What's New Across the Proxmox Stack
Virtual Environment, Backup Server, and Mail Gateway -- what each one just shipped, and how it fits into a homelab like the one running this site.
Proxmox isn't one product -- it's a family of three. Proxmox VE is the hypervisor and datacenter manager that every machine this site tracks eventually gets pressed into service for. Proxmox Backup Server is the dedicated, deduplicating backup layer that sits behind it. Proxmox Mail Gateway is the spam/virus filter that goes in front of a mail server, for the smaller slice of homelabbers running their own email. All three ship independently and often, which is exactly why the "Latest From Proxmox" section further down pulls straight from Proxmox's own press releases instead of a date I'd have to remember to update by hand.
Proxmox Virtual Environment (PVE)
Proxmox VE is the open-source hypervisor that combines KVM virtual machines and LXC containers under one web-based "datacenter" management layer -- clustering, high availability, storage, and software-defined networking, all from a browser. It's the piece of the stack this entire site's homelab, and most of the hardware tracked on the server and SFF node trackers, actually runs.
Latest release: PVE 9.2 (May 21, 2026)
- Dynamic Load Balancer — automatically migrates guests across cluster nodes for better balance and reliability, while strictly respecting existing HA rules.
- Expanded SDN — native WireGuard and BGP support, route maps and prefix lists for fine-grained route redistribution, OSPF redistribution, and IPv6 underlay support for EVPN.
- Custom CPU model management — a datacenter-level UI for creating virtual CPU profiles, with a flags selector showing what's actually supported across every node in the cluster.
- HA arm/disarm — temporarily suspend the HA stack for maintenance without losing resource state.
- Stack bump — Debian 13.5 "Trixie," Linux kernel 7.0, QEMU 11.0, LXC 7.0, ZFS 2.4, Ceph Tentacle 20.2.
PVE has kept shipping since: official Arm64 support landed in August 2026, and July 2026 brought HA infrastructure management tuned for NVIDIA Mission Control AI factories -- a reminder that the same load-balancing and HA primitives homelabbers use for a couple of VMs are the ones scaling up to run datacenter AI clusters.
Proxmox Backup Server (PBS)
PBS is Proxmox's dedicated, deduplicating backup target for VMs, containers, and physical hosts, and it plugs directly into PVE rather than bolting a generic backup tool on top. If you're already following the backup routine I run for the rest of this homelab, PBS is the natural place to point Proxmox itself.
Latest release: PBS 4.2
- Datastore reorganization — move groups and namespaces between locations, with per-group locking to keep data consistent mid-move.
- Sync encryption — push sync jobs can encrypt on the fly before sending to a remote instance, and pull sync jobs can decrypt remotely encrypted snapshots, with tape and sync keys managed from one panel.
- Parallel processing — multi-group parallel work via a worker-threads setting, which noticeably helps throughput over high-latency links.
- S3-compatible object storage — now officially supported as a backup backend, with request and traffic stats for keeping an eye on usage.
- Stack bump — Debian 13.4 "Trixie," Linux kernel 7.0, ZFS 2.4.
The S3-backend support is the one worth a second look if you don't have a dedicated backup box: it means PBS can ship backups to inexpensive object storage instead of requiring another physical machine sized just for backup capacity.
Proxmox Mail Gateway (PMG)
PMG sits in front of a mail server and filters spam and malware before it ever reaches an inbox. It's the least common of the three in a typical homelab -- most people aren't self-hosting their own mail domain -- but if you are, it's the piece that keeps that decision from being a security liability.
Latest release: PMG 9.1
- Quarantine usability — shared mailboxes can mark quarantined mail as seen to avoid redundant review, spam scores show their positive and negative components side by side, quarantined images load on-demand only for privacy, and quarantine access links can be copied straight from the dashboard.
- Backup encryption — native encrypted backups to a Proxmox Backup Server instance, protecting configuration and user statistics in transit and at rest.
- Stack bump — Debian 13.5, Linux kernel 7.0, SpamAssassin 4.0.2, ClamAV 1.4.4, PostgreSQL 17, ZFS 2.4.
The PBS backup encryption support is the detail worth noting even outside a mail context -- it's the same pattern showing up across the stack: every product getting a more direct, encrypted line to PBS rather than treating backups as an afterthought.
Official Proxmox Scripts & Tools
These three ship from Proxmox itself -- part of the actual packages, safe to run on a production host, and worth knowing about even outside of a major release.
pve8to9 — the upgrade readiness checker
Ships in the pve-manager package as of PVE 8.4. Run pve8to9 --full before upgrading a node from 8.x to 9.x and it hints and warns about anything that might break, without changing anything itself. Re-run it after fixing each warning -- it won't confirm a fix took until you do.
