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 a 9.1 installation to the stable 9.2 via apt?
A: Yes, upgrading from 9.1 is possible via apt and GUI. We recommend switching to 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 9.2 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 9.2 with Ceph Squid or Tentacle?
A: This is a multi-step process. First, you have to upgrade Ceph from Reef to Squid while still on Proxmox VE 8.4, and afterward you can upgrade Proxmox VE from 8.4 to 9.2. Then you can upgrade Ceph from Squid to Tentacle on Proxmox VE 9.2. There are a lot of improvements and changes, so please follow the upgrade documentation exactly as described:
https://pve.proxmox.com/wiki/Ceph_Reef_to_Squid
https://pve.proxmox.com/wiki/Upgrade_from_8_to_9
https://pve.proxmox.com/wiki/Ceph_Squid_to_Tentacle

Q: Where can I get more information about feature updates?
A: Check the
roadmap
, forum
, the mailing list
, and/or subscribe to our
newsletter
.

Best regards,
Thomas

Do you already have a Commercial Support Subscription? - If not,
Buy now
and read the
documentation

We're pleased to announce the release of Proxmox Backup Server 4.2.

This version is based on Debian 13.4 ("Trixie"), uses Linux kernel 7.0 as the new stable default for improved hardware support, and comes with ZFS 2.4 for reliable, enterprise-grade storage.

Here are the highlights

• Move groups and namespaces within a datastore for easier backup reorganization
• Server-side encryption/decryption for sync jobs
• Improved sync performance with concurrent group processing ("worker-threads")
• S3-compatible object stores supported as backup storage backend, with request statistics and notifications
• Numerous performance, usability, and backend improvements across the stack
• and much more...

You can find all details in the full release notes, and as always, we're really looking forward to your feedback and experiences with Proxmox Backup Server 4.2!

Release notes

https://pbs.proxmox.com/wiki/Roadmap#Proxmox_Backup_Server_4.2

Press release

https://www.proxmox.com/en/about/company-details/press-releases/proxmox-backup-server-4-2

Download

https://www.proxmox.com/en/downloads

Alternate ISO download:

https://enterprise.proxmox.com/iso

Documentation

https://pbs.proxmox.com/docs

Community Forum

https://forum.proxmox.com

Bugtracker

https://bugzilla.proxmox.com

Source code

https://git.proxmox.com

Thanks for your contributions, ideas, and support — with your insights, we've introduced meaningful updates to enhance your experience.

FAQ

Q: Can I upgrade the latest Proxmox Backup Server 3.x to 4.2 with apt?
A: Yes, please follow the upgrade instructions on https://pbs.proxmox.com/wiki/Upgrade_from_3_to_4

Q: How does this integrate into Proxmox Virtual Environment?
A: Just add a Proxmox Backup Server datastore as a new storage target in your Proxmox VE. Make sure that you run the latest Proxmox VE 9.x

Q: Is Proxmox Backup Server still compatible with older clients or Proxmox VE releases?
A: We are actively testing the compatibility of all the major versions currently supported, including the previous one. This means that you can safely back up from Proxmox VE 8 to Proxmox Backup Server 4, or from Proxmox VE 9 to Proxmox Backup Server 3. However, full compatibility with major client versions that are two or more releases apart, like for example Proxmox VE 7 based on Debian 11 Bullseye and Proxmox Backup Server 4 based on Debian 13 Trixie, is supported on a best-effort basis only.

Q: How long will Proxmox Backup Server 3.4 receive bug fixes and security support?
A: Proxmox Backup Server 3.4 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 Backup Server 4, giving users ample time to plan their upgrade to the new major version.
For more information on the support lifecycle of Proxmox Backup Server releases, please visit:
https://pbs.proxmox.com/docs/faq.html#how-long-will-my-proxmox-backup-server-version-be-supported

Q: How do I install the proxmox-backup-client on my Debian or Ubuntu server?
A: We provide a "Proxmox Backup Client-only Repository". See https://pbs.proxmox.com/docs/installation.html#client-installation
For Debian derivatives we recommend installing the proxmox-backup-client-static package to avoid issues with different system library versions.

