Proxmox Backup Server 3.3 has been released, showcasing updates and enhancements driven by user feedback. The latest version is built on Debian 12.8 and incorporates the updated Linux kernel 6.8.12-4 as the stable default, with kernel 6.11 available as an optional upgrade. Key features encompass an updated approach for remote synchronization tasks, enhanced support for removable datastores, the introduction of a new webhook notification target, innovative change detection modes aimed at accelerating file-based host and container backups, along with various enhancements for overall client and backend usability.
Proxmox Backup Server 3.3 released!
We’re excited to share the newest release of Proxmox Backup Server 3.3, packed with updates and improvements inspired by your valuable input!
This version is based on Debian 12.8 ("Bookworm") but uses the newer Linux kernel 6.8.12-4 as stable default and kernel 6.11 as opt-in, and ZFS 2.2.6 (with compatibility patches for Kernel 6.11).
Here are some of the highlights
- New push direction for remote synchronization jobs
- Support for removable datastores
- New webhook notification target
- New change detection modes for speeding up file-based host and container backups
- Countless improvements for general client and backend usability
As always, we’d love to hear your thoughts. Check out the full release notes and share your feedback below!
Release notes
https://pbs.proxmox.com/wiki/index.php/Roadmap
Press release
https://www.proxmox.com/en/news/press-releases
Watch the talk from SFSCON24:
"Proxmox Backup Server: Backup for your Datacenter" - Christian Ebner
https://www.sfscon.it/talks/proxmox-backup-server-backup-for-your-datacenter/
Download
Alternate ISO download:
https://enterprise.proxmox.com/iso
https://www.proxmox.com/en/downloads
Documentation
https://pbs.proxmox.com/docs
Community Forum
https://forum.proxmox.com
Bugtracker
https://bugzilla.proxmox.com
Source code
https://git.proxmox.com
This release is a testament to the power of collaboration within our community. A big THANK YOU for your contributions, ideas, and support—we couldn’t have done this without you!
FAQ
Q: Can I upgrade the latest Proxmox Backup Server 2.x to 3.3 with apt??
A: Yes, please follow the upgrade instructions on https://pbs.proxmox.com/wiki/index.php/Upgrade_from_2_to_3
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 8.3.
Q: Is Proxmox Backup Server still compatible with older clients or Proxmox VE releases?
A: We are actively testing compatibility between all currently supported major versions, including the previous version. Full compatibility with even older (major) client versions is supported only on a best effort basis.
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
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 backup 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/cgi-bin/mailman/listinfo/pbs-devel, and subscribe to our newsletter https://www.proxmox.com/news and see https://pbs.proxmox.com/wiki/index.php/Roadmap.