The no-subscription repository
If you're not running a paid subscription, Proxmox's own wiki documents adding the no-subscription repo to /etc/apt/sources.list.d/proxmox.sources (or through the web UI's Repository panel) so apt update actually finds package updates. It's explicitly labeled for testing/non-production use, and you still need the base Debian repos configured alongside it -- exactly the setup most homelabs are already running.
proxmox-auto-install-assistant — unattended installs
Official package (apt install proxmox-auto-install-assistant, plus xorriso) for baking an answer file into a PVE installer ISO -- from disk, a separate partition, HTTP, or PXE. Genuinely useful the moment you're reinstalling more than one node and don't want to click through the installer by hand each time.
Unofficial Apps & Add-ons
Not everything useful on a PVE host comes from Proxmox. The Community Scripts project -- built on the foundation of the late tteck's original Proxmox Helper-Scripts, now maintained by a small core team plus community contributors -- has grown into 400+ one-line installers that spin up a purpose-built LXC container for a specific app in a couple of minutes.
The pattern is always the same: search the app on community-scripts.org, copy the single command it gives you, paste it into a root shell on the Proxmox host, and pick Default or Advanced setup. A few of the categories most relevant to a homelab like this one:
🎬 Media
Jellyfin, Plex, Immich, Radarr/Sonarr -- the same tools behind my Media Lab, each in its own container instead of hand-rolled.
🏠 Home Automation
Home Assistant OS and Zigbee2MQTT are two of the most-run scripts in the whole project.
🌐 Networking
Pi-hole, AdGuard Home, and Nginx Proxy Manager -- small, single-purpose containers that are annoying to set up by hand and take two minutes this way.
📊 Monitoring & Databases
Grafana, Prometheus, and Uptime Kuma for visibility; PostgreSQL, MariaDB, and Redis when something else needs a backing store.
The honest caveat: these aren't written or reviewed by Proxmox, and by design they run as root on your host to provision the container. Only ever copy the command from community-scripts.org itself -- not a random forum post or an old mirror -- and use Advanced mode when you want to see exactly what resources and network settings it's about to hand the new container before it does.
Latest From Proxmox
Pulled live from Proxmox's own official press-release feed, so this list updates on its own as new releases land.
- Loading latest updates…
Related Resources
Running OpenClaw on Proxmox
Why PVE 9.2's Dynamic Load Balancer and WireGuard SDN matter for a self-hosted AI agent.
PVE 9.2 Press Release
Official announcement of the Dynamic Load Balancer and SDN updates.
PBS 4.2 Press Release
Official announcement covering datastore reorganization and S3 backends.
PMG 9.1 Press Release
Official announcement covering quarantine UX and backup encryption.
Official 8-to-9 Upgrade Guide
Proxmox's own wiki page for pve8to9 and the full upgrade process.
Community Scripts
400+ one-line app installers for Proxmox LXC containers.
Enterprise Server Tracker
Hardware sized to run a PVE cluster node or a dedicated PBS target.
My Backup Routine
Where PBS fits into the rest of this homelab's backup strategy.
Frequently Asked Questions
Is it safe to upgrade from Proxmox VE 8 to 9?
Yes, especially if you run the official pve8to9 checker first (pve8to9 --full). It flags anything likely to break without changing your system, so you can fix each warning and re-run it until it comes back clean before you touch the actual upgrade.
Do I need a paid Proxmox subscription to get updates?
No. A subscription gets you the stable enterprise repository and official support, but Proxmox's own no-subscription repository is documented and supported for testing/non-production use — exactly the case for most homelabs. You do still need the base Debian repos configured alongside it.
Are Community Scripts safe to run on a production Proxmox host?
They're widely used and actively maintained, but they aren't written or reviewed by Proxmox itself, and by design they run as root to provision each container. Only copy commands from community-scripts.org directly — never a forum repost or mirror — and use Advanced mode when you want to see exactly what resources and network settings a script is about to hand the new container.
How does the "Latest From Proxmox" list on this page stay up to date?
It's pulled live from Proxmox's own official press-releases RSS feed, cached for up to 12 hours, with a bundled fallback if the feed is ever unreachable. It updates on its own as Proxmox ships new releases — I'm not hand-editing a list of dates.
What's the difference between Proxmox VE, Backup Server, and Mail Gateway?
PVE is the hypervisor and datacenter manager that actually runs your VMs and containers. PBS is a separate, dedicated backup target that plugs into PVE for deduplicated, encrypted backups — see my own backup routine for where it fits. PMG is a spam/virus filter that sits in front of a mail server — only relevant if you're self-hosting your own email domain. They ship and version independently, but PVE is the one every homelab needs; PBS and PMG are optional depending on what you're running.