Q: What will happen with the existing backup tool (vzdump) in Proxmox Virtual Environment?
A: You can still use vzdump. The new backup is an additional, but very powerful way to back up and restore your VMs and containers.

Q: Is there any recommended server hardware for the Proxmox Backup Server?
A: We recommend enterprise-grade server hardware components, with fast local SSD/NVMe storage. Access and response times from rotating drives will slow down all backup server operations. See https://pbs.proxmox.com/docs/installation.html#recommended-server-system-requirements

Q: Can I install Proxmox Backup Server on Debian, in a VM, as LXC or alongside with Proxmox VE?
A: Yes, but all this is not the recommended setup (expert use only).

Q: Where can I get more information about upcoming features?
A: Follow the announcement forum and pbs-devel mailing list https://lists.proxmox.com/postorius/lists/pbs-devel.lists.proxmox.com/ and subscribe to our newsletter https://www.proxmox.com/news and see https://pbs.proxmox.com/wiki/Roadmap.

Best regards,
Thomas

Do you already have a Commercial Support Subscription? - If not, Buy now and read the documentation

Today, we announce the availability of a new archive CDN dedicated to the long-term archival of our old and End-of-Life (EOL) releases.

Effective immediately, this archive hosts all repositories for releases based on Debian 10 (Buster) and older.

The archive is reachable via the following URLs:

• http://archive.proxmox.com/
• https://archive.proxmox.com/

To use the archive for an EOL release, you will need to change the domain in the apt repository configuration files in /etc/apt/sources.list or inside /etc/apt/sources.list.d/ from enterprise.proxmox.com or download.proxmox.com to archive.proxmox.com.

Some important technical details for this archive:

• HTTP Support: We explicitly provide unencrypted HTTP access. This is crucial for older releases, as their SSL/TLS stacks are generally not compatible with modern Let's Encrypt certificates found on HTTPS.
• Security: Please note that package repository integrity is protected by release files signed with a GPG key on a Hardware Security Module (HSM). This validation occurs independently of transport security, making the use of HTTP safe for these package updates.
• Enterprise Repositories: The enterprise repositories for these specific EOL versions are available on the archive host without subscription restrictions, as they are fully synchronized with the other repositories.
• Rate Limiting: The archive resides on separate CDN nodes and is rate-limited, please only use it if really necessary.

Future Changes to the Main Repository

With this new archive in place, we will be removing these older packages from our main CDN in the near future. This change allows us to reduce load on the main mirrors and ensures sufficient space for upcoming releases.
Moving forward, we plan to roughly follow Debian's archival schedule: keeping stable, oldstable, and oldoldstable on the main CDN, and moving everything older to the archive CDN. We also plan to migrate older ISO images and container appliances to this archive in the future.

Note: While this archive ensures continued access to older resources, please remember that these versions are End-of-Life. If you are still using them, we strongly recommend upgrading to a current, supported release as soon as possible.

Best regards,
Thomas

Proxmox Backup Server 4.1 released!

Proxmox Backup Server 4.1 is now available. This release includes various improvements and bug fixes to enhance backup performance and reliability. Users are encouraged to upgrade to benefit from the latest features and security updates.

Key highlights of this release:

• Improved backup speed and efficiency
• Enhanced support for new storage backends
• Bug fixes and stability improvements

For detailed information, please refer to the official release notes on the Proxmox website.

Based on Debian Trixie (13.2)

• Latest 6.17.2-1 Kernel as new stable default
• QEMU 10.1.2
• LXC 6.0.5
• ZFS 2.3.4
• Ceph Squid 19.2.3

Highlights

• Create LXC containers from OCI images.
• Open Container Initiative (OCI) images are a popular format for distributing templates for system or application containers.
• OCI images can now be uploaded manually or downloaded from image registries, and then be used as templates for LXC containers.
• This allows to create full system containers from suitable OCI images.
• Initial support for creating application containers from suitable OCI images is also available (technology preview).
• Support for TPM state in qcow2 format.
• Some VM guest workloads require attaching a virtual Trusted Platform Module (TPM), for example newer Windows guests.
• The state of a virtual TPM can now be stored in the qcow2 format.
• This allows taking snapshots of VMs with a TPM state on file-level storages such as NFS or CIFS shares.
• Storages with "snapshots as volume chains" (technology preview) enabled now support taking offline snapshots of VMs with TPM state.
• Fine-grained control of nested virtualization for VM guests.
• Some VM guest workloads need access to the host CPU's virtualization extensions for nested virtualization.
• Examples are nested hypervisors or Windows guests with Virtualization-based Security enabled.
• A new vCPU flag allows to enable nested virtualization on top of a vCPU type that corresponds to the host CPU vendor and generation.
• This can be an alternative to using the full host vCPU type.
• More detailed status reporting for the Software-Defined Networking (SDN) stack in the GUI.
• Local bridges and VNets report the currently connected guests.
• EVPN zones additionally report the learned IPs and MAC addresses.
• Fabrics are now part of the resource tree and report routes, neighbors, and interfaces.

Kernel 6.17 as new stable default

• Seamless upgrade from Proxmox VE 8.4, see Upgrade from 8 to 9.

Based on Debian Trixie (13)
Latest 6.14.8-2 Kernel as new stable default
QEMU 10.0.2
LXC 6.0.4
ZFS 2.3.3
Ceph Squid 19.2.3

Highlights

• New major release based on the great Debian Trixie.
• Seamless upgrade from Proxmox VE 8.4, see Upgrade from 8 to 9.
• VM snapshots on thick-provisioned LVM storages with snapshots as volume chains (technology preview).
• A new property on thick-provisioned LVM storages enables support for snapshots as volume chains.
• With this setting, taking a VM snapshot persists the current virtual disk state under the snapshot's name and starts a new volume based on the snapshot.
• This enables VM snapshots on shared thick-provisioned LVM storages, as they are often used on LUNs provided by a storage box via iSCSI/Fibre Channel.
• High-Availability (HA) rules for node and resource affinity.
• HA affinity rules are a new mechanism to control the placement of HA resources, such as HA-enabled VMs and containers, on nodes.
• Node affinity rules mandate that HA resources should only be placed on particular nodes.
• Resource affinity rules mandate that a particular set of HA resources should always stay together on the same node or spread out to different nodes.
• Fabrics for the Software-Defined Networking (SDN) stack.
• Fabrics are routed networks of interconnected peers.
• The SDN stack now supports creating OpenFabric and OSPF fabrics of Proxmox VE nodes.
• Fabrics can be used for a full-mesh Ceph cluster or act as an underlay network for Virtual Private Networks (VPN).
• Modernized mobile web interface.
• ZFS now supports adding new devices to existing RAIDZ pools with minimal downtime.

Changelog Overview

Before upgrading, please consider Known Issues & Breaking Changes.

Based on Debian Trixie (13)

• Latest 6.14.8-1 Kernel as new stable default
• QEMU 10.0.2
• LXC 6.0.4
• ZFS 2.3.3
• Ceph Squid 19.2.2

Highlights

• New major release based on the great Debian Trixie.
• Seamless upgrade from Proxmox VE 8.4, see Upgrade from 8 to 9.
• VM snapshots on thick-provisioned LVM storages with snapshots as volume chains (technology preview).
• A new property on thick-provisioned LVM storages enables support for snapshots as volume chains.
• With this setting, taking a VM snapshot persists the current virtual disk state under the snapshot's name and starts a new volume based on the snapshot.
• This enables VM snapshots on shared thick-provisioned LVM storages, as they are often used on LUNs provided by a storage box via iSCSI/Fibre Channel.
• Fabrics for the Software-Defined Networking (SDN) stack.
• Fabrics are routed networks of interconnected peers.
• The SDN stack now supports creating OpenFabric and OSPF fabrics of Proxmox VE nodes.
• Fabrics can be used for a full-mesh Ceph cluster or act as an underlay network for Virtual Private Networks (VPN).

Changelog Overview

Before upgrading, please consider Known Issues & Breaking Changes.

Based on Debian Bookworm (12.10)

• Latest 6.8.12-9 Kernel as new stable default
• Newer 6.14 Kernel as opt-in
• QEMU 9.2.0
• LXC: 6.0.0
• ZFS: 2.2.7 (with compatibility patches for Kernel 6.14)
• Ceph Squid 19.2.1
• Ceph Reef 18.2.4
• Ceph Quincy 17.2.8 is end-of-life, users are advised to upgrade

Highlights

• Live migration with mediated devices such as NVIDIA vGPU.
  This allows the migration of running VM guests that use mediated devices.
  Hardware and driver support is required.
  Currently, only NVIDIA GPUs are known to support live migration.
• Support for external backup providers.
  Proxmox VE now provides an API that allows developers to write backup provider plugins.
  A backup provider plugin can implement backup and restore functionality for external backup solutions.
  This way, external backup solutions can be fully integrated with the Proxmox VE backup stack and GUI.
• Sharing host directories with VM guests using virtiofs.
  Virtiofs allows sharing directories between the Proxmox VE host and VMs without the overhead of a network filesystem.
  Modern Linux guests support virtiofs out of the box.
  Windows guests need to install additional software.
• Latest Linux 6.14 kernel available as opt-in kernel.
• Ceph Squid 19.2.1 is available as stable option.
• Seamless upgrade from Proxmox VE 7.4, see Upgrade from 7 to 8.

Changelog Overview

Before upgrading, please consider Known Issues & Breaking Changes.

Release Notes

• Based on Debian Bookworm (12.8)
• Latest 6.8.12-4 Kernel as new stable default
• Newer 6.11 Kernel as opt-in
• QEMU 9.0.2
• LXC: 6.0.0
• ZFS: 2.2.6 (with compatibility patches for Kernel 6.11)
• Ceph Reef 18.2.4
• Ceph Quincy 17.2.7
• New Ceph Squid 19.2.0 available as technology preview

Highlights

New "Tag View" for a quick and customizable overview of virtual guests.
Users can already categorize their virtual guests using custom tags.
The new "Tag View" view type for the resource tree shows virtual guests grouped according to their tags.
This allows for a quick overview of the categories of virtual guests in the cluster.
Tighter integration of the Software-Defined Networking (SDN) stack with the firewall.
Proxmox VE SDN now generates IP sets for VNets and virtual guests managed by the PVE IP address management plugin.
These IP sets can be referenced in firewall rules, making the rules simpler and easier to maintain.
In addition, the opt-in firewall based on nftables now allows to filter forwarded traffic, both on the host and VNet level.
More streamlined guest import from files in Open Virtualization Format (OVF) and Open Virtualization Appliances (OVA).
OVF and OVA files can be directly imported from file-based storages in the GUI.
This makes it easier to import virtual appliances and simplifies migration from hypervisors supporting OVF/OVA export.
Users can upload OVA files from their local machine or download them from a URL.
The improved OVF/OVA importer now also recognizes the guest OS type, NICs, boot order, and boot type.
Webhook target for the notification system.
The new webhook notification target allows notification events to trigger HTTP requests.
Request headers and body can be customized and can contain notification metadata.
This allows users to push notifications to any target that supports webhooks.
New change detection modes for speeding up container backups to Proxmox Backup Server.
Metadata and data of backup snapshots are now stored in two separate archives.
Optionally, files that have not changed since the previous backup snapshot can be identified using the previous backup snapshot's metadata archive.
Processing of unchanged files is avoided when possible, which can lead to significant reduction in backup runtime.
Ceph Squid 19.2.0 is available as a technology preview.
Seamless upgrade from Proxmox VE 7.4, see Upgrade from 7 to 8.

Changelog Overview

Before upgrading, please consider Known Issues & Breaking Changes.